horse power rating on stock LT1

[DRCE]

Originally Posted by D Rock

Sure why not. LT1s are fuel injected and with twins you can have 400 rwhp on 6psi. After all you said you aren't really looking to race the car or dog it, so as long as the motor has a good safe tune then it should last at low boost.

6psi if probably the limit you'd want to use on a stock short even with a safe tune a full point fat. The oem lt1 pistons are known to cracking ring lands under boost.

[HAULNSS]

Here are some numbers FWIW.

My Impala has 177k miles on it and dyno'd (at the wheels) 286 rwhp 335 rwtq. It only has tri-y headers, cold air intake, underdrive pullies, and a tune for 92 octane. The valvetrain is all stock. That is it.

Some friends have a similar setup with the GM Hot Cam and getting in the 320's. Another friend has a 383 CID with ported stock aluminum castings and a mild cam which is putting down 398 RWHP and is very driveable.

The Impala's came with the iron head LT1 and a little less aggressive cam, so they were rated at 260hp (crank) by the factory.

Like a lot of engines, some headwork and a decent cam will really wake these things up. It is ju$t a matter of how fa$t your ca$h i$.

Randy

[comp-spec]

I have a 96 lt1 high miles I drive hard all the time, race it evey mouth a few times at the track.It has a vortec blower and nos all stock other then that (injectors programing exhaust) puts down 480 rwhp and runs 11.90 at 120 full weight.Very imprest with the lt1 motor like i said im not easy on this car.