Recently blew stock pistons and ordered pistons and rods from CNNP, which never came. Beware of CNNP!! I called Howell Automotive and a they told me that I couldn't use the stock bore JE pistons on my engine if it was turbo charged. Can anybody explain the difference between using stock bore vs .020 over-sized. I thought I could just buy the standard bore JE's and rods and slap them in without all the machine work hassel. Let me know!

Paul

depends on the condition of your engine to use stock size or to over bore it... open it up and take a look at your block (inside) to see if its ok yet... to overbore is just to make it bigger/cleaner ..

Michael 99gs
Mods:
Hrc Stage 2
S-FMU
315cc injectors
Crane HI-6DI2
Greddy Type S Bov
VC-2
Road Race Catch Can
Greddy Profec B & Switch
Apexi WS Catback
Super Afc
Autometer Boost, electric fuel, Egt, Tranny Temp Gauge & Cooler, Air/Fuel Light & Digital
Tokico Adjust Struts
Eibach Pro Kit Springs
Front & Rear Upper Bar
2 piston calipers(front), powerslot rotors, r4-s pads, & rre lines
CarCraft Interior
Sound System= Bring it On

If you blew your pistons then more than likely you have scared cylinder walls. Boring it out makes them smooth and clean again.