GM Performance Parts ''Base'' 350 HO Crate Engine
05-17-2003, 07:06 PM
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GM Performance Parts ''Base'' 350 HO Crate Engine
i was thinkin bout getting the GM Performance Parts ''Base'' 350 HO
and it says it produces 330 hp, it dosent have a carb, manifold, dristriuter and stuff, i was wondering how much hp i could expect to see if i put a tpi setup on it.
and it says it produces 330 hp, it dosent have a carb, manifold, dristriuter and stuff, i was wondering how much hp i could expect to see if i put a tpi setup on it.
05-18-2003, 07:58 AM
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Car: 1987 Black IROC-Z (SOLD)
With a TPI you will have about 250 HP or less . That engine was Dyno'd on a engine stand with a Carb and no Drivetrain loss calulated. So don't look for that high of a number.
05-19-2003, 01:54 PM
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
The only TPI base available for Vortec heads (to the best of my knowledge) comes from Scoogin-Dickey, a dealer in Lubbock, Texas. Here's their site for the base http://www.sdpc2000.com/htm/vortec_tpi.html . They were at 300 with aftermarket runners and otherwise stock TPI setup (they don't say that on this site, but the use of aftermarket runners was confessed in a magazine article about a year ago). Took a cam and rocker change to get up to the carb 330 HP value (note the use of the electric water pump on the dyno - cheaters!).
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