LS1 vs LQ9
#21
why a 427? The 4.125 stroke seems pretty big, and a 4.060 doesn't leave you much cylinder wall. Why not a 408 or a 418? I'm assuming by the low compression pistons you want to go FI correct?
#22
TECH Senior Member
iTrader: (8)
Yes I am going to do a FI setup, its not the walls I have to worry about, I have to worry more about my low compression pistons and my crankshaft. To fit in a standard deck block, they typically have a compression height of about 1.0x" which is relatively thin and flimsy. Not to mention, the rings are exposed to even more heat since they will be moved further up closer to the point of combustion in the cylinder.
#24
#25
For the record...I don't like the idea of fly cutting...Thats why they make pistons with valve reliefs already casted into them. I would opts for a few less ponies (Smaller Cam) than mess with that.
#28
Yes I am going to do a FI setup, its not the walls I have to worry about, I have to worry more about my low compression pistons and my crankshaft. To fit in a standard deck block, they typically have a compression height of about 1.0x" which is relatively thin and flimsy. Not to mention, the rings are exposed to even more heat since they will be moved further up closer to the point of combustion in the cylinder.