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Old 11-13-2017, 08:17 PM   #23
truckster
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Location: Orem, Utah
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Re: What GM create engine to buy for 3/4 ton 72 C20

Quote:
Originally Posted by jocko View Post
Copy on the flexplate, didn't realize they came with an index, so that solves that, thank you. But I don't think you can put a pre-Vortec intake manifold on the L31 can you?
Nope, that's why I said he'd need a new intake. The Vortec heads use an intake with 8 bolts, and the bolts are vertical rather than angled into the head.
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