streetknight2

iTrader: (10)

So I have a stock bottom end LQ9 that I was going to use LS3 heads on. I had a cam ground for it and had to have the stock pistons fly cut.

I was told I needed .080" on the Intake and .100" on the Exhaust. I measured everything and the had .010" clearance on the Intake and .065" on the exhaust.

Shop said They'd cut .075" on the intake and .050" on the exhaust.

Trouble is, I picked them up and installed one to measure and figured out, they cut the the WRONG way. they cut .100" on the exhaust and .050" on the intake.

So now, I have .060" on intake ( non enough still) and .160" on the exhaust ( too much)

Do you think I'd b safe getting them to cut the intake deeper or just scrap them and start over?

I'm getting very frustrated with this build.

mark21742

They cut them wrong...they "should " stand behind their work and replace and recut another set of pistons for you if the first set can not be "safely" recut

arob987

iTrader: (9)

x2 most good shops fix there mistakes

01ssreda4

iTrader: (96)

Intake valve is not nearly as critical because it chases the piston. The exhaust is where you worry because the piston chases it. I'd run it.