1964h

i may have to bore out my lq9 and was wondering if the 6.2 pistons will work with the stock lq9 rods and crank .all i can find are forged pistons as replacements that are all 600$ range there should be some cheaper stock replacements that are .30 over or so any ideas?

KCS

iTrader: (20)

4.060" is probably pushing it for a 6.0L block, but with stock pistons, I doubt it will matter. I plan on doing the same thing, so I'd say go for it.

1964h

so the ls3 pistons are a 4.060 bore? man thats the limit right ?

A.R. Shale Targa

iTrader: (2)

IIRC the general increased the bore to 4.065 in order to unshroud the 2.165"
intake valves for a final displacement of 376 cubes. Have the block sonic
checked to check for core shift and a competant machine shop can offset
bore to center in the casting. Actual material removal is .0325. Rebalance
crank as necessary.

1964h

my block is at a machine shop waiting for there call tomorow or tuesday.he will let me know foresure if i need to bore out walls im sure i have to.but is this a good idea or shuld i just buy 30 over pistons i dont want to be maxing out cylinder walls on the boring ?and does any one sell pistons a little cheaper than the forged ones?