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Old 10-01-2008, 12:18 PM
Posted in reply to supersize75k5's post starting "option..."
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dyeager535
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Yeah the S10 one is...innovative? All it would take is some tall grass to screw that up though lol.
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"1985" K5: Vortec Headed Roller 355/MAF TPI/32 spline 465/205/10B-14SF/3.42's/33". Will be converted to MAP TPI in the future.

1987 K5: 350/TBI/700R4/208/10B F/R/3.73's/31" Someday will assimilate the "1985" drivetrain.

The answer to your carburetor problem is fuel injection.
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Old 10-01-2008, 01:05 PM
Posted in reply to dyeager535's post starting "Yeah the S10 one is...innovative? :)..."
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pennsylvaniaboy
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i did a vortec conversion this past winter. a few things to consider...

1. upgrade the rad to new one

2. intake piping- you need to mass air sensor

3. the fly wheels are dif. so if you have an auto 5.3/6.0 you will need a corresponding flywheel. the one from your 350 wont work.

4. you can ditch the vss. it did not effect my motor. i got Jims Performance to do all my harness/ECM work.

5. Good luck you wont regret it!!!
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Old 10-01-2008, 02:52 PM   #13
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5.3 with a 465 hooked to it

I needed a custom flywheel from AA and the pilot bushing spacer then i just used a standard 465 clutch. I am using a stock hydro bell housing and i did run into issues with the drives side manifold hitting the slave cylinder, i used ls1 manifolds and took care of this.

For VSS i have a old cable driven speedo so i used a pluse generator from Dakota digital and just did the calculations for the Pluses per mile and Flashed my computer with that value. Stock is 40 plus per drive shat revolution, but you can use other values, i am using 8 pluses per revolution, the only down side is there is less resloution of distance covered, but not having ABS and the other Speed sensative systems it does not matter
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Old 10-01-2008, 02:53 PM   #14
1979jimmy350
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Quote:
Originally Posted by pennsylvaniaboy View Post
i did a vortec conversion this past winter. a few things to consider...

1. upgrade the rad to new one

2. intake piping- you need to mass air sensor

3. the fly wheels are dif. so if you have an auto 5.3/6.0 you will need a corresponding flywheel. the one from your 350 wont work.

4. you can ditch the vss. it did not effect my motor. i got Jims Performance to do all my harness/ECM work.

5. Good luck you wont regret it!!!
You need VSS, yes the truck runs with out it but you are staying in the idle tables so as far as your computer knows you are sitting still reving your engine, so you are not going to get the best performance and economy
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1976 K-5 5.7L built Whipple Charged LS motor 465 205 D60 Lock Right 14 Bolt FF Detroit 4.11"s 52's in the front, 37 Hummers on Beadlocks

DD/Tow Rig 2005 GMC Sierra 2500 HD Dmax
Project LS4 87 Fiero GT
build thread
http://coloradok5.com/forums/showthread.php?t=215026

LS install
http://coloradok5.com/forums/showthread.php?t=249014



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Old 10-02-2008, 12:16 AM
Posted in reply to 1979jimmy350's post starting "You need VSS, yes the truck runs with..."
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Its ok without the VSS,
it basically bumps up the idle when you're coming to a stop so it doesn't stall out.
With a cam and no vss this will be a lot more appearant.

Nice to see more of these swaps happening on here.
i found my blazers 04 6.0L back in '05 and swapped it in when that was the latest and greatest engine... now thats just old school gen3 stuff.. everyone's swapping gen4 ls2,l92,ls3,ls7 etc. now days, well over 400hp. pssheessh.
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Old 10-02-2008, 01:51 PM
Posted in reply to Ryan B.'s post starting "Its ok without the VSS, it basically..."
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sandypants
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well i started this because im parting out my 89 k5. it has the sm465 and a 241. as far as putting it in i am just concerned if it will (the new 5.3 or 6.0) bolt right up to the trans. if i had found a nv4500 with the low first gear i would perfer to use that but those are scarce where im at in northwest FL. but besides fuel and computer/wireing, is there anything i should know about before i mate the two together?
sm465 from my 89 and an 04 or later should just bolt up...? thanx for the help sandypants
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Old 10-03-2008, 10:28 PM
Posted in reply to sandypants's post starting "well i started this because im parting..."
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Yep, call advance adapters for the McCloud adapter flywheel, and you'll need a pilot bushing adapter from them for the gen3 engine as well.
Then you order a factory sbc pilot bushing, and a factory sbc-sm465 style clutch, you might have to enlarge 3 of the bolt holes in the clutch pressure plate just a hair..
and that should work for a sm465 or a nv4500. the rest is the bellhousing. a stock 465 bellhousing will work fine. just the engine doesn't have a provision for the 2 oclock bolt hole. not a big deal.
not sure about a factory nv4500 bellhousing, because they are hydro on the passanger side and might interfere with the front driveshaft.
I made a custom nv4500 hayes scattersheild bellhousing.
I had a machine shop modify an old school muncie 4 speed scattersheild. had to have the machine shop open up the hole in the scattersheild bellhousing where the tranny input shaft bearing retainer seats into it... then you can drill the 4 holes for the correct bolt pattern of the nv4500.
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Old 10-04-2008, 11:22 AM
Posted in reply to Ryan B.'s post starting "Yep, call advance adapters for the..."
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Thanx for the help. well all need to do is find me a 5.3 or 6.0.... but it shouldn't be too hard i think.. i will keep everybody posted. if anybody has anything to add let me know thanx sandypants
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