Anyone know any details about this? I heard someone did it and gained 25rwhp on a BONE STOCK LT1 vette. Also, does anyone know anyone who does it?

 

I dont think 25rwhp on a stock set up, mabey on a very modified set up it may be possible. I think they are extrude hone ind.

 

I do not beleve 25 hp was gained with EH on the Lt1, for one thing the runers are so short one could polish them by hand with out any problems at all, paying a few hundred for EH would be are real waste of money on a LT1.

 

We'll see....my friend w/a 383 is going to do it and tell me his results.