Quote:
Originally Posted by PAUL K
would his theoretical 800 horsepower stock block Pontiac engine with eight sleeves make more power compared to a block with no sleeves and thin cylinders?
|
I’ll take a crack at this. I’d say it would make more power due to the higher cyl rigidity resulting in better ring seal and less piston friction.
Quote:
Originally Posted by PAUL K
FWIW we have built a LOT (comparatively) of Pontiac engines using an SD455 block as the foundation. They have consistently had the thinnest cylinder walls of all the 455 engines we have checked. So any folks looking to get rid of those junk thin wall blocks, I would be happy to take them off your hands, I'll supply with a nice 455 block with thicker cylinders and even set up the freight on my end.
|
Interesting, do the SD’s have design characteristics that would make the thin cyl walls a non issue? If I did a short fill w/ hardblok and got lighter forged pistons/rods, would it hold up to 9.5 comp and a RAIV cam? Otherwise, it seems dropping the coin on good pistons/rods would be a waste.