WTB 4G64 Pistons

Lives4Speed · Post by **Lives4Speed** » Fri Apr 04, 2008 8:08 am

Looking for any NEW Pistons Mitsubishi Part # MD193495

Anybody have any Mitsu parts connections 'Down Under'?

LMK

Thanks,
L4S

jeffball610 · Post by **jeffball610** » Fri Apr 04, 2008 11:35 am

Did a quick search on an OEM Mitsubishi parts seller and looks like about $60 each. Is this for a SOHC or DOHC 4G64? The DOHC units probably have a lower compression piston than the SOHC units. Better for boost.

Lives4Speed · Post by **Lives4Speed** » Sat Apr 05, 2008 9:38 am

jeffball610 wrote:Did a quick search on an OEM Mitsubishi parts seller and looks like about $60 each. Is this for a SOHC or DOHC 4G64? The DOHC units probably have a lower compression piston than the SOHC units. Better for boost.

Do you have a link for the OEM Mitsubishi parts seller?

Why would you assume the DOHC would be a lower compression? The 4G63 DOHC pistons are flattop. The G63B pistons are somewhat dished. With this in mind, I would assume that the 4G64 DOHC piston to be a higher compression ratio over the SOHC.
Sportier engine and evy-tang.

L4S

PS BION I'm NOT looking to BOOST...........................................This Time

Lives4Speed · Post by **Lives4Speed** » Sat Apr 05, 2008 12:43 pm

Ordered a set from mistsubishiparts.net
I'll post here what they look like IF I get them.........

L4S

jeffball610 · Post by **jeffball610** » Sun Apr 06, 2008 1:31 pm

From what I know of the 2.4L bottom end and the 4G63 head combo, it will give you a static compression ratio of about 11:1. That's pretty high for a car built in 1994 (only DOHC 4G64). I think the SOHC units had a much lower compression. Maybe this is all due to the head and not the pistons. I just thought I would add the info about the DOHC 4G64 vs the SOHC to make sure you're getting the parts you want.