JE Big Block Inverted Dome Forged Piston (J257942)

JE Big Block Inverted Dome Forged Piston (J257942)BBC 4. 500" PISTONS 20cc DISH Big Block Chevy 540, 4. 500" bore, 6. 385" rod length, 20. 0cc dome volume Part Number: J257942 These big block pistons are compatible with forced induction, nitrous and angle milled heads. The inverted dome shape has been designed for maximum efficiency and horsepower. Valve reliefs will accommodate oversized valves and long duration, tight lobe separation cams. Precision CNC machined ring grooves accept 1 16, 1 16, 3 16

Part Number: EN7009-SD

Line-Loc or Other Accessories

1:1 pedal ratio - Works with all carburetors for full throttle range

4mm Tip Length

120 STEEL NEEDLE & SEATS

These alternator brackets are made from 6061 T6 billet aluminium and are designed to suit Small Block Chevy V8s with a Low-Mounted alternator on the left hand side (Australian Passenger Side) ofthe motor and the "Short" Water pump

Seat Angle: Exhaust 45 deg/Intake 60 deg

for a simple and streamline installation

This high quality Stealth Magnum Grip side plate is constructed from CNC billet aluminum and has a 12V momentary button that can be used for activating a trans brake

Valve angle: 15°

Constructed from 16-gauge aluminized steel or 409S Stainless Steel and fully MIG welded for maximum durability

Includes Spring