CK5 - The Full-Size GM Off Road Community

Recently I cracked my cylinder head, but have yet to see if it's damaged beyond repair. I've heard it can be fixed w/o dropping a whole new engine. Is this true? Depending on costs, I may repair the one I have now, drop a new 6.2 in the Blazer, or drop a new chev. 350 in it. The Blazer w/ 4" lift sitting on 33" will be moved to our beach house where it will be used seldomly, about 6 weekends a year. Which engine( if either) will be more reliable at cranking up after months of sitting. I would like to keep a 6.2 'cause we'll be pulling a boat with it. Would i have to swap in any adaptors to put in a 350 if it was built originally with a 6.2. Thanks for any advice to any of the questions!

personally i would put in the 6.2L. the guy that i bought my 6.2 blazer from used it every now and then. I think with a diesel there are less components that you would need to check after a month or two of sitting. so I would go with a diesel for sure. just my opinion.
sergio

Make sure if you decide to keep the diesel that you use a quality fuel-stabilizer in the tank if the truck is going to sit for a while at a time..............

If I understand you correctly(that your head is cracked), all you have to do is change your head. Do both while you're at it!!!! As far as I can see, the job would be a lot cheaper than installing a new motor...............





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You say it's cracked but where? Are you loosing coolant out the exhaust? I ask because cracks between the intake and exhaust valve on the end cylinders are pretty normal (esp number 8) and usually benign. There is a kit available to ream and sleeve the coolant passage between the end cylinder valves. Not sure who makes it try kennedydiesel.com they're 6.2 savy.

Real trucks don't have spark plugs!

hey Texan, I replaced both my heads a couple months ago in the truck. It wasnt that hard at all, I also bought reman heads for $300 a piece down there in texas, shipping was $15 no core charge. If you need a number let me know. Tybee

1984 GMC Jimmy 379 diesel, 700R4, 3.73s, 31 x10.50 x 15