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motor differances?

Old Jun 20, 2002 | 08:54 PM
  #1  
no_car_yet's Avatar
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From: newfoundland Canada
motor differances?

I almost had a car today. We went out look at a 91 trans am GTA, thinking it had a 350, and then when we were about to make an offer he said"yup, the 305 is pretty hopped up". I couldn't believe it was a 305, it sounded awesome. It was an auto 305 so it only got 205hp. The guy had spent some money on it, but i want to know the differance it the 5-speed 305 and the automatic 305, that give the 5-speed 25 more hp. I thouht i once heard that it was differant cams in them. So does that mean that if i put an aftermarket cam in it, it would regain the lost hp, and then some?

BTW; still thinking about getting the car and making it a standard. Its in great shape!
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Old Jun 20, 2002 | 09:12 PM
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Mark A Shields's Avatar
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Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
The G92 option with 305/5spd I believe is where the HP difference comes in.

1990-1992
305 5spd / 305 AT 10088155* .350 .384 179 194 109.0
305 G92 5spd / 350 AT 10111773* .413 .428 202 207 114.5 (116/-116)

Last edited by Mark A Shields; Jun 20, 2002 at 09:15 PM.
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