How bad are our stock heads?

i cleaned mine up when building the motor (gasket matched them on the intake side only, and matched the lower intake as good as i could). Cant really tell you if there was any kind of 'noticeable' difference since i never owned the car when it had a running motor.

It does make about 2lbs of boost less then 'most' stock 89-93 SC's that ive seen...which id imagine was from opening up the heads some.
 
From what I've learned from searching the forums, hp gains are directly related to what mods are done to the motor. Do a good search, you'll be glad u did.
 
Last edited:
Back
Top