Head id numbers

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Apr 20, 2010 | 09:43 PM

Mod75

Thread Starter

Race Director

Joined: Jan 2007

Posts: 10,663

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From: Danville Illinois

2025 Corvette of the Year Finalist - Modified

2024 C3 of the Year Winner - Modified

2021 C3 of the Year Finalist - Modified

2019 C3 of Year Finalist (appearance mods)

Head id numbers

These heads have been on for about 32 years give or take, two valve jobs, hardened exhausts seats. The usual valve job stuff.

I would like to know what they came from. What size valves etc.

Drivers side 3749765
Pass side 3932461

Any help welcome, or point me in the right direction to get the facts.

Last edited by Mod75; Apr 20, 2010 at 10:24 PM.

Apr 21, 2010 | 02:38 AM

avner

Burning Brakes

Joined: Nov 2006

Posts: 954

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2022 C3 of the Year Finalist - Modified

Pass side 3932461 - Application 1969 Corvette 350 300/350hp 62cc 1.94/1.50, 2.02/1.60
Driver side should be 3872765
http://corvettec3.ca/casting.htm

Avner

Apr 21, 2010 | 04:17 PM

Rich's'78

Racer

Joined: Nov 2004

Posts: 485

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From: Oakville ON

Good site but the '78 and '79 L-82s are called L-48s.

Apr 22, 2010 | 06:15 AM

vettehardt

Burning Brakes

Joined: Oct 2003

Posts: 1,090

Likes: 74

From: New Carlisle IN

Are we talking head numbers here or exhaust manifold numbers? The numbers listed don't correlate to any heads I can find. The drivers side doesn't match anything, but the passanger side matches an exhaust manifold number from 70-72 vettes.
Manifolds are down toward bottom:
http://www.nastyz28.com/sbcmenu.php
Heads:
http://www.nastyz28.com/sbchevy/sbch.php

Apr 24, 2010 | 02:00 PM