Piston dish Volume

[LKWTSI]

I've had my head and block decked and and now I'm trying to figure out what my compression ratio is going to be. I guess I need the volumes of the valve area and dish on the piston.

Anyone know what they are or where I can find them??

I have NPR 0.020 over pistons.

thanks for the help.

 

[BogusSVO]

what part number are they? for what app?

 

[LKWTSI]

what part number are they? for what app?

The receipt shows them as 10-546-2. They are for my 1G 4G63T. with a 0.020" overbore.

Does this help??

thanks

 

[LKWTSI]

Just in case anyone cares!!!

The volume is 25cc.
Standard Head chamber is 49cc