Piston Set for 1997-2001 Acura Integra Type R B18C5 VTEC Engines
P4-H81-N2R
Bore: 81mm
Over Size: STD
Comp Ratio: 9.9:1
Volume CCs: -2.5
Head CCs: 42.7
Comp Height: 30mm
Stroke: 3.433"
Rod Length: 5.429"
Pin Diam: 21mm (.827")
P4-H81-P6
Bore: 81mm
Over Size: STD
Comp Ratio: 11.6:1
Volume CCs: 5.9
Head CCs: 42.7
Comp Height: 30mm
Stroke: 3.433"
Rod Length: 5.429"
Pin Diam: 21mm (.827")
P4-H81-P7
Bore: 81mm
Over Size: STD
Comp Ratio: 12.1:1
Volume CCs: 7.5
Head CCs: 42.7
Comp Height: 30mm
Stroke: 3.433"
Rod Length: 5.429"
Pin Diam: 21mm (.827")
P4-H815-N2
Bore: 81.5mm
Over Size: +0.5mm
Comp Ratio: 9.9:1
Volume CCs: -2.5
Head CCs: 42.7
Comp Height: 30mm
Stroke: 3.433"
Rod Length: 5.429"
Pin Diam: 21mm (.827")
P4-H815-P6
Bore: 81.5mm
Over Size: +0.5mm
Comp Ratio: 11.6:1
Volume CCs: 5.9
Head CCs: 42.7
Comp Height: 30mm
Stroke: 3.433"
Rod Length: 5.429"
Pin Diam: 21mm (.827")
P4-H815-P7
Bore: 81.5mm
Over Size: +0.5mm
Comp Ratio: 12.1:1
Volume CCs: 7.5
Head CCs: 42.7
Comp Height: 30mm
Stroke: 3.433"
Rod Length: 5.429"
Pin Diam: 21mm (.827")
P4-H82-N2
Bore: 82mm
Over Size: +1mm
Comp Ratio: 9.9:1
Volume CCs: -2.5
Head CCs: 42.7
Comp Height: 30mm
Stroke: 3.433"
Rod Length: 5.429"
Pin Diam: 21mm (.827")
P4-H82-P6
Bore: 82mm
Over Size: +1mm
Comp Ratio: 11.8:1
Volume CCs: 5.9
Head CCs: 42.7
Comp Height: 30mm
Stroke: 3.433"
Rod Length: 5.429"
Pin Diam: 21mm (.827")
P4-H82-P7
Bore: 82mm
Over Size: +1mm
Comp Ratio: 12.4:1
Volume CCs: 7.5
Head CCs: 42.7
Comp Height: 30mm
Stroke: 3.433"
Rod Length: 5.429"
Pin Diam: 21mm (.827")
P4-H83-P6
Bore: 83mm
Over Size: +2mm
Comp Ratio: 12.1:1
Volume CCs: 5.9
Head CCs: 42.7
Comp Height: 30mm
Stroke: 3.433"
Rod Length: 5.429"
Pin Diam: 21mm (.827")
P4-H84-N10
Bore: 84mm
Over Size: +3mm
Comp Ratio: 9.2:1
Volume CCs: -10.3
Head CCs: 42.7
Comp Height: 30mm
Stroke: 3.433"
Rod Length: 5.429"
Pin Diam: 21mm (.827")
P4-H84-N2R
Bore: 84mm
Over Size: +3mm
Comp Ratio: 10.6:1
Volume CCs: -2.5
Head CCs: 42.7
Comp Height: 30mm
Stroke: 3.433"
Rod Length: 5.429"
Pin Diam: 21mm (.827")
P4-H84-P1
Bore: 84mm
Over Size: +3mm
Comp Ratio: 11.3:1
Volume CCs: 1.4
Head CCs: 42.7
Comp Height: 30mm
Stroke: 3.433"
Rod Length: 5.429"
Pin Diam: 21mm (.827")
P4-H84-P5
Bore: 84mm
Over Size: +3mm
Comp Ratio: 12.5:1
Volume CCs: 5.5
Head CCs: 42.7
Comp Height: 30mm
Stroke: 3.433"
Rod Length: 5.429"
Pin Diam: 21mm (.827")
P4-H845-N2R
Bore: 84.5mm
Over Size: +3.5mm
Comp Ratio: 10.7:1
Volume CCs: -2.5
Head CCs: 42.7
Comp Height: 30mm
Stroke: 3.433"
Rod Length: 5.429"
Pin Diam: 21mm (.827")
P4-H85-N2R
Bore: 85mm
Over Size: +4mm
Comp Ratio: 10.8:1
Volume CCs: -2.5
Head CCs: 42.7
Comp Height: 30mm
Stroke: 3.433"
Rod Length: 5.429"
Pin Diam: 21mm (.827")
Includes: Coated Pistons, Wrist Pins, Locks and NPR Rings
Supertech applies over 40 years of experience in designing and manufacturing high performance racing pistons. Each piston is designed utilizing the latest in CAD software and finite element analysis (FEA) and manufactured from enhanced 4032 alloy. This material features low thermal expansion, excellent wear resistance and a higher thermal conductivity. All of our pistons are created using a 2 or 3 step forging process (depending on the application) which yields the finest structural grain orientation and the strongest piston possible. Each piston then goes through several heat treatments to ensure high tensile strength and evenly distributes hardness. From there several machining steps take place on specifically designed CMC machines to ensure flatness of the ring grooves. All Supertech pistons feature contact reduction grooves and honed pin bores for a precise fit.