408 piston questions

**Qwk94Z28** · 08-23-2007, 08:22 AM

i'm looking at getting pistons for my iron lq9 stroker, boring it .030 over, is -2cc valve reliefs gonna be enough for the l92 heads? i was told no,what should i go with when i order my pistons since i plan on doing it in the next few days.

i want a compression ratio thats gonna be ok to run on 94 octane so is 11:1 too much, cause i've seen 4 cylinders with 10.5 stock running pump gas

i also thought of boring the block .060 over for more cubes but not 100% sure yet if i should

**mrr23** · 08-25-2007, 05:23 AM

going .060 over will bring you to a 415. if you ever need to rebuild the motor, you won't be able to bore the block again.

i use the wiseco k394a3 pistons with a -8cc dish. with my heads at 62cc, i'm at 11.3:1 compression and run 91 octane everyday.

**Qwk94Z28** · 08-25-2007, 06:06 AM

Originally Posted by mrr23

going .060 over will bring you to a 415. if you ever need to rebuild the motor, you won't be able to bore the block again.

i use the wiseco k394a3 pistons with a -8cc dish. with my heads at 62cc, i'm at 11.3:1 compression and run 91 octane everyday.

yeah i've decided with just a .030 over piston, found a deal on a crank and rods first so the pistons will have to wait about 2 weeks,

how much did your wiseco's cost you?

**Mr. Luos** · 08-25-2007, 10:34 AM

Mahle's.

**mrr23** · 08-25-2007, 06:03 PM

Originally Posted by Qwk94Z28

yeah i've decided with just a .030 over piston, found a deal on a crank and rods first so the pistons will have to wait about 2 weeks,

how much did your wiseco's cost you?

$800 with rings.