Keith Black hypereutectic pistons are made from 390 alloy and heat-treated to T6 standards, which makes them 30 percent stronger than ordinary untreated hypereutectics. Their 100 percent CNC-machined crowns, high upper compression-ring location, gas-accumulator groove, drilled oil returns, and spiral-lock retainer grooves make these pistons outstanding for performance applications. On top of that, Keith Black's hypereutectic pistons have a lightweight, rigid-rib skirt design that stabilizes the piston in the bore. All of this adds up to pistons that fit tighter than forged types, provide improved oil control, reduce blowby, increase ring life, eliminate cold start-up knocking, and won't cost you an arm and a leg!

More From This Category

KB Piston, 4 in. Bore, For Chrysler 360 Rod 6.123 Step Dish +18cc 2V, .060 Oversized, w/ Rings, Each

KB Piston, 4 in. Bore, For Chrysler 360 Rod 6.123 Step Dish +18cc 2V, .060 Oversized, w/ Rings, Each

$770.58

View
KB Piston, 4 in. Bore, For Chrysler 360 Rod 6.123 Quench Head +2.8cc 2V, .030 Oversized, w/ Rings, Each

KB Piston, 4 in. Bore, For Chrysler 360 Rod 6.123 Quench Head +2.8cc 2V, .030 Oversized, w/ Rings, Each

$770.58

View
KB PISTONS KB Hyper Piston - Chry 408 Rod 6.123 Step Dish 23.5cc 2V No Quench Dome Includes Ring Set

KB PISTONS KB Hyper Piston - Chry 408 Rod 6.123 Step Dish 23.5cc 2V No Quench Dome Includes Ring Set

$781.40

View
KB Piston, 4 in. Bore, For Chrysler 408 Rod 6.123 Step Dish +23.5cc 2V, .020 Oversized, w/ Rings, Each

KB Piston, 4 in. Bore, For Chrysler 408 Rod 6.123 Step Dish +23.5cc 2V, .020 Oversized, w/ Rings, Each

$965.28

View
KB Piston, 4 in. Bore, For Chrysler 408 Rod 6.123 Step Dish +23.5cc 2V, .040 Oversized, w/ Rings, Each

KB Piston, 4 in. Bore, For Chrysler 408 Rod 6.123 Step Dish +23.5cc 2V, .040 Oversized, w/ Rings, Each

$965.28

View
KB PISTONS KB Hyper Piston - Chry 408 Rod 6.123 Step Dish 23.5cc 2V No Quench Dome Includes Ring Set

KB PISTONS KB Hyper Piston - Chry 408 Rod 6.123 Step Dish 23.5cc 2V No Quench Dome Includes Ring Set

$781.40

View