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sorry for the problem
a ASA ls1 was a standard that was made for racing years ago. they all made the same hp and was sealed so teams could not make changes.
that all i know
i just wonderd what was the diferent between them
Yeah the ASA thing was a "spec" motor. All the American Speed Association teams had to run it, sealed, couldn't modify it in any way whatsoever. They only did that for a couple of years.
I don't know exactly what it was though. I'd suspect, just as a guess, that it had the "ASA cam" in it, with springs to match. Not sure what heads were on it. Seems like that was before rect-port heads came out IIRC. Been a long time so memory fades even as to when it was exactly, maybe early 2000s. Maybe their web site would tell you. Couldn't tell you about the HP either, but based on an otherwise stock LS1 with that cam, with reasonable attention to build detail, probably 450 or so, at a guess.
FWIW - my 383's block was machined by one of the original ASA series machinist back in 2008. From what i gathered the key difference was the ASA engines were carefully stress relieved, balanced & blueprinted to exact spec for consistency & durability in racing. In other words precision machine work. As the others mentioned there were probably valve train upgrades & cam, oil control etc upgrades for the racing series.
here is a thought i watch a lot of u tube, and gm crate engines according u tube a LS1 would make a 415 hp with the way gm test engines. the slp black wing intake and slp exhaust is suppose to make 345hp. would make about 390 at the crank. now i believe slp does a partial tune when the car is in the shop. math supports this. a 3 inch exhaust pipe = 2x2 exhaust. or a cross section area 7.065 sqr inches {r x r x 3.14 } now a 2 inch pipe = 3.14 again ( r x r x3.14 ) so a daul exhaust would eqaul 6.28 sqr inches which is enough to support 300hp. . now a single pipe may scavege better that a daul. no proof of that.
the reason i am saying all this is if LS1 makes 390 hp then tha asa ls1 must make about 460hp
In the first link link in post #8 the author of the article said:
"When everything was said and done these engines had 430 bhp and 430 ft-lb of torque. They used a more aggressive camshaft and higher quality valve springs. In addition the engines all used a dry sump oiling system. In 2000 these engines were sold to the ASA teams for $12,000."
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