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Old 04-08-2013, 09:50 PM
83CamaroZ28 83CamaroZ28 is offline
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Gathering more info on the motor that came with my 83 Camaro..

So I bought my 1983 Camaro about 2 months ago. Car was running like crap. Did a full tune up and got some casting numbers from it.

Im a big 3rd gen Fbody guy. My experience is mainly with L98s, LB9s, L03s and LT1 (93-97) since I swapped in a 97 LT1 into my old 86 Firebird.

Anyways, Figured it would have the 5.7L stamp on the back behind the driver side head but only found 3970010. Heads are 3973487X with what looks like G82 under it. It had a Edelbrock Sp2p intake which I swapped out for a Performer but ended up being warped, so I slapped on a Holley Street Dominator 300-38. Carburetor is a Holley with 6619-1 stamped on the horn. Which seems to be a 4160 if im right.

Car runs very good. My question is basically what do I have here. Car pulls very good. Its behind a Th350C and what is supposed to be 4.11s but I have yet to confirm this.

Here are my questions:

Cyl #1 seems to have a bad valve seal, I get the occasional smoke on start up on a random day. What would be the correct seals for these heads?

What would be a decent cam to put in? Street cam that is

Any general info would be great. This motor seems to be running very good and compareable to my old L98s.
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