383 LT1 as a daily driver?
11-15-2004, 03:34 PM
#31
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Join Date: Sep 2004
Location: Hot Springs, Arkansas
Posts: 84
Re: 383 LT1 as a daily driver?
I had a carborated 383 in a 87 IROC that got about the same. It was useless though because I couldn't keep U-joints or drive shafts in it. Slung a few driveshafts on local cruise nights.
11-15-2004, 09:12 PM
#32
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Join Date: Oct 2002
Location: Upstate NY
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Re: 383 LT1 as a daily driver?
Originally Posted by bo3abd
the block will be decked and blue printed. i have edelbrock heads ( ported). lt4 intake ported and matched to the heads.cc 306. 58mm TB. shorty headers. and other bolts on.
the guy in the machine shop told me to expect 500+ RWHP but i think it will be less. what do u guys think?!?!
the guy in the machine shop told me to expect 500+ RWHP but i think it will be less. what do u guys think?!?!
He may change his tune..or refuse to build your engine. Oh, and don't run it on his dyno. Choose and independent shop to test it. I'm in the 420rwhp or so camp (M6) if everything is pretty much right on. Maybe 20-30 more with a custom valvetrain, assuming the heads have a decent flow curve.
11-15-2004, 09:23 PM
#33
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Join Date: Jul 2004
Posts: 42
Re: 383 LT1 as a daily driver?
Originally Posted by OldSStroker
Tell the "guy in the machine shop" you'll pay him based on how close your engine dynos to 500 rwhp. If it only makes 400rwhp you'll pay him 400/500 or 80% of what he quoted. He may change his tune..or refuse to build your engine. Oh, and don't run it on his dyno. Choose and independent shop to test it.
I'm in the 420rwhp or so camp (M6) if everything is pretty much right on. Maybe 20-30 more with a custom valvetrain, assuming the heads have a decent flow curve.
He may change his tune..or refuse to build your engine. Oh, and don't run it on his dyno. Choose and independent shop to test it. I'm in the 420rwhp or so camp (M6) if everything is pretty much right on. Maybe 20-30 more with a custom valvetrain, assuming the heads have a decent flow curve.
i would like to be in the range u mentioned more or less. i'm planning to upgrade my nitrous system to a 300 shot instead of the 150 i have right now but i think it's too risky.
11-15-2004, 09:45 PM
#34
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Join Date: Oct 2004
Location: Costa Mesa, CA no more!
Posts: 236
Re: 383 LT1 as a daily driver?
Originally Posted by rskrause
There's lot of cam info here. It's a little unfair to ask Bret because cam design is one of the things he does for a living. If you do a search you will find a lot of threads about cams.
Rich
Rich
11-15-2004, 09:48 PM
#35
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Join Date: Oct 2004
Location: Costa Mesa, CA no more!
Posts: 236
Re: 383 LT1 as a daily driver?
Originally Posted by OldSStroker
Tell the "guy in the machine shop" you'll pay him based on how close your engine dynos to 500 rwhp. If it only makes 400rwhp you'll pay him 400/500 or 80% of what he quoted. He may change his tune..or refuse to build your engine. Oh, and don't run it on his dyno. Choose and independent shop to test it.
I'm in the 420rwhp or so camp (M6) if everything is pretty much right on. Maybe 20-30 more with a custom valvetrain, assuming the heads have a decent flow curve.
He may change his tune..or refuse to build your engine. Oh, and don't run it on his dyno. Choose and independent shop to test it. I'm in the 420rwhp or so camp (M6) if everything is pretty much right on. Maybe 20-30 more with a custom valvetrain, assuming the heads have a decent flow curve.
it seems like "machine shop guys" will do everything (include make promises) except guarantee their products
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