I used these on my twin turbo LT1. Decent but MLS is far superior. (I would never use the felpros again)
I ended up with some leakage (combustion gases not coolant) after a standing mile run at the 900hp level. Would not be an issue with MLS
That's impressive!
Did they chew up the head noticeably?
No there was no damage. I didn't even know there was a problem until the next time I tore it down for a rebuild. Still made the 1000 mile drive home.
Good input. the pre-flattened copper ring seems like a nice idea for middle of the road applications (900hp ain't middle of the road).
Too bad there doesn't seem to be any interest in making them for Mopars.
