Availability
KB Performance Pistons have everything you want in a performance piston: the strength to withstand high compression and heat, lightweight design, and a price that fits...
KB Performance Pistons have everything you want in a performance piston: the strength to withstand high compression and heat, lightweight design, and a price that fits your budget. Most are forged from high-silicon aluminum alloy, then CNC-machined and heat-treated for strength up to 30% greater than stock. They’re also engineered with race-ready features like high upper compression-ring locations, gas-accumulator grooves, drilled oil returns, and spiral-lock retainer grooves. We also carry Keith Black Silv-O-Lite pistons for high quality in a lower-silicon stock replacement piston.
KB Performance Pistons have everything you want in a performance piston: the strength to withstand high compression and heat, lightweight design, and a price that fits your budget. Most are forged from high-silicon aluminum alloy, then CNC-machined and heat-treated for strength up to 30% greater than stock. They’re also engineered with race-ready features like high upper compression-ring locations, gas-accumulator grooves, drilled oil returns, and spiral-lock retainer grooves. We also carry Keith Black Silv-O-Lite pistons for high quality in a lower-silicon stock replacement piston.
Pistons, Hypereutectic, Dome, 4.030 in. Bore, Ford, Set of 8
Part Number: UEM-KB116-030
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston and Ring Kit, Hypereutectic, Flat, 4.030 in. Bore, Ford, Small Block, Kit
Part Number: UEM-KB115KTM-030
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston and Ring Kit, Claimer, Hypereutectic, Flat, 4.030 in. Bore, Chevy, Kit
Part Number: UEM-9901HCKTM030
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Hypereutectic, Flat, 4.000 in. Bore, Chrysler, Set of 8
Part Number: UEM-KB107-STD
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Hypereutectic, Flat, 4.030 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8
Part Number: UEM-9909HC-030
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Hypereutectic, Flat, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8
Part Number: UEM-9902HC-STD
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Hypereutectic, Flat, 4.030 in. Bore, Ford, Set of 8
Part Number: UEM-KB115-030
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston and Ring Kit, Hypereutectic, Flat, 4.030 in. Bore, Ford, Kit
Part Number: UEM-KB151KTM-030
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston and Ring Kit, Hypereutectic, Flat, 4.030 in. Bore, Mopar, Small Block, Kit
Part Number: UEM-KB107KTM-030
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston and Ring Kit, Claimer, Hypereutectic, Flat, 4.030 in. Bore, Chevy, Small Block, Kit
Part Number: UEM-9902HCKTM030
Estimated Ship Date: Jul 2, 2025 if ordered today
Estimated Ship Date: Jul 2, 2025 if ordered today
Piston and Ring Kit, Hypereutectic, Flat, 3.940 in. Bore, Mopar, Small Block, Kit
Part Number: UEM-KB167KTM-030
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Hypereutectic, Flat, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Set of 8
Part Number: UEM-KB151-030
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston and Ring Kit, Hypereutectic, Dome, 3.940 in. Bore, Mopar, Small Block, Kit
Part Number: UEM-KB399KTM-030
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston and Ring Kit, Hypereutectic, Flat, 4.350 in. Bore, Chrysler, Kit
Part Number: UEM-KB237KTM030
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Hypereutectic, Dome, 4.280 in. Bore, Chrysler, Set of 8
Part Number: UEM-KB400-030
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston and Ring Kit, Claimer, Hypereutectic, Flat, 4.000 in. Bore, Chevy, Small Block, Kit
Part Number: UEM-9902HCKTMSTD
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Hypereutectic, Dome, 4.155 in. Bore, Set of 8
Part Number: UEM-KB160-030
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Hypereutectic, Dome, 4.280 in. Bore, Chevy, Set of 8
Part Number: UEM-KB257-030
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Hypereutectic, Flat, 4.030 in. Bore, Chevy, Set of 8
Part Number: UEM-KB120-030
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston and Ring Kit, Hypereutectic, Flat, 4.280 in. Bore, Chevy, Big Block, Kit
Part Number: UEM-KB202KTM-030
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston and Ring Kit, Hypereutectic, Flat, 3.935 in. Bore, Chevy, Small Block, Kit
Part Number: UEM-KB165KTM-060
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston and Ring Kit, Hypereutectic, Flat, 3.910 in. Bore, Mopar, Small Block, Kit
Part Number: UEM-KB167KTM-STD
Estimated Ship Date: Jun 11, 2025 if ordered today
Estimated Ship Date: Jun 11, 2025 if ordered today
Piston and Ring Kit, Hypereutectic, Flat, 4.372 in. Bore, Mopar, Big Block, Kit
Part Number: UEM-KB240KTM-030
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Hypereutectic, Flat, 4.030 in. Bore, Chevy, Set of 8
Part Number: UEM-9906HC-030
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Hyper Coated, 390 Alloy, 3.875 in. Bore, 6.123 in. Rod, 3.895 in. Stroke, -27.5cc Dish, 1.353 in. Compression Height, Jeep, 4.0L, Set of 6
Part Number: UEM-KB424C-030
Estimated Ship Date: Today
Estimated Ship Date: Today
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