Supertech Performance Piston Kit; For Natury Aspirated/Nitrous Applications; For use w/ Ring Set GNH8650 HONDA CRX


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Part #: P4-H8650-P8
Notes: Piston Kit
For Naturally Aspirated/Nitrous Applications
For use w/ Ring Set GNH8650
MSRP: $593.78
Your Price: $131.37
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Specs

Bore 86.50mm[2.50mm + Oversized]
Comp Height 1.181" (30mm)
Comp Ratio 13.5:1
Dome/Dish Volume CCs 8
Pin Diameter 21mm (.827")
Pin Weight 74grams
Piston Weight 322grams
Rod Length 5.394"
Skirt Style Slipper Style
Stroke 3.504"

This Item Also Available In

Part Number Price Notes & Specs
P4-H845-P1 $120.37 Notes Piston Kit
For Naturally Aspirated/Nitrous Applications
For use w/ Ring Set GNH8450
Bore 84.50mm[0.5mm + Oversized]
Comp Height 1.181" (30mm)
Comp Ratio 11.5:1
Dome/Dish Volume CCs 1.4
Pin Diameter 21mm (.827")
Pin Weight 74grams
Piston Weight 306grams
Rod Length 5.394"
Skirt Style Slipper Style
Stroke 3.504"
P4-H845-P5 $120.37 Notes Piston Kit
For Naturally Aspirated/Nitrous Applications
For use w/ Ring Set GNH8450
Bore 84.50mm[0.5mm + Oversized]
Comp Height 1.181" (30mm)
Comp Ratio 12.5:1
Dome/Dish Volume CCs 5.5
Pin Diameter 21mm (.827")
Pin Weight 74grams
Piston Weight 310grams
Rod Length 5.394"
Skirt Style Slipper Style
Stroke 3.504"
P4-H85-P1 $120.37 Notes Piston Kit
For Naturally Aspirated/Nitrous Applications
For use w/ Ring Set GNH8500
Bore 85.00mm[1mm + Oversized]
Comp Height 1.181" (30mm)
Comp Ratio 11.5:1
Dome/Dish Volume CCs 1.4
Pin Diameter 21mm (.827")
Pin Weight 74grams
Piston Weight 318grams
Rod Length 5.394"
Skirt Style Slipper Style
Stroke 3.504"
P4-H85-P5 $120.37 Notes Piston Kit
For Naturally Aspirated/Nitrous Applications
For use w/ Ring Set GNH8500
Bore 85.00mm[1mm + Oversized]
Comp Height 1.181" (30mm)
Comp Ratio 12.5:1
Dome/Dish Volume CCs 5.5
Pin Diameter 21mm (.827")
Pin Weight 74grams
Piston Weight 318grams
Rod Length 5.394"
Skirt Style Slipper Style
Stroke 3.504"
P4-H85-P8 $120.37 Notes Piston Kit
For Naturally Aspirated/Nitrous Applications
For use w/ Ring Set GNH8500
Bore 85.00mm[1mm + Oversized]
Comp Height 1.181" (30mm)
Comp Ratio 13.5:1
Dome/Dish Volume CCs 8
Pin Diameter 21mm (.827")
Pin Weight 74grams
Piston Weight 322grams
Rod Length 5.394"
Skirt Style Slipper Style
Stroke 3.504"
P4-H86-P4 $134.92 Notes Piston Kit
For Naturally Aspirated/Nitrous Applications
For use w/ Ring Set GNH8600
Bore 86.00mm[2mm+ Oversized]
Comp Height 1.181" (30mm)
Comp Ratio 12.7:1
Dome/Dish Volume CCs 4.5
Pin Diameter 21mm (.827")
Pin Weight 74grams
Piston Weight 290grams
Rod Length 5.394"
Skirt Style Slipper Style
Stroke 3.504"
P4-H86-P8 $120.37 Notes Piston Kit
For Naturally Aspirated/Nitrous Applications
For use w/ Ring Set GNH8600
Bore 86.00mm[2mm + Oversized]
Comp Height 1.181" (30mm)
Comp Ratio 13.5:1
Dome/Dish Volume CCs 8
Pin Diameter 21mm (.827")
Pin Weight 74grams
Piston Weight 322grams
Rod Length 5.394"
Skirt Style Slipper Style
Stroke 3.504"
P4-H86-P1 $120.37 Notes Piston Kit
For Naturally Aspirated/Nitrous Applications
For use w/ Ring Set GNH8600
Bore 86.00mm[2mm+ Oversized]
Comp Height 1.181" (30mm)
Comp Ratio 11.5:1
Dome/Dish Volume CCs 1.4
Pin Diameter 21mm (.827")
Pin Weight 74grams
Piston Weight 318grams
Rod Length 5.394"
Skirt Style Slipper Style
Stroke 3.504"
P4-H845-N10R $131.37 Notes Piston Kit
For Naturally Aspirated/Nitrous/Turbo Applications
For use w/ Ring Set GNH8450
Bore 84.50mm[0.5mm + Oversized]
Comp Height 1.181" (30mm)
Comp Ratio 9.5:1
Dome/Dish Volume CCs -10.3
Pin Diameter 21mm (.827")
Pin Weight 74grams
Piston Weight 270grams
Rod Length 5.394"
Skirt Style Slipper Style / R
Stroke 3.504"
P4-H85-N10R $131.37 Notes Piston Kit
For Naturally Aspirated/Nitrous/Turbo Applications
For use w/ Ring Set GNH8500
Bore 85.00mm[1mm + Oversized]
Comp Height 1.181" (30mm)
Comp Ratio 9.5:1
Dome/Dish Volume CCs -10.3
Pin Diameter 21mm (.827")
Pin Weight 74grams
Piston Weight 275grams
Rod Length 5.394"
Skirt Style Slipper Style / R
Stroke 3.504"

All Fitments

ACURA
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
1990 - 2001 INTEGRA ALL ALL ALL ALL ALL ALL B20 Block w/ B16A Head (+0.3 w/ B18C Head)
HONDA
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
1988 - 2000 CIVIC ALL ALL ALL ALL ALL ALL B20 Block w/ B16A Head (+0.3 w/ B18C Head)
1993 - 1997 CIVIC DEL SOL ALL ALL ALL ALL ALL ALL B20 Block w/ B16A Head (+0.3 w/ B18C Head)
1988 - 1991 CRX ALL ALL ALL ALL ALL ALL B20 Block w/ B16A Head (+0.3 w/ B18C Head)

Product Description

Supertech Pistons are manufactured from extruded high silicone, enhanced 4032 alloy (with additional Cu, Ni & Mg) that had low thermal expansion, excellent wear resistance and higher thermal conductivity. Supertech Pistons, with this alloy, have withstood up to 42psi of boost, with alcohol, without any problems.

A two or three step forging process yields a fine structural grain which are then submitted to several machining steps in state of the art CNC machines.

Several heat treatments provide the piston with high tensile strength and evenly distributed hardness.

Contact reduction grooves are standard, and pin bores are honed and reamed for precise fit. Wrist pins are constructed of cold extruded chrome moly steel for high strength and used with wire clip locks.

Finally, the pistons receive a ‘phosphate dry lubricant’ coating to protect the rings against ‘micro-welding’ and enhance lubrication on the skirt/cylinder area.

Compression ratios are computed with .030” head gasket and .010” deck unless indicated in each case.

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