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Old 09-10-2016, 12:06 AM   #3
71CHEVYSHORTBED402
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Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,385
Re: What are these and what for?

Quote:
Originally Posted by ck5566 View Post
Looks like a water port. What engine is it, my guess a V6?
402. The heads came off a 396. Actually more better heads. 402 had smaller ports I hear, 8.5/1 Vs 10/1 compression if I remember right. Come to think of it, that MIGHT be the difference where there are 400 badges with 396 blocks.
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Tony

71 Custom Deluxe, SWB, 2WD, 402, A/C.

I developed an assembly guide (kit) for restoring this truck from the ground up, complete with details including full hardware descriptions. Much of the info. applies to all 67-72 GM. My build thread, with some info. about the assembly kit https://67-72chevytrucks.com/vboard/...d.php?t=730025

Last edited by 71CHEVYSHORTBED402; 09-12-2016 at 11:19 PM.
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