trying to figure out this engine
Thread Starter
Instructor
Joined: Apr 2006
Posts: 174
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From: Wallaceburg Ontario
trying to figure out this engine
The '79 Vette I bought has a 350 in it that I know very little about. The car is an L-48, but it's got a few aftermarket parts on it here and there. The head casting #s are 333882, which Mortec describes as 1974-80 heads for 350s and 400s. It has 76 cc combustion chambers, which I imagine makes for a low compression ratio in the neighbourhood of 8:1 (although I don't know if it's got aftermarket pistons or not, a shaved deck, etc.). Mortec does not state the valve sizes; 333881 heads apparently have the 2.02/1.60 valves, but the 333882 just has a blank in that column. Does anybody know what valves these heads have? Anyway, the motor has a Holley Contender intake, a Q-jet and what appears to be a decent set of headers. The cam? I have no idea. In short, I'm wondering what kind of power I can get outta this thing without opening it up. Guess I'd have to figure out the cam's specs somehow. Bottom line; with my first ever Vette, it doesn't look TOO hard to work under the hood with the small block in place. I'm not so sure that would be the case if I put in the 454 I'm building. Decisions, decisions...
