SMALL BLOCK CHEVY
BIG BLOCK CHEVY
FORD
MOPAR
BUICK
NHRA
CHOOSE YOUR CYLINDER HEAD TYPE:
OPEN CHAMBER
Big Block Flat Top
Big Block Inverted Dome
Big Block Tall Deck Inv. Dome
B/B Open Chamber Dome
B/B Nitrous Series Dome
Nitrous Series GP
Open Chamber Dome GP (Gas Ported)
CLOSED CHAMBER
Big Block Flat Top
Big Block Inverted Dome
Big Block Tall Deck Inv. Dome
396, 427, 454 Closed Chamber
BIG DUKE / BIG CHIEF 18º
Big Duke / Big Chief GP 18º
Pro Mod Style GP 18º
clearance during assembly as shown on the tech page of this catalog. If you have questions regarding the head chamber details on your particular cylinder head JE suggests that you contact the cylinder head manufacturer directly. Another critical area of importance when choosing a piston for the big block Chevy is block deck height and deck clearance. Standard deck height from GM is 9.800" however the GM truck blocks, as well as some aftermarket offerings, have a deck height of 10.200". The "tall deck" block (10.200") as it is commonly known, allows the use of longer stroke and longer rod combinations for increased displacement. JE uses the 9.780" block deck height with zero deck clearance when computing compression heights for all of our big block Chevy pistons except where noted. Use the handy compression height calculator provided on the tech page of this catalog to determine the correct piston for your application.

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- Denotes part # has been issued a new part #. A list referencing old part #s to their new counterparts will be available shortly.

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