1979 C10 5.7 Diesel advice - The 1947 - Present Chevrolet & GMC Truck Message Board Network

frenchy51 · 10-30-2019, 04:09 PM

I bought a fairly clean rust free '79 C10 Scotddale with an OK running 5.7 diesel motor. It needs a trans rebuild but engine seems to run fine.
I plan on doing a body on restoration. My question is-should I ditch the 5.7 Diesel and go 350 gas (or LS)? I've heard bad things about the 5.7 "Oldsmobile" Diesels. I've also heard many were replaced with the "DX" replacement diesel that has a better rep. How do I tell if mine is the original 5.7 Block or DX? AND- would I be better off to scrap the Diesel and just go Gas? Thoughts? Thanks

10-30-2019, 04:09 PM	#1
frenchy51 Registered User Join Date: Jun 2014 Location: Orland, Nor-Cal Posts: 617	1979 C10 5.7 Diesel advice I bought a fairly clean rust free '79 C10 Scotddale with an OK running 5.7 diesel motor. It needs a trans rebuild but engine seems to run fine. I plan on doing a body on restoration. My question is-should I ditch the 5.7 Diesel and go 350 gas (or LS)? I've heard bad things about the 5.7 "Oldsmobile" Diesels. I've also heard many were replaced with the "DX" replacement diesel that has a better rep. How do I tell if mine is the original 5.7 Block or DX? AND- would I be better off to scrap the Diesel and just go Gas? Thoughts? Thanks Attached Images __________________ 1972 Highlander PAC B 400BB-SOLD 1974 K5 Blazer-6.0 swap 1974 C20 Long Bed 454 1977 GMC HeavyHalf several adopted orphans



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