doc454

I've recently started on a 6.0 iron block project and could use some advice. My block is nearly new with 6 of the bores measuring 4.000, one measuring 4.001, and one measuring 4.0015. I can have the machine shop hone the cylinders to 4.005 or bore them .30 over to 4.030. Texas speed and Thunder racing have pistons for both applications. Are there any advantages or disadvantages to either option. Thank for sharing your expertise.

LSONE

iTrader: (1)

might as well go 408, they seem to be making better numbers anyway.

cyphur

iTrader: (10)

i haven't seen too many 403 combinations out there personally.

408s make some great power. i don't think you'll go wrong either way.

doc454

Thanks guys looks like its going to be a 408.

soldeir

iTrader: (10)

408 is the way to go mine runs hard