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General Site Info => General Discussion => Topic started by: SUX2BU99 on July 02, 2008, 12:27:58 pm

Title: Pre-87 heads on 91 TBI 350
Post by: SUX2BU99 on July 02, 2008, 12:27:58 pm

Hey guys, I'm trying to sell the heads I took off my 350 and a guy with a stock 91 Silverad with 350 TBI is interested in them. I know about the centre-bolt thing, but besides valve cover mounting, is that the only difference? My old heads are 1971 3986336 castings with 76cc chambers, 194/150 valves. Will these bolt-on without any problems to his 91 350? I'll toss in a pair of Edelbrock chrome valve covers for him too.

Thanks.

Title: Re: Pre-87 heads on 91 TBI 350
Post by: dumbucket1 on July 02, 2008, 12:32:07 pm

I cant really give you real specifics but I just bolted 80-86 heads onto a 87 305 with no issues at all. Just had to change intakes.

Title: Re: Pre-87 heads on 91 TBI 350
Post by: VileZambonie on July 02, 2008, 12:54:14 pm

The four center bolts on the intake manifold will have to be elongated to match up.

Title: Re: Pre-87 heads on 91 TBI 350
Post by: SUX2BU99 on July 02, 2008, 01:08:32 pm

Ah okay, yeah so unless he wants to also buy an aftermarket TBI-compatible intake, then these may not be best for him unless he doesn't mind grinding on some holes. Thanks.