Engine and Trans combo upgrade? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BamaDave · 06-30-2010, 01:23 AM

What is the best late model engine and trans upgrade for my 86 GMC S.C. I have read alot on here about this and everyone seems to be different. I also don't know alot about the later model injection motors. I read on the S&P website about installing a LT4 out of a Vette would basically a bolt in except for the electrical and trans. I need to here some opinions, maybe some advice.

BigBlocksRule · 06-30-2010, 07:27 AM

Forget the LT1. Pain in the ass, you'll make as much power with a similar Vortec combo.
Snag a 4-bolt main hydraulic roller block, stroke it, add Vortec heads with basic bowl work and good springs, cam in the 22x - 23X range and some long tube headers.
Buy stock in your favorite tire company.

06-30-2010, 01:23 AM	#1
BamaDave Registered User Join Date: May 2010 Location: Shoals, AL Posts: 299	Engine and Trans combo upgrade? What is the best late model engine and trans upgrade for my 86 GMC S.C. I have read alot on here about this and everyone seems to be different. I also don't know alot about the later model injection motors. I read on the S&P website about installing a LT4 out of a Vette would basically a bolt in except for the electrical and trans. I need to here some opinions, maybe some advice.

06-30-2010, 07:27 AM	#2
BigBlocksRule Registered User Join Date: Jun 2008 Location: Lubbock, TX Posts: 2,047	Re: Engine and Trans combo upgrade? Forget the LT1. Pain in the ass, you'll make as much power with a similar Vortec combo. Snag a 4-bolt main hydraulic roller block, stroke it, add Vortec heads with basic bowl work and good springs, cam in the 22x - 23X range and some long tube headers. Buy stock in your favorite tire company.



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