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Wiseco Pistons Wiseco Pistons - Acura/Honda
Includes: moly coated skirts, rings, wrist pins & circlips.
* Non-coated, not supplied with rings.

Wiseco is world renown for their work building race winning pistons for compact engines featuring small bores, multi-valves, and high RPM's applications for many years.
Features:
  1. Valve Pocket designs that allow max flow around valve, also allowing oversized valves and high lift cams to be utilized.
  2. Piston crown shapes designed to promote max Intake Charge efficiency thru scavenging mixture 'Cross Flow" during intake and exhaust valve overlap. More fuel and air equals more horsepower.
  3. Pistons designed to optimize squish or quench during compression/combustion cycle event, resulting in resistance to detonation and pre-ignition. The end product is longer engine life and increased horsepower potential.
  4. Complex piston skirt profiles that reduce power robbing friction, yet promoting stability in bore for optimum ring seal.
  5. Precision machined ring grooves with proper orifice/accumulator volume using calculated groove root diameters and axial widths, featuring excellent surface finish and flatness providing maximum ring seal and minimizes blow-by and oil consumption.
  6. World class forging facility that utilizes the latest technologies featuring complex forged shapes, advanced materials, and featured aligned grain flw technology.
Piston prices marked with an * do not include rings..
If you need rings, please order them here:
Rings with purchase of Wiseco Pistons:
Rings: Price/Set Buy Now Rings: Price/Set Buy Now
4 Cyl $79
6 Cyl $119
Rings purchased alone:
Rings: Price/Set Buy Now Rings: Price/Set Buy Now
4 Cyl $99
6 Cyl $139
K1 Rods Available  = Whenever you see the K1 logo, it means there is an optional K1 Part available for that application (click on the K1 LOGO)
 
ACURA Integra '94-'01 (B18C)
Series# Bore
MM/Inch		 Over
sizes		 Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp
Ratio		 Pin
Dia.		 Notes Buy Now
Inches K541M81
$439		 81.00/3.189 std. 3.433 5.433 1.181 41.5 -12 8.6-8.9 .827 1
Metric K541M815
$439		 81.50/3.209 .020 87.2 138 30 41.5 -12 8.6-8.9 21mm 1
  K541M82
$439		 82.00/3.228 .040 Same as pistons above 1
Inches K542M81
$439		 81.00/3.189 std. 3.433 5.433 1.175 41.5 FT -4 9.7-10.2 .827 1
Metric K542M815
$439		 81.50/3.209 .020 87.2mm - - 41.5 -4 9.7-10.2 21mm 1
  K542M82
$439		 82.00/3.228 .040 Same as pistons above 1
Inches K566M81
$439		 81.00/3.189 std. 3.433 5.433 1.185 41.5 5 11.8-12.25 .827 1
Metric K566M815
$439		 81.50/3.209 .020 87.2mm 138 30 41.5 5 11.8-12.25 21mm 1
  K566M82
$439		 82.00/3.228 .040 Same as pistons above 1
Inches K593M81
$439		 81.00/3.189 std. 3.433 5.433 1.185 41.5 8.25 12.5-13.2 .827 1

Metric K593M815
$439		 81.50/3.209 .020 87.2mm 138 30 41.5 8.25 12.5-13.2 21mm 1

  K593M82
$439		 82.00/3.228 .040 Same as pistons above 1

K1 Rods Available   Optional K1 Rods Available!
 
 ACURA Integra 1990-00  (B18A1/B1)
Series # Bore
MM/Inch		 Over
sizes		 Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp
Ratio		 Pin
Dia.		 Notes Buy Now
Inches K541M81
$439		 81.00/3.189 std. 3.504 5.394 1.181 45 -12 8.3-8.6 .827 1
Metric K541M815
$439		 81.50/3.209 .020 89 137 30 45 -12 8.3-8.6 21mm 1
  K541M82
$439		 81.50/3.209 .020 Same as above 1

Inches K542M81
$439		 81.00/3.189 std. 3.504 5.394 1.175 45 FT -4 9.3-9.8 .827 1
Metric K542M815
$439		 81.50/3.209 .020 89 137 29.85 45 FT -4 9.3-9.8 21mm 1
  K542M82
$439		 81.50/3.209 .020 Same as above 1
Inches K566M81
$439		 81.00/3.189 std. 3.504 5.394 1.185 45 5 11.1-11.6 .827 1
Metric K566M815
$439		 81.50/3.209 .020 89 137 30.1 45 5 11.1-11.6 21mm 1

  K566M82
$439		 82.00/3.228 .040 Same as above 1

Inches K593M81
$439		 81.00/3.189 std. 3.504 5.394 1.185 45 8.25 11.8-12.4 .827 1

Metric K593M815
$439		 81.50/3.209 .020 89 137 30.1 45 8.25 11.8-12.4 21mm 1

  K593M82
$439		 82.00/3.228 .040 Same as above 1

K1 Rods Available   Optional K1 Rods Available!
 
ACURA Integra GSR 1992-93  (B17A1)
Series # Bore
MM/Inch		 Over
sizes		 Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp
Ratio		 Pin
Dia.		 Notes Buy Now
Inches K542M81
$439		 81.00/3.189 std. 3.205 5.208 1.175 42.7 FT -4 9.1-9.4 .827 1
Metric K542M815
$439		 81.50/3.209 .020 81.4 132 29.9 42.7 FT -4 9.1-9.4 21mm 1
  K542M82
$439		 82.00/3.228 .040 same as above 1
Inches K566M81
$439		 81.00/3.189 std. 3.205 5.208 1.185 42.7 5 10.9-11.25 .827 1

Metric K566M815
$439		 81.50/3.209 .020 81.4 132 30.1 42.7 5 10.9-11.25 21mm 1

  K566M82
$439		 82.00/3.228 .040 same as above 1

Inches K593M81
$439		 81.00/3.189 std. 3.205 5.208 1.185 42.7 8.25 11.8-12 .827 1
Metric K593M815
$439		 81.50/3.209 .020 81.4 132 30.1 42.7 8.25 11.8-12 21mm 1
  K593M82
$439		 82.00/3.228 .040 same as above 1
ACURA RSX-S 2002-06 K20
Series # Bore
MM/Inch		 Over
sizes		 Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp
Ratio		 Pin
Dia.		 Notes Buy Now
Inches K568M86
$439		 86.00/3.386 std. 3.386 5.472 1.181 50.5 -9 9.0:1 .866 1
Metric K568M865
$439		 86.50/3.405 .020 86 139 30 50.5 -9 9.0:1 22mm 1
  K568M87
$439		 87.00/3.425 .040 same as above 1
  K568M875
$439		 87.50 / 3.445 .060 1
  K568M88
$439		 88.00/3.464 .080 1

  K568M89
$439		 89.00/3.504 .120 1
Inches K631M86
$439		 86.00/3.386 std 3.386 5.472 1.181 50.5 -3.4 FT 9.8 .866 1
Metric K631M865
$439		 87.00/3.425 .040 86 139 30 50.5 -3.4 FT  9.8 22mm 1
  K631M87
$439		 88.00/3.464 .080 same as above 1
  K631M875
$439		 89.00/3.504 .120 1
Inches K573M86
$439		 86.00/3.386 std. 3.386 5.472 1.181 50.5 8 11.7:1 .866 1
  K573M865
$439		 86.50/3.405 .020 86 139 30 50.5 8 11.7:1 22mm 1
Metric K573M87
$439		 87.00/3.425 .040 same as above 1
  K573M875
$439		 87.50 / 3.445 .060 1
  K573M88
$439		 88.00/3.464 .080 1
  K573M89
$439		 89.00/3.504 .120 1
K24 w/K20 Cylinder Head
Series # Bore
MM/Inch		 Over
sizes		 Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp
Ratio		 Pin
Dia.		 Notes Buy Now
Inches K622M870
$439		 87.00/3.425 std. 3.897 5.984 1.181 50.5 -21 8.8 .866 1
Metric K622M875
$439		 87.50/3.445 .020 99 152 30 50.5 -21 8.8 22mm 1
  K622M880
$439		 88.00/3.464 .040 99 152 30 50.5 -21 8.8 22mm 1
Inches K568M87
$439		 87.00/3.425 std. 3.897 5.984 1.181 50.5 -9 10.2 .866 1

Metric K568M875
$439		 87.50/3.445 .020 99 152 30 50.5 -9 10.2 22mm 1
  K568M88
$439		 88.00/3.464 .040 99 152 30 50.5 -9 10.2 22mm 1

  K568M89
$439		 89.00/3.504 .080 99 152 30 50.5 -9 10.2 22mm 1

Inches K631M86
$439		 86.00/3.386 std 3.386 5.472 1.181 50.5 -3.5 FT 11.1 .866 1
Metric K631M865
$439		 87.00/3.425 .040 86 139 30 50.5 -3.5 FT  11.1 22mm 1
  K631M87
$439		 88.00/3.464 .080 same as above 1
  K631M875
$439		 89.00/3.504 .120 1
Inches K573M87
$439		 87.00/3.425 std 3.897 5.984 1.181 50.5 8 13.7 .866 1

Metric K573M875
$439		 87.50/3.445 .020 99 152 30 50.5 8 13.7 22mm 1
  K573M88
$439		 88.00/3.464 .040 99 152 30 50.5 8 13.7 22mm 1

  K573M89
$439		 89.00/3.504 .080 99 152 30 50.5 8 13.7 22mm 1

HONDA Civic SI 1993-01 (B16A). Must use at least .040" thick gasket.
Series # Bore
MM/Inch		 Over
sizes		 Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp
Ratio		 Pin
Dia.		 Notes Buy Now
Inches K542M81
$439		 81.00/3.189 STD 3.047 5.290 1.175 42.7 FT -4 8.8-9.0 .827 1
Metric K542M815
$439		 81.50/3.209 .020 77.4 134 29.9 42.7 FT -4 8.8-9.0 21mm 1
  K542M812
$439		 82.00/3.228 .040 same as above 1

Inches K566M81
$439		 81.00/3.189 STD 3.047 5.290 1.185 42.7 5 10.75:1 .827 1

Metric K566M815
$439		 81.50/3.209 .020 77.4 134 30.1 42.7 5 10.75:1 21mm 1

  K566M82
$439		 82.00/3.228 .040 same as above 1

Inches K593M81
$439		 81.00/3.189 STD 3.047 5.290 1.185 42.7 8.25 11.5:1 .827 1
Metric K593M815
$439		 81.50/3.209 .020 77.4 134 30.1 42.7 8.25 11.5:1 21mm 1
  K593M82
$439		 82.00/3.228 .040 same as above 1
HONDA CRV/VTEC 1972-02 (B20B w/B16A Head)
Series # Bore
MM/Inch		 Over
sizes		 Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp
Ratio		 Pin
Dia.		 Notes Buy Now
Inches K545M84
$439		 84.00/3.307 Std. 3.504 5.394 1.181 42.7 -18 8.4-8.8 .827 1
Metric K545M845
$439		 84.50/3.327 .020 89 137 30 42.7 -18 8.4-8.8 21mm 1
  K545M85
$439		 85.00/3.347 .040 same as above 1
Inches K623M840
$439		 84.00/3.307 Std. 3.504 5.394 1.181 42.7 -3 F/T 10.4-10.9 .827 1
Metric K623M845
$439		 84.50/3.327 .020 89 137