Hypereutectic Pistons Keith Black pistons have several important advantages over conventional alloy pistons. High silicon content yields superior thermal and wear characteristics, greater strength, scuff and seizure protection, and resistance to cracking. High silicon content also keeps heat in the combustion chambers, eliminating heat transfer and improving combustion. Pistons are machined for 5/64" top, 5/64" second and 3/16" oil ring unless noted. Sold in sets of eight with wrist pins (except Ford 2300cc, sold in sets of four). Small Block Chevrolet 283-400 KBPKB106.030* Flat Top 4.030" 3.480" 5.700" 10.2:1 -7cc KBPKB112.030* Flat Top 4.030" 3.480" 6.000" 10.2:1 -7cc KBPKB112.060* Flat Top 4.060" 3.480" 6.000" 10.2:1 -7cc KBPKB119.030 Dome 4.030" 3.480" 5.700" 11.2:1 +.5cc KBPKB119.040 Dome 4.040" 3.480" 5.700" 11.2:1 +.5cc KBPKB120.020 Flat Top 4.020" 3.480" 5.700" 10.2:1 -7cc KBPKB120.030 Flat Top 4.030" 3.480" 5.700" 10.2:1 -7cc KBPKB120.040 Flat Top 4.040" 3.480" 5.700" 10.2:1 -7cc KBPKB120.060 Flat Top 4.060" 3.480" 5.700" 10.2:1 -7cc KBPKB122.030* Flat Top 4.030" 3.750" 6.000" 10.9:1 -7cc KBPKB122.040* Flat Top 4.040" 3.750" 6.000" 10.9:1 -7cc KBPKB125.030 Flat Top 4.155" 3.750" 5.700" 11.4:1 -7cc KBPKB129.030 Dome 4.155" 3.750" 6.000" 12.9:1 +3.25cc KBPKB134.030 Flat Top 4.030" 3.750" 5.700" 10.9:1 -7cc KBPKB134.040 Flat Top 4.040" 3.750" 5.700" 10.9:1 -7cc KBPKB135.030 Dish 4.030" 3.750" 5.700" 9.7:1 -18cc KBPKB147.030 Dish 4.155" 3.750" 5.700" 10.2:1 -18cc KBPKB156.030 Flat Top 4.030" 3.250" 5.700" 9.6:1 -7cc KBPKB156.040 Flat Top 4.040" 3.250" 5.700" 9.6:1 -7cc KBPKB156.060 Flat Top 4.060" 3.250" 5.700" 9.6:1 -7cc KBPKB157.030 Dome 4.030" 3.250" 5.700" 10.5:1 +.5cc KBPKB157.040 Dome 4.040" 3.250" 5.700" 10.5:1 +.5cc KBPKB193.030 Dish 4.030" 3.480" 5.700" 9.6:1 -12cc KBPKB197.STD D-Cup 4.000" 3.750" 5.700" 10.3:1 -12cc KBPKB197.030 D-Cup 4.030" 3.750" 5.700" 10.3:1 -12cc KBPKB197.040 D-Cup 4.040" 3.750" 5.700" 10.3:1 -12cc KBPKB228.030 Flat Top 4.030" 3.480" 5.700" 10.2:1 -7cc KBPKB231.030* Flat Top/ LW 4.030" 3.480" 5.700" 10.3:1 -6cc Small Block Ford 289-351W KBPKB115.030 Flat Top 4.030" 2.870" 5.090" 9.1:1 -6cc KBPKB115.040 Flat Top 4.040" 2.870" 5.090" 9.1:1 -6cc KBPKB116.030 Dome 4.030" 2.870" 5.090" 9.9:1 +2cc KBPKB116.060 Dome 4.060" 2.870" 5.090" 9.9:1 +2cc KBPKB246.030* Flat Top 4.030" 3.400" 5.400" 10.0:1 -6.5cc Ford 2300cc 4-Cylinder (Sold in sets of four) KBPKB217.030* Flat Top 3.810" 3.126" 5.205" 8.7:1 -4.5cc KBPKB217.040* Flat Top 3.820" 3.126" 5.205" 8.7:1 -4.5cc KBPKB218.030* Flat Top 3.810" 3.126" 5.700" 8.7:1 -4.5cc KBPKB218.040* Flat Top 3.820" 3.126" 5.700" 8.7:1 -4.5cc Notes: * Signifies piston machined for 1/16" top, 1/16" second and 3/16" oil rings. Compression ratios are based on a 64cc combustion chamber. Part No. Description Bore Stroke Rod Length Comp Ratio Head Volume
Claimer Series Performance Pistons Achieve maximum performance with high piston ring placement and low thermal conduc- tivity. Top rings operate at higher temps and require slightly larger end gaps (4.000" bore x .0065" gap factor = .026" total end gap). It is recommended that ignition timing be retarded 2-4°. Pistons are machined for 5/64" top, sec- ond and 3/16" oil rings. Sold in sets of eight with wrist pins. Small Block Chevrolet 283-400 KBP9902HC.030 Flat Top 4.030" 3.480" 5.700" 10.4:1 -5cc KBP9902HC.040 Flat Top 4.040" 3.480" 5.700" 10.4:1 -5cc KBP9902HC.060 Flat Top 4.060" 3.480" 5.700" 10.4:1 -5cc KBP9903HC.030 Dome 4.030" 3.480" 5.700" 11.6:1 +14cc KBP9903HC.040 Dome 4.040" 3.480" 5.700" 11.6:1 +14cc KBP9909HC.040 Flat Top 4.040" 3.750" 6.000" 11.1:1 -5cc KBP9904HC.030 Dome 4.030" 3.480" 5.700" 11.6:1 +4cc KBP9908HC.030 Flat Top 4.030" 3.480" 6.000" 10.4:1 -5cc KBP9908HC.060 Flat Top 4.060" 3.480" 6.000" 10.4:1 -5cc KBP9911HC.030 Flat Top 4.155" 3.750" 5.700" 11.7:1 -5cc Note: Compression ratios are based on a 64cc combustion chamber. Part No. Description Bore Stroke Rod Length Comp Ratio Head Volume
FHR Series Forged Pistons Quality alloy aluminum Forged Head Relief (FHR) pistons accept 5/64" top, 5/64" second and 3/16" oil rings. Sets of eight include wrist pins and Tru-Arc lock rings.
Rod Length
Comp. Ratio
Head Volume
Part No.
Description Bore Stroke
Small Block Chevrolet 283-400 ICNIC9913.030 Flat Top 4.030" 3.480" 5.700" 10.2:1 -6.4cc ICNIC9913.040 Flat Top 4.040" 3.480" 5.700" 10.2:1 -6.4cc ICNIC9913.060 Flat Top 4.060" 3.480" 5.700" 10.2:1 -6.4cc ICNIC9933.030 Dome 4.030" 3.480" 5.700" 12.0:1 +6cc ICNIC9941.030 Flat Top 4.155" 3.750" 5.700" 11.9:1 -3.7cc Note: Compression ratios are based on a 64cc combustion chamber. Premium Forged Series Pistons
Pistons are made of 2618 aluminum alloy and accept 1/16" top, 1/16" second and 3/16" oil rings unless otherwise noted. Sets of eight, include wrist pins and spiral locks.
Rod Length
Comp. Ratio
Head Volume
Part No.
Description
Bore
Stroke
Small Block Chevrolet 283-400 ICNIC727.030 Dome
4.030" 3.480" 5.700" 12.0:1 6.3cc
ICNIC727.040 4.040" 3.480" 5.700" 12.0:1 6.3cc ICNIC754.030 Step Dish 4.155" 3.750" 5.700" 10.6:1 -15.2cc ICNIC792.030 Flat Top 4.030" 3.250" 5.700" 9.8:1 -4.9cc ICNIC792.040 Flat Top 4.040" 3.250" 5.700" 9.8:1 -4.9cc ICNIC793.040 Dome 4.040" 3.250" 5.700" 11.2:1 6.3cc Small Block Ford 289-351W ICNIC736.030 Dome 4.030" 3.000" 5.090" 10.6:1 6.8cc Note: Compression ratios are based on a 64cc combustion chamber. Dome
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2019-20 CIRCLE TRACK PARTS AND ACCESSORIES
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