KB Auto Hyper Hypereutectic Piston - 4.125 in Bore - 5/64 x 5/64 x 3/16 in Ring Grooves - Plus 17.00 cc - Big Block Chevy (Set of 8) HX02121 400 in H Beam Rods

400 in H Beam Rods

Patented ratchet mounting systemDerale has been the leader in performance cooling for decades

7-3/4 in Wide

Designed specifically for the LS7 platform

An external water bypass boss is machined into the front of the water crossover for use on 1996 and later Vortec production engines

KB Auto Hyper Hypereutectic Piston - 4.125 in Bore - 5/64 x 5/64 x 3/16 in Ring Grooves - Plus 17.00 cc - Big Block Chevy (Set of 8) HX02121 400 in H Beam RodsProduct Description: Piston Auto Hyper Hypereutectic 4. 125 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Plus 17. 00 cc Big Block Chevy Set of 8 Created from a high silicon aluminum alloy, KB Performance pistons are lightweight to improve throttle response and RPM changes while still being strong enough to withstand high compression and high temperatures. Each piston is engineered with race ready features like high upper compression ring locations, gas