Let's say you have a stock 2002 Trans Am. Full aftermarket exhaust (headers, y-pipe, catback) would put you a little over 50rwhp. Headers alone are 25-30hp. A dynotune is highly recommended after installing full exhaust to maximize performance gains and to make your car run smoother.
rated at about 320 but it's more like 350
310 for the LS1, 325 for the Ram Air (WS6) models.
lt1 has about 295 stock at flywheel, ls1 has about 305
there is no such thing as a 1994 ls1. the ls1 didnt come out until 1998. in 1994 they had the LT1 which would have had 240 crank hp The LS1 motor actually first came out in 1997 for the C5 Corvette. The 1994 F-bodies with the LT1 were rated at 275hp at the flywheel.
Visually they are virtually identical, but the LS1 in 2002 had 310 hp vs 305 in 2000, and in 2002 you couldn't get the Ram Air WS6 package.
305 rwhp
305 Stock to flywheel.
210 HP- 285 HP LS1 Engine 300 HP SS and Police setup
305-325 stock hp
A stock 5.7 liter LS1 engine in the 2000 Camaro Z28 makes 285 Rwhp. That equates to about 325 Hp at the flywheel. Camaro LS1 engines were underrated from the factory at 305 Hp at the flywheel.
The base LS1 had 305 hp, Ram Air (WS6) models had 320.
Advertised: 1998 Trans Am = 305HP 1998 Trans Am WS6 = 325HP The truth is any f-body LS1 should be rated at 345HP. GM under-rated that motor.