JE Pistons Big Block Inverted Dome Piston Forged 4.500" Bore 1/16 x 1/16 x 3/16" Ring Grooves - Minus 20.0 cc YA0640 Fits most JAZ or RCI

Fits most JAZ or RCI fuel cells with 12 bolt fill cap

28%-70% increase in sway bar rate

and pull-down tighten adjustment

LS to GM F-Body 1970-74

JE Pistons Big Block Inverted Dome Piston Forged 4.500" Bore 1/16 x 1/16 x 3/16" Ring Grooves - Minus 20.0 cc YA0640 Fits most JAZ or RCIJE Pistons is the leader in high performance forged pistons. JE Pistons has built a reputation that the competition can only follow. JE Pistons has a history of manufacturing the highest quality pistons and components that professional engine builders, race teams, and high performance enthusiasts alike trust and rely JE Pistons. The top engine builders in NASCAR, NHRA, IRL, IHRA, IDRA, PROSTAR and others choose JE Pistons over any other brand. JE