LE9 305 Horsepower
#1
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Car: 87 Firebird
Engine: Mildly Built 350 SBC
Transmission: T5 5 Speed
Axle/Gears: 3.23
LE9 305 Horsepower
Just curious on what the typical horsepower is. I've got one in my car from an 86 c10 without smog and of course I ran an electric fan has about 50k miles right now I plan to get a 350 or 383 as I want more power but curious on cheap power increases and what the horsepower they typically get is.
Picture of the motor.
Picture of the motor.
#2
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Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Re: LE9 305 Horsepower
150 HP or so stock. Put some better springs in the heads, Summit K1103 cam set, headers and 3in exhaust and you may get 240 HP.
#3
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Re: LE9 305 Horsepower
86 C10 305 factory is
165 hp (123 kW) @ 4400 RPM 240 lb⋅ft (325 N⋅m) @ 2000 RPM
Probably a fair amount less now
165 hp (123 kW) @ 4400 RPM 240 lb⋅ft (325 N⋅m) @ 2000 RPM
Probably a fair amount less now
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Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: LE9 305 Horsepower
Intake manifold/Headers and smog removal is worth about 40 hp and similar torque.
Same 305 in an 80s boat without emissions junk, higher rise intake manifold, and free flowing exhaust is 230 hp.
Last edited by Fast355; 05-01-2018 at 07:24 PM.
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