JE Pistons Ultra Series GM Gen V LT4 4.065in Bore/4in Stroke Set of 8 Pistons carbon fiber hood Alternate muffler with notched necks

Alternate muffler with notched necks is 400484

Manufacturer Part # : ACR-0938

0L RWD S650 Performance Pack w/ Magneride

Spring pre-load determines the pressure differential required across the piston before the BOV opens and releases the pressurized intake charge

meaning our radiator can pull more heat out of more coolant

JE Pistons Ultra Series GM Gen V LT4 4.065in Bore/4in Stroke Set of 8 Pistons carbon fiber hood Alternate muffler with notched necksManufacturer Part # : 360795 Market Description Ultra Series forged pistons from JE are the industry? s strongest, most fully featured pistons available off the shelf. Offered for a wide range of domestic applications from LS to Big Block and HEMI to Ford Modular, Ultra Series pistons feature JE? s proprietary Aligned Grain Flow forging technology providing next level tensile strength ideal for the extreme cylinder pressures of power adder engine