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Chevrolet K5 Blazer Specifications

Be sure to checkout the  factory brochures  for your specific year, thanks to Aaron Shephard for putting the brochures online.

Due to surplus or shortages of components in any given year, some discrepancy may result between model years.  Every effort has been given to ensure accuracy, if you notice a discrepancy or have additional information, please contact Colorado K5.

All tables are for 4x4 Blazers only and do not include 2x4 or GMC Jimmy

(M)=manual transmission  (A)=automatic transmission *=see notes

Choose model year below to see specifications.
1991 1990 1989 1988 1987 1986 1985 1984
1983 1982 1981 1980 1979 1978 1977 1976
1975 1974 1973 1972 1971 1970 1969  

 

 

Year: 1991 Production Total: 7,332
Base Price: 17,590 Weight: 4,507
Wheel Base: 106.5 in. Fuel Tank Capacity: 26-gallon/31- gallon
Length: 184.8 in. Height: 73.4 in.
Std. Engine, (HP):

OHV Eight-cylinder 350 cid. (210) @ 4000 rpm

Opt. Engine, (HP):

OHV Diesel Eight-cylinder 379 cid. (130) @ 3600 rpm

Rear Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 30 Spline)

Front Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 30 Spline)

Transmission (M):

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

4L60 * (3.06:1 First Gear)

Transfer Case (M):

NP241 (2.72:1 Low Range)

Transfer Case (A):

NP241 (2.72:1 Low Range)

Notes:

* The 700R4 was re-named to 4L60 in 1991.

The TBI (throttle body injection) system used on the Blazer's standard 5.7-liter V-8 had longer throttle shaft bearings, new throttle return springs, and improved fuel mixture distribution.  The 5.7-liter V-8 also had new heavy-duty intake valves and powdered metal camshaft sprockets.

Standard on all engines was a lighter more powerful 100-amp CS130 alternator.

Two new exterior colors, Brilliant Blue and Slate Metallic were offered.

Blazers featured a steel half-cab with an integral roll bar built into the steel front compartment roof and lock pillar structures.

 

 

Year: 1990 Production Total: 18,921
Base Price: 16,485 Weight: 4,839
Wheel Base: 106.5 in. Fuel Tank Capacity: 26-gallon/31- gallon
Length: 184.8 in. Height: 73.4 in.
Std. Engine, (net HP):

OHV Eight-cylinder 350 cid. (210) @ 4000 rpm

 

 

Opt. Engine, (net HP):

OHV Diesel Eight-cylinder 379 cid. (130) @ 3600 rpm

OHV Diesel Eight-cylinder 379 cid. (148) @ 3600 rpm

Rear Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 30 Spline)

Front Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 30 Spline)

Transmission (M):

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH700-R4 (3.06:1 First Gear)

Transfer Case (M):

NP241 (2.72:1 Low Range)

Transfer Case (A):

NP241 (2.72:1 Low Range)

Notes:

All Blazers now had a standard rear wheel antilock braking system.

A new electronic speedometer was also introduced for 1990, along with non-asbestos brake linings.

The Blazer body also used double sided, galvanized exterior sheet metal.

The 5.7-liter V-8 (L05) engine was improved for 1990 with the addition of improved oil control rings, a redesigned rear crankshaft seal, a new camshaft sprocket design, non-asbestos intake manifold gaskets, and heavy-duty intake valves.

Blazers featured a steel half-cab with an integral roll bar built into the steel front compartment roof and lock pillar structures.

 

 

Year: 1989 Production Total: 26,663
Base Price: 15,965 Weight: 4,878
Wheel Base: 106.5 in. Fuel Tank Capacity: 26-gallon/31- gallon
Length: 184.8 in. Height: 73.4 in.
Std. Engine, (net HP):

OHV Eight-cylinder 350 cid. (210) @ 4000 rpm

 

 

Opt. Engine, (net HP):

OHV Diesel Eight-cylinder 379 cid. (130) @ 3600 rpm

OHV Diesel Eight-cylinder 379 cid. (148) @ 3600 rpm

Rear Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 30 Spline)

Front Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 30 Spline)

Transmission (M):

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH700-R4 (3.06:1 First Gear)

Transfer Case (M):

NP241 (2.72:1 Low Range)

Transfer Case (A):

NP241 (2.72:1 Low Range)

Notes:

The 1989 Blazer had new base and up-level grilles, as well as new headlight bezels and new body side moldings, and bumper rub strips.

Corporate 10-bolt axles were upgraded to 30 spline axle shafts from previous 28 spline (1989-91).

New for 1989 was the introduction of an all-new base coat/clear coat paint.

The L05 5.7-liter V-8 now had serpentine accessory drive belts in place of the older multi-belt accessory drive.

Blazers featured a steel half-cab with an integral roll bar built into the steel front compartment roof and lock pillar structures.

 

 

Year: 1988 Production Total: 28,446
Base Price: 14,509 Weight: 4,676
Wheel Base: 106.5 in. Fuel Tank Capacity: 26-gallon/31-gallon
Length: 184.8 in. Height: 73.4 in.
Std. Engine, (net HP):

OHV Eight-cylinder 350 cid. (210) @ 4000 rpm

 

 

Opt. Engine, (net HP):

OHV Diesel Eight-cylinder 379 cid. (130) @ 3600 rpm

OHV Diesel Eight-cylinder 379 cid. (148) @ 3600 rpm

Rear Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)

Front Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)

Transmission (M):

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH700-R4 (3.06:1 First Gear)

Transfer Case (M):

NP208 (2.61:1 Low Range)

NP241 (2.72:1 Low Range)

Transfer Case (A):

NP208 (2.61:1 Low Range)

NP241 (2.72:1 Low Range)

Notes:

Four new colors were introduced for 1988: Bright Blue Metallic, Forest Green Metallic, Light Mesa Brown Metallic, and Dark Mesa Brown Metallic.

New features for 1988 include a fixed mast antenna in place of the old windshield antenna, a trip odometer as part of the gauge package cluster, and an improved pulse windshield wiper control.

Helping to reduce air leaks in the doors was a new door handle seal.

Blazers featured a steel half-cab with an integral roll bar built into the steel front compartment roof and lock pillar structures.

 

 

Year: 1987 Production Total: 32,437
Base Price: 13,066 Weight: 4,379
Wheel Base: 106.5 in.

 

Fuel Tank Capacity:

94 liter (24.83-gallon)/117 liter (31-gallon)

Length: 184.8 in. Height: 73.4 in.
Std. Engine, (HP):

OHV Eight-cylinder 350 cid. (210) @ 4000 rpm

 

 

Opt. Engine, (HP):

OHV Diesel Eight-cylinder 379 cid. (130) @ 3600 rpm

OHV Diesel Eight-cylinder 379 cid. (148) @ 3600 rpm

Rear Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)

Front Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)

Transmission (M):

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH700-R4 (3.06:1 First Gear)

Transfer Case (M):

NP208 (2.61:1 Low Range)

Transfer Case (A):

NP208 (2.61:1 Low Range)

Notes:

New for 1987 was the TBI (throttle body injection) fuel injection system.

Blazers featured a steel half-cab with an integral roll bar built into the steel front compartment roof and lock pillar structures.

 

 

Year: 1986 Production Total: 37,310
Base Price: 12,034 Weight: 4,444
Wheel Base: 106.5 in.

 

Fuel Tank Capacity:

94 liter (24.83-gallon)/117 liter (31-gallon)

Length: 184.8 in. Height: 73.4 in.
Std. Engine, (net HP):

OHV Six-cylinder 262 cid. (155) @ 4000 rpm

 

 

 

 

 

 

 

 

 

Opt. Engine, (net HP):

OHV Eight-cylinder 305 cid. (155) @ 4000 rpm

OHV Eight-cylinder 305 cid. (160) @ 4400 rpm

OHV Eight-cylinder 350 cid. (160) @ 3800 rpm

OHV Eight-cylinder 350 cid. (165) @ 3800 rpm

OHV Eight-cylinder 350 cid. (185) @ 4000 rpm

OHV Diesel Eight-cylinder 379 cid. (130) @ 3600 rpm

OHV Diesel Eight-cylinder 379 cid. (148) @ 3600 rpm

Rear Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)

Front Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)

Transmission (M):

SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH700-R4 (3.06:1 First Gear)

 

Transfer Case (M):

NP208 (2.61:1 Low Range)

Transfer Case (A):

NP208 (2.61:1 Low Range)

Notes:

Blazers for 1986 had new molded front bucket seats with folding seat backs.

Three new paint colors, Canyon Copper Metallic, Nevada Gold Metallic, and Steel Gray Metallic were released.

A body color panel between upper, and lower grilles, and the grilles had only a single horizontal bar intersected by seven vertical bars.  The headlight housing had a vertical look with rectangular lamps  stacked atop each other again.  An amber-colored parking lamp was standard on the bottom, but when halogen high-beams were ordered, the parking lamps moved behind the lower grille.

First year for the one piece rear main engine seal making this model year engine non interchangeable with Blazers of older vintage without changing flywheel etc...

Blazers featured a steel half-cab with an integral roll bar built into the steel front compartment roof and lock pillar structures.

 

 

Year: 1985 Production Total: 40,011
Base Price: 11,223 Weight: 4,462
Wheel Base: 106.5 in.

 

Fuel Tank Capacity:

94 liter (24.83-gallon)/117 liter (31-gallon)

Length: 184.8 in. Height: 73.4 in.
Std. Engine, (net HP):

OHV Six-cylinder 262 cid. (155) @ 4000 rpm

 

 

 

 

 

 

 

 

Opt. Engine, (net HP):

OHV Eight-cylinder 305 cid. (150) @ 4000 rpm

OHV Eight-cylinder 305 cid. (160) @ 4400 rpm

OHV Eight-cylinder 350 cid. (160) @ 3800 rpm

OHV Eight-cylinder 350 cid. (165) @ 3800 rpm

OHV Diesel Eight-cylinder 379 cid. (130) @ 3600 rpm

OHV Diesel Eight-cylinder 379 cid. (151) @ 3600 rpm

Rear Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)

Front Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)

Transmission (M):

SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH350 (2.52:1 First Gear)

TH700-R4 (3.06:1 First Gear)

 

Transfer Case (M):

NP208 (2.61:1 Low Range)

Transfer Case (A):

NP208 (2.61:1 Low Range)

Notes:

The 1985 Blazers had much wider body color panel between upper, and lower grilles, and the grilles had only a single horizontal bar intersected by seven vertical bars.  The headlight housing had more of a vertical look than last year's, although the rectangular lamps were stacked atop each other again.  An amber-colored parking lamp was standard on the bottom, but when halogen high-beams were ordered, the parking lamps moved behind the lower grille.

Blazers featured a steel half-cab with an integral roll bar built into the steel front compartment roof and lock pillar structures.

 

 

Year: 1984 Production Total: 39,329
Base Price: 10,819 Weight: 4,409
Wheel Base: 106.5 in. Fuel Tank Capacity:

24-gallon/94 liter (24.83-gallon)/31-gallon

Length: 184.8 in. Height: 73.4 in.
Std. Engine, (net HP):

OHV Six-cylinder 250 cid. (115) @ 3600 rpm

 

 

 

Opt. Engine, (net HP):

OHV Eight-cylinder 305 cid. (160) @ 4400 rpm

OHV Eight-cylinder 350 cid. (165) @ 3800 rpm

OHV Diesel Eight-cylinder 379 cid. (130) @ 3600 rpm

Rear Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)

Front Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)

Transmission (M):

SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH350 (2.52:1 First Gear)

TH700-R4 (3.06:1 First Gear)

 

Transfer Case (M):

NP208 (2.61:1 Low Range)

Transfer Case (A):

NP208 (2.61:1 Low Range)

Notes:

A bold new grille had a bi-level design with three black-finished horizontal bars, square headlamps in both sections (optional), parking lamps behind the bars on the bottom, and a yellow bow tie on the body color strip in the middle.

Only 4x4 models were available for 1984.

Fender badges now identified these trucks as K5 models.

Blazers featured a steel half-cab with an integral roll bar built into the steel front compartment roof and lock pillar structures.

 

 

Year: 1983 Production Total: 26,245
Base Price: 10,287 Weight: 4,426
Wheel Base: 106.5 in. Fuel Tank Capacity: 24-gallon/31-gallon
Length: 184.8 in. Height: 73.4 in.
Std. Engine, (net HP):

OHV Six-cylinder 250 cid. (120) @ 4000 rpm

 

 

 

Opt. Engine, (net HP):

OHV Eight-cylinder 305 cid. (165) @ 4400 rpm

OHV Eight-cylinder 350 cid. (165) @ 3800 rpm

OHV Diesel Eight-cylinder 379 cid. (130) @ 3600 rpm

Rear Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)

Front Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)

Transmission (M):

SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH350 (2.52:1 First Gear)

TH700-R4 (3.06:1 First Gear)

 

Transfer Case (M):

NP208 (2.61:1 Low Range)

Transfer Case (A):

NP208 (2.61:1 Low Range)

Notes:

The Blazer had a revised grille for 1983, it featured a blacked-out appearance.  Parking lights were moved from the bumper to bottom of the grille and the horizontal center-bar was finished in body color.

Blazers featured a steel half-cab with an integral roll bar built into the steel front compartment roof and lock pillar structures.

 

 

Year: 1982 Production Total: 24,514
Base Price: 9,874 Weight: 4,294
Wheel Base: 106.5 in. Fuel Tank Capacity: 24-gallon/31-gallon
Length: 184.8 in. Height: 73.4 in.
Std. Engine, (net HP):

OHV Six-cylinder 250 cid. (110) @ 3600 rpm

 

 

 

Opt. Engine, (net HP):

OHV Eight-cylinder 305 cid. (160) @ 4400 rpm

OHV Eight-cylinder 350 cid. (165) @ 3800 rpm

OHV Diesel Eight-cylinder 379 cid. (130) @ 3600 rpm

Rear Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)

Front Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)

Transmission (M):

SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH350 (2.52:1 First Gear)

TH700-R4 (3.06:1 First Gear)

Transfer Case (M):

NP208 (2.61:1 Low Range)

Transfer Case (A):

NP208 (2.61:1 Low Range)

Notes:

New for 1982 Blazers was a 6.2-liter (379-cid) Chevrolet-built diesel V-8 and four-speed overdrive transmission, both costing extra.

Blazers featured a steel half-cab with an integral roll bar built into the steel front compartment roof and lock pillar structures.

 

 

Year: 1981 Production Total: 23,635
Base Price: 8,856 Weight: 4,087
Wheel Base: 106.5 in. Fuel Tank Capacity: 24-gallon/31-gallon
Length: 184.8 in. Height: 73.4 in.
Std. Engine, (net HP):

OHV Six-cylinder 250 cid. (115) @ 3600 rpm

 

 

 

Opt. Engine, (net HP):

OHV Eight-cylinder 305 cid. (130) @ 4000 rpm

OHV Eight-cylinder 305 cid. (160) @ 4400 rpm

OHV Eight-cylinder 350 cid. (165) @ 3600 rpm

Rear Axle:

GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)

Front Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)

Transmission (M):

SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH350 (2.52:1 First Gear )

 

Transfer Case (M):

NP208 (2.61:1 Low Range)

Transfer Case (A):

NP208 (2.61:1 Low Range)

Notes:

Blazers for 1981 had an aerodynamically restyled front end.  The smoother new hood and fenders, together with a front bumper mounted air dam, were designed to improve fuel economy.  A new grille continued the ice-cube-tray look with 16 taller openings running across the Blazer between the stacked square headlamps.  A wide center horizontal molding - bright-finished with a bow tie in the middle - spanned the full width of the front end.

Rectangular parking lamps/turn signals were placed in the new front bumper, directly beneath the headlamps.

On the body sides, the belt-level feature line ran the length of the Blazer, and blended more smoothly into the fender edge at the front.  Two-tone paint treatments were now separated at the lower perimeter feature line.

Blazer 4x4 models had a new aluminum transfer case and automatic locking hubs.

A new front quad shock package was available.

Blazers featured a steel half-cab with an integral roll bar built into the steel front compartment roof and lock pillar structures.

 

 

Year: 1980 Production Total: 31,776
Base Price: 8,233 Weight: 4,429
Wheel Base: 106.5 in. Fuel Tank Capacity: 24-gallon/31-gallon
Length: 184.8 in. Height: 73.4 in.
Std. Engine, (net HP):

OHV Six-cylinder 250 cid. (130) @ 3800 rpm

 

 

 

 

 

Opt. Engine, (net HP):

OHV Eight-cylinder 305 cid. (130) @ 4000 rpm

OHV Eight-cylinder 350 cid. (165) @ 3600 rpm

OHV Eight-cylinder 350 cid. (170) @ 3800 rpm

OHV Eight-cylinder 400 cid. (185) @ 3600 rpm

Rear Axle:

GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)

Front Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)

Transmission (M):

SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH350 (2.52:1 First Gear)

TH400 (2.48:1 First Gear)

Transfer Case (M):

NP205 (1.96:1 Low Range)

Transfer Case (A):

NP205 (1.96:1 Low Range)

Notes:

Blazers had a new Argent colored grille with 33 square openings and new gauges with international symbols.

A Silverado package was now available and included rectangular headlamps, a chromed grille and larger parking lamps, plus custom cloth or Brahman-grain vinyl interiors.

The 305-cid and 400-cid V-8s were dropped.

A popular new option was styled aluminum wheels.

Blazers featured a steel half-cab with an integral roll bar built into the steel front compartment roof and lock pillar structures.

 

 

Year: 1979 Production Total: 90,987
Base Price: 7,373 Weight: 4,371
Wheel Base: 106.5 in. Fuel Tank Capacity: 24-gallon/31-gallon
Length: 184.8 in. Height: 73.4 in.
Std. Engine, (net HP):

OHV Six-cylinder 250 cid. (130) @ 3800 rpm

 

 

 

Opt. Engine, (net HP):

OHV Eight-cylinder 305 cid. (130) @ 4000 rpm

OHV Eight-cylinder 350 cid. (165) @ 3600 rpm

OHV Eight-cylinder 400 cid. (185) @ 3600 rpm

Rear Axle:

GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)

Front Axle:

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)

Transmission (M):

SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH350 (2.52:1 First Gear)

TH400 (2.48:1 First Gear)

Transfer Case (M):

NP205 (1.96:1 Low Range)

Transfer Case (A):

NP203 (2.01:1 Low Range)

Notes:

Blazers featured a steel half-cab with an integral roll bar built into the steel front compartment roof and lock pillar structures.

GM added a fuel door to the passenger side rear quarter panel, previously, they had external gas caps.

 

 

Year:: 1978 Production Total: 88,858
Base Price: 6,397 Weight: 3,928
Wheel Base: 106.5 in. Fuel Tank Capacity: 20-gallon/31-gallon
Length: 184.8 in. Height: 73.4 in.
Std. Engine, (net HP):

OHV Six-cylinder 250 cid. (115) @ 3800 rpm

 

 

 

Opt. Engine, (net HP):

OHV Eight-cylinder 305 cid. (130) @ 4000 rpm

OHV Eight-cylinder 350 cid. (165) @ 3800 rpm

OHV Eight-cylinder 400 cid. (175) @ 3600 rpm

Rear Axle:

GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)

 

Front Axle:

Dana 44 (8.5-in.  1.31 Axle Dia. 30 Spline)

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)

Transmission (M):

SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH350 (2.52:1 First Gear)

TH400 (2.48:1 First Gear)

Transfer Case (M):

NP205 (1.96:1 Low Range)

Transfer Case (A):

NP203 (2.01:1 Low Range)

Notes:

For 1978 the instrument panel trim and nameplate were changed.  There was a deluxe instrument panel option with black-textured center section for Custom Deluxe models, and bright brush finish for Cheyennes.

Also new was a redesigned rear compartment entry/exit system, a new rear folding seat, and a flatter floor panel behind the seat for extra leg room.  The frame was changed to position the body mounts outside of the frame to allow for the new rear seat design.

Blazers featured a steel half-cab with an integral roll bar built into the steel front compartment roof and lock pillar structures.

 

 

Year:: 1977 Production Total: 86,838
Base Price: 5,603 Weight: 4,268
Wheel Base: 106.5 in. Fuel Tank Capacity: 20-gallon/31-gallon
Length: 184.5 in. Width: 71 in.
Std. Engine, (net HP):

OHV Six-cylinder 250 cid. (110) @ 4800 rpm

 

 

 

Opt. Engine, (net HP):

OHV Eight-cylinder 305 cid. (130) @ 4000 rpm

OHV Eight-cylinder 350 cid. (145) @ 3800 rpm

OHV Eight-cylinder 400 cid. (175) @ 3600 rpm

Rear Axle:

GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)

 

Front Axle:

Dana 44 (8.5-in. 1.31 Axle Dia. 30 Spline)

GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)

Transmission (M):

SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH350 (2.52:1 First Gear)

TH400 (2.48:1 First Gear)

Transfer Case (M):

NP205 (1.96:1 Low Range)

Transfer Case (A):

NP203 (2.01:1 Low Range)

Notes:

For 1977 there was a restyled eggcrate grille with 15 openings (instead of 32) and dark gray metallic finish (instead of Argent Silver).

A new optional soft-top came in white, black, blue or buckskin.

Blazers featured a steel half-cab with an integral roll bar built into the steel front compartment roof and lock pillar structures.

 

 

Year:: 1976 Production Total: 74,389
Base Price: 5,365 Weight: 4,017
Wheel Base: 106.5 in. Fuel Tank Capacity: 20-gallon/31-gallon
Length: 184.5 in. Height: 71 in.
Std. Engine, (net HP):

OHV Six-cylinder 250 cid. (100) @ 3600 rpm

 

 

 

Opt. Engine, (net HP):

OHV Eight-cylinder 305 cid. (130) @ 4000 rpm

OHV Eight-cylinder 350 cid. (160) @ 3800 rpm

OHV Eight-cylinder 400 cid. (175) @ 3600 rpm

Rear Axle:

GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)

Front Axle:

Dana 44 (8.5-in. 1.31 Axle Dia. 30 Spline)

Transmission (M):

SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH350 (2.52:1 First Gear)

TH400 (2.48:1 First Gear)

Transfer Case (M):

NP205 (1.96:1 Low Range)

Transfer Case (A):

NP203 (2.01:1 Low Range)

Notes:

A major development of 1976 was a new body design, it featured a steel half-cab with an integral roll bar built into the steel front compartment roof and lock pillar structures.

Available at extra cost was a removable fiberglass-reinforced plastic roof that attached to the pickup box with 16 bolts.

 

 

Year:: 1975 Production Total: 50,548
Base Price: 4,998 Weight: 4,313
Wheel Base: 106.5 in. Fuel Tank Capacity: 20-gallon/31-gallon
Length: 184.5 in. Height: 71 in.
Std. Engine, (net HP):

OHV Six-cylinder 250 cid. (105) @ 3800 rpm

 

 

Opt. Engine, (net HP):

OHV Eight-cylinder 350 cid. (160) @ 3800 rpm

OHV Eight-cylinder 400 cid. (175) @ 3600 rpm

Rear Axle:

GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)

Front Axle:

Dana 44 (8.5-in. 1.31 Axle Dia. 30 Spline)

Transmission (M):

SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH350 (2.52:1 First Gear)

TH400 (2.48:1 First Gear)

Transfer Case (M):

NP205 (1.96:1 Low Range)

Transfer Case (A):

NP203 (2.01:1 Low Range)

Notes:

No major changes for the 1975 model-year.

Catalytic converters now standard on Blazers (Blazers produced in early 75 may not have catalytic converters).

The Blazer's single-unit body was joined to a heavy channel steel frame and had a completely removable fiberglass top.

 

 

Year:: 1974 Production Total: 56,798
Base Price: 3,577 Weight: 3,931
Wheel Base: 106.5 in. Fuel Tank Capacity: 20-gallon/31-gallon
Length: 184.5 in. Height: 71.5 in.
Std. Engine, (net HP):

OHV Six-cylinder 250 cid. (100) @ 3600 rpm

 

 

 

Opt. Engine, (net HP):

OHV Six-cylinder 292 cid. (120) @ 3600 rpm

OHV Eight-cylinder 350 cid. (145) @ 3600 rpm

OHV Eight-cylinder 350 cid. (160) @ 3800 rpm

Rear Axle:

GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)

Front Axle:

Dana 44 (8.5-in. 1.31 Axle Dia. 30 Spline)

Transmission (M):

SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH350 (2.52:1 First Gear)

 

Transfer Case (M):

NP205 (1.96:1 Low Range)

NP203 (2.01:1 Low Range)

Transfer Case (A):

NP205 (1.96:1 Low Range)

 

Notes:

New was a factory padded roll bar.

The limited-slip differential could be ordered with the full-time four-wheel-drive system.

The Blazer's single-unit body was joined to a heavy channel steel frame and had a completely removable fiberglass top.

 

 

Year:: 1973 Production Total: 44,841
Base Price: 3,200 Weight: 3,912
Wheel Base: 106.5 in. Fuel Tank Capacity: 20-gallon/31-gallon
Length: 184.5 in. Height: 71.5 in.
Std. Engine, (net HP):

OHV Six-cylinder 250 cid. (100) @ 3600 rpm

 

 

 

Opt. Engine, (net HP):

OHV Six-cylinder 292 cid. (120) @ 3600 rpm

OHV Eight-cylinder 307 cid. (115) @ 3600 rpm

OHV Eight-cylinder 350 cid. (155) @ 4000 rpm

Rear Axle:

GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)

Front Axle:

Dana 44 (8.5-in. 1.31 Axle Dia. 30 Spline)

Transmission (M):

SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH350 (2.52:1 First Gear)

 

 

Transfer Case (M):

NP205 (1.96:1 Low Range)

Dana 20 (2.03:1 Low Range)

Transfer Case (A):

NP203 (2.01:1 Low Range)

 

Notes:

The 1973 Blazers were radically changed in appearance from previous models.  Major styling features consisted of curved side glass, doors that opened into the roof line, and the elimination of roof drip rails.  Running along the belt line was a sculptured cove.  Along with the very wide and flat load box, it gave the new model very clean and distinctive lines.  A wider interior featured a powered, flow-through ventilation system.  A redesigned dash, with all instruments and controls placed in a semi-circular cluster within easy reach and view of the driver, was adopted.  The steering wheel was reduced in diameter and the wheelbase was lengthed from 104 to 106.5.

The 1973 Blazers had a full-time 4x4 system.

Those with the Cheyenne trim had a chrome circle on the rear fender.

The tailgate came two ways, with the open utility it was like the Fleetside Pickup's gate and when the optional hardtop was ordered, the gate had a manually-operated roll-up window, this eliminated the lift-gate that had been used in older tops.

New energy absorbing steering column.

The Blazer's single-unit body was joined to a heavy channel steel frame and had a completely removable fiberglass top.

 

 

Year:: 1972 Production Total: 44,266
Base Price: 3,145 Weight: 3,677
Wheel Base: 104 in. Fuel Tank Capacity: 23.5-gallon
Length: 177.5 in. Height: 68.7 in.
Std. Engine, (net HP):

OHV Six-cylinder 250 cid. (110) @ 4000 rpm

 

 

Opt. Engine, (net HP):

OHV Eight-cylinder 307 cid. (135) @ 4000 rpm

OHV Eight-cylinder 350 cid. (175) @ 3600 rpm

Rear Axle:

GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)

Front Axle:

Dana 44 (8.5-in. 1.31 Axle Dia. 30 Spline)

Transmission (M):

SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH350 (2.52:1 First Gear)

 

Transfer Case (M):

NP205 (1.96:1 Low Range)

Dana 20 (2.03:1 Low Range)

Transfer Case (A):

NP205 (1.96:1 Low Range)

 

Notes:

Blazer's, looked similar to the previous year's model, except that the border of the grille surround was no longer black-finished.

The Blazer's single-unit body was joined to a heavy channel steel frame and had a completely removable fiberglass top.

 

 

Year:: 1971 Production Total: 17,220
Base Price: 3,234 Weight: 3,677
Wheel Base: 104 in. Fuel Tank Capacity: 23.5-gallon
Length: 177.5 in. Height: 68.7 in.
Std. Engine, (net HP):

OHV Six-cylinder 250 cid. (110) @ 4000 rpm

 

 

 

Opt. Engine, (net HP):

OHV Six-cylinder 292 cid. (125) @ 3600 rpm

OHV Eight-cylinder 307 cid. (135) @ 4000 rpm

OHV Eight-cylinder 350 cid. (170) @ 3600 rpm

Rear Axle:

GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)

Front Axle:

Dana 44 (8.5-in. 1.31 Axle Dia. 30 Spline)

Transmission (M):

SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH350 (2.52:1 First Gear)

 

 

Transfer Case (M):

NP205 (1.96:1 Low Range)

Dana 20 (2.03:1 Low Range)

Transfer Case (A):

NP205 (1.96:1 Low Range)

 

Notes:

New, eggcrate grille.

Some sources say that the 4x2 version was introduced this year, although factory records show nearly 1,000 of these were made in model-year 1970.

The Blazer's single-unit body was joined to a heavy channel steel frame and had a completely removable fiberglass top.

 

 

Year:: 1970 Production Total: 11,527
Base Price: 2,955 (6 cid.) 3,050 (8 cid.) Weight: 3,677 (6 cid.)  3,807 (8 cid.)
Wheel Base: 104 in. Fuel Tank Capacity: 23.5-gallon
Length: 177.5 in. Height: 68.7 in.
Std. Engine, (net HP):

OHV Six-cylinder 250 cid. (110) @ 4000 rpm

 

 

 

Opt. Engine, (net HP):

OHV Six-cylinder 292 cid. (125) @ 3600 rpm

OHV Eight-cylinder 307 cid. (135) @ 4000 rpm

OHV Eight-cylinder 350 cid. (170) @ 3600 rpm

Rear Axle:

GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)

Front Axle:

Dana 44 (8.5-in. 1.31 Axle Dia. 30 Spline)

Transmission (M):

SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH350 (2.52:1 First Gear)

 

 

Transfer Case (M):

NP205 (1.96:1 Low Range)

Dana 20 (2.03:1 Low Range)

Transfer Case (A):

NP205 (1.96:1 Low Range)

 

Notes:

New grill with six groups of silver "dashes" above and below the horizontal aluminum center bar with Chevy's name across it.

The Blazer's single-unit body was joined to a heavy channel steel frame and had a completely removable fiberglass top.

A 4x2 Blazer was produced this year, but less than 1,000 were made.

 

 

Year: 1969 Production Total: 4,935
Base Price: 2,852 Weight: 2,947
Wheel Base: 104 in. Fuel Tank Capacity: 23.5-gallon
Length: 177.5 in. Height: 68.7 in.
Std. Engine, (net HP):

OHV Six-cylinder 250 cid. (110) @ 4000 rpm

 

 

 

 

Opt. Engine, (net HP):

OHV Eight-cylinder 307 cid. (135) @ 4000 rpm

OHV Eight-cylinder 350 cid. (170) @ 3600 rpm

OHV Eight-cylinder 350 cid. ( )

OHV Eight-cylinder 350 cid. ( )

Rear Axle:

GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)

Front Axle:

Dana 44 (8.5-in. 1.31 Axle Dia. 30 Spline)

Transmission (M):

SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)

SM465 4 spd. (6.55:1 First Gear)

Transmission (A):

TH350 (2.52:1 First Gear)

 

 

Transfer Case (M):

NP205 (1.96:1 Low Range)

Dana 20 (2.03:1 Low Range)

Transfer Case (A):

NP205 (1.96:1 Low Range)

 

Notes:

First production year for Chevrolet's entry into the expanding 4x4 off-road vehicle field.

An aluminum center piece, in the grille, was embossed with the Chevrolet name, it had integral, rectangular parking lamps at each end, next to its square headlamp housings. A large Chevrolet bow tie was at the front center of the hood.

The Blazer's single-unit body was joined to a heavy channel steel frame and had a completely removable fiberglass top.

Chevrolet production records show a model number and listing for a 4x2 Blazer, but indicate that none were built in this model-year.

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