Jack said:
88958602 GMR 350/350 Circle Track Engine
Great racing power at a reasonable cost (350 HP at 5000 RPM _ torque 390 @ 4000 RPM)
This is a factory sealed crate engine package, complete from high rise dual plane intake manifold, stamped steel valve covers with racing style breathers, and 8 quart single kick-out circle track racing oil pan.
The 350 engine is a great value with the nodular cast iron crankshaft, iron vortec heads with 1.94"/1.50" valves, flat tappet hydraulic lifters, and HEI distributor.
The base engine is a 330 HP 350ci, with the following parts: P/N 10105123 4 bolt iron block
P/N 14088527 Nodular cast iron crankshaft
P/N 10108688 PM rod
P/N 12361371 Cast aluminum piston
P/N 24502476 Camshaft with hydraulic flat tappet lifters
P/N 12558060 Iron vortec head
P/N 12366573 High rise dual plane intake manifold
So ... even a 9:1 CR L82 w/ a good cam, headers & tuneup can do even more.
For further enlightenment I suggest following: go to local circle track pits ... while there: keep your ears-eyes wide open & comments to a minimum (except to volunteer for grunt work) ... while there: you can learn a lot, have a lotta fun & make good friends ... who knows ... you might catch the race bug to own/drive yourself. Don't believe everything you see on TV or net ... not even this. Nothing, NOTHING beats eyes-on, hands-on proof!
Unless the parts are
exactly the same as in the L82
AND all brand new, then I'd give the L82 upgrades credibility. Different heads and intake on the L82 versus the engine above can make that difference in calling into question. Plus, we're talking an L82 engine that likely has some miles on it (being from 1979 and all). Although that's not as big a factor if everything was rebuilt internally (new seals, rings, gaskets, etc.) On top of that, the newer heads even if they are the same design, probably flow better due to better manufacturing abilities and the inherant tolerances that come from that. And the stock L82 intake manifold certainly ain't no big flower of air, at least not compared to a dual-plane hi-rise on the engine above!
I'm certainly not denying that a 350ci can make some power...tons of power! The GM 350 is a killer engine. Note, I have the ZZ4, so I'm not ignorant to the 350's abilities/capabilities with even minor tweaks and mods. But hey, he's got the dyno graph to prove his numbers. Plus, he said there was work done to the engine before he got it. So there could be different heads, pistons, bores, crank, whatever! If the dyno log says 340, then 340 it is! That's really all that matters in the grand scheme of things. I just don't believe that if you take an L82 from 1979 with miles on it (or not!) and simply slap in a different cam and some headers that you are going to generate an additional 95-115 hp as stated. By that point, you're talking the hp of my ZZ4, and that's more than just an L82 with cam an headers (not taking tq spec into account)
As for spending some time at the tracks? Hell, I was just about born into SCCA. I probably spent the first 12 years of my life at Mid-Ohio, Nelson Ledges, and a couple weekends at Sebring and Elkhart Lake. Besides both my grandfather and father being drivers, my father was also a driving instructor for SCCA. We had our own car dealership when we were racing, showroom stock and formula. (At one time, my family had THE ONLY new car dealership in ALL of Cleveland proper!) So yeah, I grew up in the pits and at the track. After SCCA, he got into circle track racing. All paved oval, no dirt. But by and during that time, I wasn't much into the circle track scene, so my interest waned. It wasn't until years later that I really got interested in cars again. So I'm kinda learning all over again.
Peace!