What made the power difference in the 94-96 impalla SS (260hp), 93-95 Z (275hp), 96-97 Z (285hp) and the LT1 vettes (305hp).

Im not talking little changes like better intake or less restrictive xhaust.

Was there any changes in the heads or cam?

Thanks
Joe

 

Impy heads are made of cast iron wich flow better, but weight around 40-50 pounds more. The cam cam is similiar but its consider a bit milder, but even with a far more restrictive intake and exhaust still makes more torque than camaro cam. This is because more torque is needed to move the heavier B-cars (impys and such). The water pump is also different btu apart from that everything is preatty much the same.

 

I recently put in an LT1 from an impala on my trans am since i blew my engine. Everything si working great and the car feels faster than it use to. And it seems to get of the line alot better than it use to.

 

Thanks for the info.