chmirada
Well-Known Member
I wanted to find out if you guys or someone would know what the deck height (piston top at tdc to deck) is on a 318 non magnum roller block?
Tech question on a 318 roller block.
- Thread starter chmirada
- Start date
MiradaMegacab
Well-Known Member
Thats deck clearance.
Quench height = Deck height + Head gasket compressed thickness.
Deck height is 9.6"
Im guessing the pistons are around .060 down in the hole
Quench height = Deck height + Head gasket compressed thickness.
Deck height is 9.6"
Im guessing the pistons are around .060 down in the hole
MiradaMegacab
Well-Known Member
What's up? Whatcha trying to do?
Compression height is the distance from the center of the wrist pin to the top of the piston.
Thats a nice Mirada in your avatar
Compression height is the distance from the center of the wrist pin to the top of the piston.
Thats a nice Mirada in your avatar
chmirada
Well-Known Member
Yes, Deck clearance, but need actual numbers a cop car block piston is down .070" down.
MiradaMegacab
Well-Known Member
They vary from the factory.
Even deck heights vary from the 9.6
Best bet is to pull the heads and measure.
a 3.31 stroke with a 9.6 deck height will need a 1.82 comp height piston to be at zero deck
Even deck heights vary from the 9.6
Best bet is to pull the heads and measure.
a 3.31 stroke with a 9.6 deck height will need a 1.82 comp height piston to be at zero deck
