Looking for pistons designed for lq4 bored .030 over using ls3 heads... using stock crank, and 6.125 rods. having a hard time finding something like that... or do they have to be custom made?

 

I had just regular -4cc valve relief Mahle pistons with my l92 heads and didn't have any problem with a 244/248 .612/.615 cam

 

almost any new after market piston should have valve reliefs that offer the clearance you want for l92 heads.
That's an off the shelf piston you're looking for.

 

okay sweet... im not looking to use a cam quite that big so just about any flat top piston with valve reliefs will work

 

Okay so i have found 2 pistons so far that may work first is wiseco -3.2cc flat top forged #10-k398 it used with 6.125" rod.... then i also found wiseco pro tru +4cc dome piston #10-pt124h uses stock rod length.... anyone have pros or cons? or other suggestions. trying to get around 10.5:1 compression

 

The wiseco +4 cc piston I believe uses the stock size wrist pin as well. I just bought +12cc dome wiseco pistons and having my machine shop mill them down to a +5cc dome.

 

yeah the +4 cc dome piston uses stock rod and pin.... should i be okay to use stock rod??

 

Depends on what you have plans for. Always build it for more power than what you intend for..

 

thats kind of where im at right now... my goal is over 400 rwhp and id be happy... maybe a little giggle gas or FI down the road