Ramairbird

iTrader: (17)

Anyone know the cc's of stock L92 piston's valve reliefs? Thanks

Beaflag VonRathburg

iTrader: (176)

Necroposting.... Someone has to know this by now. I can't find this information and really need to know the exact valve relief size.

SweetS10V8

iTrader: (4)

I dont know, but why do you NEED to know exactly? The car will run the same if you know or not. its probably 2-5cc ish total.

Beaflag VonRathburg

iTrader: (176)

The car would run the same if it was a whole running engine. All I have now is a shortblock that I am trying to decide on what heads and valvetrain components to run. Knowing the piston relief size I can figure out what size my chambers and head gaskets need to be to reach a certain compression goal. Knowing the relief size and valve drop I can roughly figure out my PTV clearance when having a cam custom made. I have it estimated at -1.6ccs, but I would like to know an exact number so I can figure these details out. I know someone has to know at this point in time.