KB Hypereutectic Piston 4.375" Bore 1/16 x 1/16 x 3/16" Ring Grooves - Minus 6.0 cc DK14247411SFI Internal Components Are 409s Stainless

Internal Components Are 409s Stainless

Two 2-1/16 in Holes

GM A-Body / B-Body / F-Body / X-Body 1965-74

Racers like Tom Bailey who set three new records and took the overall event win on the 2013 Hot Rod Magazine Drag Week and John Scali who used it to win the 2013 JEGS All-Star race

KB Hypereutectic Piston 4.375" Bore 1/16 x 1/16 x 3/16" Ring Grooves - Minus 6.0 cc DK14247411SFI Internal Components Are 409s StainlessProduct Description: Piston KB Series Hypereutectic 4. 375 in Bore 1 16 x 1 16 x 3 16 in Ring Grooves Minus 6. 00 cc Oldsmobile V8 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