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Wiseco Pistons - Acura/Honda
Piston Sets Include: moly coated skirts, rings, wrist pins & circlips.
(* = Custom Set, non-coated, not supplied with rings. Order RINGS separately here)

Wiseco Sport Compact Pistons are made from dedicated forgings produced in-house to give you a light weight piston with superior strength and optimal design. As the multivalve piston technology leader, the line features specially designed valve pockets, complex dome and crown shapes, the steel nitride/napier xx rings and optimized skirt profiles.
 
Stocking Shelf Pistons Come Complete With:
  • Aerospace grade materials, forged for maximum strength.
  • Precision tolerance CNC machining for quality, repeatability and performance.
  • Crown thickness and ring lands designed for power adders such as forced induction (turbos & blowers) and nitrous oxide. (Note: High comp. pistons are generally designed for nat. aspirated engines)
  • High Quality Piston Rings featuring positive twist nitride steel top ring, Napier 2nd ring, and nitrided rails on a specially designed expander for the best oil control.
  • Wrist Pins constructed of chrome moly steel material for the ultimate in strength.
  • Honed/Reamed pin bore holes for a precise tolerance fi t between wrist pin and piston.
  • Wire Retainer Clip Lock, featuring chrome silicon material for the ultimate yield strength.
  • Piston deburred for performance and reliability.
  • Pistons come standard with our ArmorGlide® coating material for reduced friction and noise, freeing up horsepower

ArmorPlating ("AP")
ArmorPlating increases durability of the ring grooves and helps prevent micro welding. This tough coating combats the erosion on the crown of the piston caused by detonation. [Complete "AP" Info Here]
"AP" for Stocking Pistons - Any pistons ending in “AP” have ArmorPlating INCLUDED
"AP" for Custom Pistons* - Add the ArmorPlating to any CUSTOM Piston set marked with an * below for only $25 per piston. Call to order at (603) 378-0090, or CLICK HERE to add it to your ONLINE order.

K1 Rods Available = Matching K1 Rods and/or cranks available
 
Custom Built Pistons
In addition to the pistons below, IPP in conjunction with Wiseco is also able to build you custom pistons for just about any sport compact or import engine.

MAP Pricing Policy
MAP (Minimum Advertised Pricing) is what we are allowed to show for all our Wiseco Pistons.
However, if you take a quick second to call or email us, we can give you BELOW MAP pricing on your Wiseco Piston set. Never pay MAP, call us at IPP!
ACURA Integra '94-'01 (B18C)
(84.00mm and larger require sleeved engine block)
K1 Rods Available   Optional K1 Rods Available! Part # 015BS16138
Piston # Price/
Set		 Bore
MM/Inch		 Over
sizes		 Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp
Ratio		 Pin
Dia.		 Notes Buy
Now
Inches K541M81AP $545 81.00/3.189 std. 3.433 5.433 1.181 41.5 -12 8.6-8.9 .827 1
Metric K541M815AP $545 81.50/3.209 .020 87.2 138 30 41.5 -12 8.6-8.9 21mm 1
  K541M82AP $545 82.00/3.228 .040 Same as pistons above 1
Includes .225” wall tool steel pin
Inches K673M81AP $545 81.00/3.189 std. 3.433 5.433 1.181 41.5 -8 8.5:1 .827 1
Metric K673M815AP $545 81.25/3.199 .020 87.2 138 30 41.5 -8 8.6:1 21mm 1
  K673M82AP $545 82.00/3.228 .040 87.2 138 30 41.5 -8 8.7:1 21mm 1
Includes .200” wall pin
Inches K649M84 $537 84.00/3.307 .080 3.433 5.433 1.181 41.5 -10 8.8 .827 1
Metric K649M845 $537 84.50/3.327 .100 87.2 138 30 41.5 -10 8.8 21mm 1
  K649M85 $537 85.00/3.346 .120 87.2 138 30 41.5 -10 8.8 21mm 1
Inches K542M81AP $545 81.00/3.189 std. 3.433 5.433 1.175 41.5 -2.4 FT 9.7-10.2 .827 1
Metric K542M8125AP $545 81.25/3.199 .010 87.2mm 138 29.85 41.5 -2.4 F/T 9.7-10.2 21mm 1
  K542M815AP $545 81.50/3.209 .020 87.2mm - - 41.5 -2.4 FT 9.7-10.2 21mm 1
  K542M82AP $545 82.00/3.228 .040 Same as pistons above 1
Inches K623M84 $482 84.00/3.307 .080 3.433 5.433 1.181 41.5 -2.3 FT 10.5 .827 1
Metric K623M85 $482 84.50/3.327 .100 87.2 138 30 41.5 -2.3 FT 10.6 21mm 1
Inches K566M81AP $545 81.00/3.189 std. 3.433 5.433 1.185 41.5 5 11.8-12.25 .827 1
Metric K566M815AP $545 81.50/3.209 .020 87.2mm 138 30 41.5 5 11.8-12.25 21mm 1
  K566M82AP $545 82.00/3.228 .040 Same as pistons above 1
Inches K593M81AP $545 81.00/3.189 std. 3.433 5.433 1.185 41.5 8.25 12.5-13.2 .827 1

Metric K593M815AP $545 81.50/3.209 .020 87.2mm 138 30 41.5 8.25 12.5-13.2 21mm 1

  K593M82AP $545 82.00/3.228 .040 Same as pistons above 1

Inches K594M84AP $545 84.00 / 3.307 .08 3.433 5.433 1.181 41.5 8.3 13.0-13.6 .827 1
Metric K594M8425AP $545 84.25 / 3.317 .09 87.2 138 30 41.5 8.3 13.0-13.6 21mm 1
  K594M845AP $545 84.50 / 3.327 .100 87.2 138 30 41.5 8.3 13.0-13.6 21mm 1
  K594M85AP $545 85.00 / 3.346 .120 87.2 138 30 41.5 8.3 13.0-13.6 21mm 1
  K594M855AP $545 85.50 / 3.366 .140 87.2 138 30 41.5 8.3 13.0-13.6 21mm 1
  K594M86AP $545 86.00 / 3.386 .160 87.2 138 30 41.5 8.3 13.0-13.6 21mm 1
  
ACURA Integra 1990-01  (B18A1/B1)
K1 Rods Available   Optional K1 Rods Available! (Part # 015BR16137)
Piston # Price/
Set		 Bore
MM/Inch		 Over
sizes		 Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp
Ratio		 Pin
Dia.		 Notes Buy
Now
Inches K541M81AP $545 81.00/3.189 std. 3.504 5.394 1.181 45 -12cc 8.3:1 .827 1
Metric K541M8125AP $545 81.25/3.199 .010 89 137 30 45 -12cc 8.3:1 21mm 1
  K541M815AP $545 81.50/3.209 .020 89 137 30 45 -12cc 8.3:1 21mm 1
  K541M82AP $545 82.00/3.228 .040 89 137 30 45 -12cc 8.3:1 21mm 1
Includes .225” wall tool steel pin
Inches K673M81AP $545 81.00/3.189 std. 3.504 5.394 1.175 45 -8 8.5:1 .827 1
Metric K673M815AP $545 81.50/3.209 .020 89 137 29.85 45 -8 8.6:1 21mm 1
  K673M82AP $545 82.00/3.228 .040 89 137 29.85 45 -8 8.7:1 21mm 1
Includes .200” wall pin
Inches K649M84 $537 84.00/3.307 .080 3.504 5.394 1.175 45 -10 8.8 .827 1
Metric K649M845 $537 84.50/3.327 .100 89 137 29.85 45 -10 8.8 21mm 1
  K649M85 $537 85.00/3.346 .120 89 137 29.85 45 -10 8.8 21mm 1
Inches K542M81AP $545 81.00/3.189 std. 3.504 5.394 1.175 45 -2.4cc F/T 9.5:1 .827 1
Metric K542M8125AP $545 81.25/3.199 .010 89 137 29.85 45 -2.4cc F/T 9.5:1 21mm 1
  K542M815AP $545 81.50/3.209 .020 89 137 29.85 45 -2.4cc F/T 9.5:1 21mm 1
  K542M82AP $545 82.00/3.228 .040 89 137 29.85 45 -2.4cc F/T 9.5:1 21mm 1
Inches K623M84 $482 84.00 .080 3.504 5.394 1.181 45 -2.3cc F/T 9.8:1 .827 1
Metric K623M845 $482 84.50 .100 89 137 30 45 -2.3cc F/T 9.9:1 21mm 1
Inches K566M81AP $545 81.00/3.189 std. 3.504 5.394 1.185 45 5cc 11.0:1 .827 1
Metric K566M8125AP $545 81.25/3.199 .010 89 137 30.1 45 5cc 11.0:1 21mm 1
  K566M815AP $545 81.50/3.209 .020 89 137 30.1 45 5cc 11.0:1 21mm 1
  K566M82AP $545 82.00/3.228 .040 89 137 30.1 45 5cc 11.0:1 21mm 1
Inches K593M81AP $545 81.00/3.189 std. 3.504 5.394 1.185 45 8.3cc 11.7:1 .827 1

Metric K593M8125AP $545 81.25/3.199 .010 89 137 30 45 8.3cc 11.7:1 21mm 1
  K593M815AP $545 81.50/3.209 .020 89 137 30 45 8.3cc 11.7:1 21mm 1
  K593M82AP $545 82.00/3.228 .040 89 137 30 45 8.3cc 11.7:1 21mm 1

Inches K594M84AP $545 84.00 / 3.307   3.504 5.394 1.185 42.7 8.3 12.8-13.0 .827 1
Metric K594M8425AP $545 84.25 / 3.317   89 137 30.1 42.7 8.3 12.8-13.0 21mm 1
  K594M845AP $545 84.50 / 3.327   89 137 30.1 42.7 8.3 12.8-13.0 21mm 1
  K594M85AP $545 85.00 / 3.346   89 137 30.1 42.7 8.3 12.8-13.0 21mm 1
  K594M855AP $545 85.50 / 3.366   89 137 30.1 42.7 8.3 12.8-13.0 21mm 1
  K594M86AP $545 86.00 / 3.386   89 137 30.1 42.7 8.3 12.8-13.0 21mm 1
 
ACURA B18 LS VTEC (B18A1/B1 w/B16A Vtec Head)
(84.00mm and larger require sleeved engine block)
K1 Rods Available   Optional K1 Rods Available! Part # 015BR16137
Piston # Price/
Set		 Bore
MM/Inch		 Over
sizes		 Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp
Ratio		 Pin
Dia.		 Notes Buy
Now
Inches K541M81AP $545 81.00 / 3.189 std. 3.504 5.394 1.181 42.7 -12 8.8-9.0 .827 1
Metric K541M8125AP $545 81.25 / 3.199 .010 89 137 30 42.7 -12 8.8-9.0    
Metric K541M815AP $545 81.50 / 3.209 .020 89 137 30 42.7 -12 8.8-9.0 21mm 1
  K541M82AP $545 82.00 / 3.228 .040 89 137 30 42.7 -12 8.8-9.0 21mm 1

Includes .225” wall pin
Inches K673M81AP $545 81.00/3.189 std. 3.504 5.394 1.181 42.7 -8 9.1 .827 1

Metric K673M815AP $545 81.50 / 3.209 .020 89 137 30 42.7 -8 9.1 21mm 1

  K673M82AP $545 82.00 / 3.228 .040 89 137 30 42.7 -8 9.1 21mm 1

Includes .200” wall pin
Inches K649M84 $537 84.00/3.307 .080 3.504 5.394 1.181 42.7 -10 9.3 .827 1

Metric K649M845 $537 84.50/3.327 .100 89 137 30 42.7 -10 9.3 21mm 1

  K649M85 $537 85.00/3.346 .120 89 137 30 42.7 -10 9.3 21mm 1

Inches K542M81AP $545 81.00 / 3.189 std. 3.504 5.394 1.175 42.7 -2.4 FT 9.8-10.2 .827 1
  K542M8125AP $545 81.25 / 3.199 .010 89 137 29.85 42.7 -2.4 FT     1
Metric K542M815AP $545 81.50 / 3.209 .020 89 137 29.85 42.7 -2.4 FT 9.8-10.2 21mm 1
  K542M82AP $545 82.00 / 3.228 .040 89 137 29.85 42.7 -2.4 FT 9.8-10.2 21mm 1
Inches K623M84 $482 84.00 .080 3.504 5.394 1.181 42.7 -2.3cc F/T 10.5 .827 1
Metric K623M845 $482 84.50 .100 89 137 30 42.7 -2.3cc F/T 10.5 21mm 1
Inches K566M81AP $545 81.00/3.189 std. 3.504 5.394 1.185 42.7 5 11.8-12.0 .827 1
Metric K566M815AP $545 81.50/3.209 .020 89 137 30.1 42.7 5 11.8-12.0 21mm 1
  K566M82AP $545 82.00/3.228 .040 89 137 30.1 42.7 5 11.8-12.0 21mm 1
Inches K593M81AP $545 81.00 / 3.189 std. 3.504 5.394 1.185 42.7 8.3 12.8-13.0 .827 1
Metric K593M8125AP $545 81.25 / 3.199 .010 89 137 30.1 42.7 8.3 12.8-13.0 21mm 1
  K593M815AP $545 81.50 / 3.209 .020 89 137 30.1 42.7 8.3 12.8-13.0 21mm 1
  K593M82AP $545 82.00 / 3.228 .040 89 137 30.1 42.7 8.3 12.8-13.0 21mm 1
Inches K594M84AP $545 84.00 / 3.307   3.504 5.394 1.185 42.7 8.3 12.8-13.0 .827 1
Metric K594M8425AP $545 84.25 / 3.317   89 137 30.1 42.7 8.3 12.8-13.0 21mm 1
  K594M845AP $545 84.50 / 3.327   89 137 30.1 42.7 8.3 12.8-13.0 21mm 1
  K594M85AP $545 85.00 / 3.346   89 137 30.1 42.7 8.3 12.8-13.0 21mm 1
  K594M855AP $545 85.50 / 3.366   89 137 30.1 42.7 8.3 12.8-13.0 21mm 1
  K594M86AP $545 86.00 / 3.386   89 137 30.1 42.7 8.3 12.8-13.0 21mm 1
ACURA Integra GSR 1992-93  (B17A1)
(must use at least .040” thick gasket)
Includes .225” wall tool steel pin
Piston # Price/
Set		 Bore
MM/Inch		 Over
sizes		 Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp
Ratio		 Pin
Dia.		 Notes Buy
Now
Inches K673M81AP $545 81.00/3.189 std. 3.205 5.208 1.181 42.7 -8 8.5 .827 1
Metric K673M815AP $545 81.50/3.209 .020 81.4 132.3 30 42.7 -8 8.5 21mm 1,
  K673M82AP $545 82.00/3.228 .040 81.4 132.3 30 42.7 -8 8.5 21mm 1
Inches K542M81AP $545 81.00/3.189 std. 3.205 5.208 1.175 42.7 -2.4cc F/T 9.3:1 .827 1
Metric K542M8125AP $545 81.25/3.199 .010 81.4 132.3 29.85 42.7 -2.4cc F/T 9.3:1 21mm 1
  K542M815AP $545 81.50/3.209 .020 81.4 132.3 29.85 42.7 -2.4cc F/T 9.3:1 21mm 1
  K542M82AP $545 82.00/3.228 .040 81.4 132.3 29.85 42.7 -2.4cc F/T 9.3:1 21mm 1
Inches K566M81AP $545 81.00/3.189 std. 3.205 5.208 1.185 42.7 5cc 11.0:1 .827 1
Metric K566M8125AP $545 81.25/3.199 .010 81.4 132.3 30.1 42.7 5cc 11.0:1 21mm 1
  K566M815AP $545 81.50/3.209 .020 81.4 132.3 30.1 42.7 5cc 11.0:1 21mm 1
  K566M82AP $545 82.00/3.228 .040 81.4 132.3 30.1 42.7 5cc 11.0:1 21mm 1
Inches K593M81AP $545 81.00/3.189 std. 3.205 5.208 1.185 42.7 8.25 11.8-12 .827 1
Metric K593M8125AP $545 81.25/3.199 .010 81.4 132.3 30 42.7 8.3cc 11.7:1 21mm 1
  K593M815AP $545 81.50/3.209 .020 81.4 132.3 30 42.7 8.3cc 11.7:1 21mm 1
  K593M82AP $545 82.00/3.228 .040 81.4 132.3 30 42.7 8.3cc 11.7:1 21mm 1
ACURA K20A1/2, K20Z1 & K20Z3 (Now with deeper and larger valve pockets)
RSX-S 2024-06
Civic Si 2024 (K20Z3)
K1 Rods Available   Optional K1 Rod for K20 Light weight (naturally aspirated) Series: Part # 015BW17139L
Optional K1 Rod for K20 Turbo Series: Part # 015BW17139
Piston # Price/
Set		 Bore
MM/Inch		 Over
sizes		 Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp
Ratio		 Pin
Dia.		 Notes Buy
Now
Inches K568M86 $537 86.00/3.386 std. 3.386 5.472 1.181 50.5 -9 9.0:1 .866 1
Metric K568M865 $537 86.50/3.405 .020 86 139 30 50.5 -9 9.0:1 22mm 1
  K568M87 $537 87.00/3.425 .040 86 139 30 50.5 -9 9.0:1 22mm 1
  K568M875 $537 87.50 / 3.445 .060 86 139 30 50.5 -9 9.0:1 22mm 1
  K568M88 $537 88.00/3.464 .080 86 139 30 50.5 -9 9.0:1 22mm 1

  K568M89 $537 89.00/3.504 .120 86 139 30 50.5 -9 9.0:1 22mm 1
Inches K631M86 $482 86.00/3.386 std 3.386 5.472 1.181 50.5 -3.5 FT 9.8 .866 1
Metric K631M865 $482 87.00/3.425 .040 86 139 30 50.5 -3.5 FT  9.8 22mm 1
  K631M87 $482 88.00/3.464 .080 86 139 30 50.5 -3.5 FT  9.8 22mm 1
  K631M875 $482 89.00/3.504 .120 86 139 30 50.5 -3.5 FT  9.8 22mm 1
Inches K634M87 $537 87.00/3.425 .040 3.386 5.472 1.181 50.5 5 11.0 .866 1
Metric K634M875 $537 87.50/3.445 .060 86 139 30 50.5 5 11.0 22mm 1
  K634M89 $537 89.00/3.504 .120 86 139 30 50.5 5 11.0 22mm 1
  K634M895 $537 89.50/3.524 .140 86 139 30 50.5 5 11.0 22mm 1
Includes .225” wall tool steel pin
Inches K573M86AP $545 86.00/3.386 std. 3.386 5.472 1.181 50.5 8 11.7 .866 1
Metric K573M865AP $545 86.50/3.405 .020 86 139 30 50.5 8 11.7 22mm 1
  K573M87AP $545 87.00/3.425 .040 86 139 30 50.5 8 11.7 22mm 1
  K573M875AP $545 87.50 / 3.445 .060 86 139 30 50.5 8 11.7 22mm 1
  K573M88AP $545 88.00/3.464 .080 86 139 30 50.5 8 11.7 22mm 1
  K573M89AP $545 89.00/3.504 .120 86 139 30 50.5 8 11.7 22mm 1
Inches K650M86AP $545 86.00/3.386 std. 3.386 5.472 1.181 50.5 10.5 12.4 .866 1, 4
Metric K650M865AP $545 86.50/3.405 .020 86 139 30 50.5 10.5 12.4 22mm 1, 4
  K650M87AP $545 87.00/3.425 .040 86 139 30 50.5 10.5 12.4 22mm 1, 4
  K650M875AP $545 87.50 / 3.445 .060 86 139 30 50.5 10.5 12.4 22mm 1, 4
  K650M88AP $545 88.00/3.464 .080 86 139 30 50.5 10.5 12.4 22mm 1, 4
  K650M89AP $545 89.00/3.504 .120 86 139 30 50.5 10.5 12.4 22mm 1, 4
Acura/Honda K24 and K24 head w/K20 Head  (Now with deeper and larger valve pockets)
K1 Rods Available   Optional K1 Rods Available for K24 Turbo Series: Part # 015BX17152
Piston # Price/
Set		 Bore
MM/Inch		 Over
sizes		 Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp
Ratio		 Pin
Dia.		 Notes Buy
Now
Inches K622M87 $537 87.00/3.425 std. 3.897 5.984 1.181 50.5 -21 8.8 .866 1
Metric K622M875 $537 87.50/3.445 .020 99 152 30 50.5 -21 8.8 22mm 1
  K622M88 $537 88.00/3.464 .040 99 152 30 50.5 -21 8.8 22mm 1
Inches K568M87 $537 87.00/3.425 std. 3.897 5.984 1.181 50.5 -9 10.2 .866 1

Metric K568M875 $537 87.50/3.445 .020 99 152 30 50.5 -9 10.2 22mm 1
  K568M88 $537 88.00/3.464 .040 99 152 30 50.5 -9 10.2 22mm 1

  K568M89 $537 89.00/3.504 .060 99 152 30 50.5 -9 10.2 22mm 1

Inches K631M87 $482 87.00/3.425 std 3.897 5.984 1.181 50.5 -3.5 FT 11.1 .866 1
Metric K631M875 $482 87.50/3.445 .020 99 152 30 50.5 -3.5 FT  11.1 22mm 1
Inches K634M87 $537 87.00/3.425 Std 3.897 5.984 1.181 50.5 5 12.5 .866 1
Metric K634M875 $537 87.50/3.445 .020 99 152 30 50.5 5 12.5 22mm 1
  K634M88 $537 88.00/3.464 .040 99 152 30 50.5 5 12.5 22mm 1
  K634M89 $537 89.00/3.504 .060 99 152 30 50.5 5 12.5 22mm 1
  K634M895 $537 89.50/3.524 .080 99 152 30 50.5 5 12.5 22mm 1
Includes .225” wall tool steel pin
Inches K573M87 $545 87.00/3.425 std 3.897 5.984 1.181 50.5 8 13.7 .866 1

Metric K573M875 $545 87.50/3.445 .020 99 152 30 50.5 8 13.7 22mm 1
  K573M88 $545 88.00/3.464 .040 99 152 30 50.5 8 13.7 22mm 1

  K573M89 $545 89.00/3.504 .080 99 152 30 50.5 8 13.7 22mm 1

Inches K650M86AP $545 86.00/3.386 std. 3.386 5.472 1.181 50.5 10.5 14.2 .866 1, 4

Metric K650M865AP $545 86.50/3.405 .020 86 139 30 50.5 10.5 14.2 22mm 1, 4

  K650M87AP $545 87.00/3.425 .040 86 139 30 50.5 10.5 14.2 22mm 1, 4
  K650M875AP $545 87.50 / 3.445 .060 86 139 30 50.5 10.5 14.2 22mm 1, 4
  K650M88AP $545 88.00/3.464 .080 86 139 30 50.5 10.5 14.2 22mm 1, 4
  K650M89AP $545 89.00/3.504 .120 86 139 30 50.5 10.5 14.2 22mm 1, 4
HONDA Civic SI 1993-01 (B16A).
***Must use at least .040" thick gasket.***
***84.00mm and larger require sleeved engine block***
K1 Rods Available   Optional K1 Rods Available! (Part # 015BR16529)
Piston # Price/
Set		 Bore
MM/Inch		 Over
sizes		 Stroke Rod C.H. Head
cc's		 Dome/Dish
Volume		 Comp
Ratio		 Pin
Dia.		 Notes Buy
Now
Includes .225" wall tool steel pin
Inches K673M81AP $545 81.00/3.189 STD 3.047 5.287 1.181 42.7 -8 8.1 .827 1, 3
Metric K673M815AP $545 81.50/3.209 .020 77.4 134.3 30 42.7 -8 8.2 21m 1, 3
  K673M82AP $545 82.00/3.228 .040 77.4 134.3 30 42.7 -8 8.28 21m 1, 3
Includes .200" wall pin
 
Inches K649M84 $537 84.00/3.307 .080 3.047 5.287 1.181 42.7 -10 8.3 .827 1, 3
Metric K649M845 $537 84.50/3.327 .100 77.4 134.3 30 42.7 -10 8.4 21m 1, 3
  K649M85 $537 85.00/3.346 .120   134.3 30 42.7 -10 8.4 21m 1, 3
Inches K542M81AP $545 81.00/3.189 STD 3.047 5.287 1.175 42.7 FT -2.4 8.9:1 .827 1, 3
Metric K542M8125AP $545 81.25/3.199 .010 77.4 134.3 29.85 42.7 FT -2.4 8.9:1 21mm 1, 3
  K542M815AP $545 81.50/3.209 .020 77.4 134.3 29.85 42.7 FT -2.4 8.9:1 21mm 1, 3
  K542M812AP$54582.00/3.228 .040 77.4 134.3 29.85 42.7 FT -2.4 8.9:1 21mm 1, 3
Inches K623M84 $482 84.00/3.307 .080 3.047 5.287 1.181 42.7 FT -2.3 9.4 21mm 1, 3
Metric K623M845 $482 84.50/3.327 .100 77.4 134.3 30 42.7 FT -2.3 9.4 21mm 1, 3
Inches K567M84AP $545 84.0 .08 3.047 5.287 1.181 42.7 2 10.2 21mm 1, 3
Metric K567M8425AP $545 84.25 .09 77.4 134.3 30 42.7 2 10.2 21mm 1, 3
  K567M845AP $545 84.50 .100 77.4 134.3 30 42.7 2 10.2 21mm 1, 3
  K567M85AP $545 85.0 .120 77.4 134.3 30 42.7 2 10.2 21mm 1, 3
Inches K566M81AP $545 81.00/3.189 STD 3.047 5.290 1.185 42.7 5cc 10.5:1 .827 1, 2, 3
Metric K566M8125AP $545 81.25/3.199 .010 77.4 134.3 30.1 42.7 5cc 10.5:1 21mm 1, 2, 3
  K566M815AP $545 81.50/3.209 .020 77.4 134.3 30.1 42.7 5cc 10.5:1 21mm 1, 2, 3
  K566M82AP $545 82.00/3.228 .040 77.4 134.3 30.1 42.7 5cc 10.5:1 21mm 1, 2, 3
Inches K593M81AP $545 81.00/3.189 STD 3.047 5.290 1.185 42.7 8.3cc 11.0 .827 1, 2, 3
Metric K593M8125AP $545 81.25/3.199 .010 77.4 134.3 30 42.7 8.3cc 11.0 21mm 1, 2, 3
  K593M815AP $545 81.50/3.209 .020 77.4 134.3 30 42.7 8.3cc 11.0 21mm 1, 2, 3
  K593M82AP $545 82.00/3.228 .040 77.4 134.3 30 42.7 8.3cc 11.0 21mm 1, 2, 3
Inches K594M84AP $545 84.0 .08 3.047 5.287 1.181 42.7 8.3cc 11.6 .827 1, 3
Metric K594M8425AP $545 84.25 .09 77.4 134.3 30 42.7 8.3cc 11.6 21mm 1, 3
  K594M845AP $545 84.50 .100 77.4 134.3 30 42.7 8.3cc 11.6 21mm 1, 3
  K594M85AP $545 85.0 .120 77.4 134.3 30 42.7 8.3cc 11.6 21mm 1, 3
  K594M855AP $545 85.5 .160 77.4 134.3 30 42.7 8.3cc 11.6 21mm 1, 3
  K594M86AP $545 86.0 .180 77.4 134.3 30 42.7 8.3cc 11.6 21mm 1, 3
B20B w/VTEC Head - HONDA CRV/VTEC 1997-02
K1 Rods Available   Optional K1 Rods Available! Part # 015BR16137
Piston # Price/
Set		 Bore
MM/Inch		 Over
sizes		 Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp
Ratio		 Pin
Dia.		 Notes Buy
Now
Inches K545M84 $537 84.00/3.307 Std. 3.504 5.394 1.181 42.7 -18 8.4-8.8 .827 1
Metric K545M845 $537 84.50/3.327 .020 89 137 30 42.7 -18 8.4-8.8 21mm 1
  K545M85 $537 85.00/3.347 .040 89 137 30 42.7 -18 8.4-8.8 21mm 1
Includes .200” wall pin
Inches K649M84 $537 84.00/3.307 Std. 3.504 5.394 1.181 42.7 -10 9.3-9.6 .827 1, 3
Metric K649M845 $537 84.50/3.327 .020 89 137 30 42.7 -10 9.3-9.6 21m 1, 3
  K649M85 $537 85.00/3.346 .040 89 137 30 42.7 -10 9.3-9.6 21m 1, 3
Inches K623M84 $482 84.00/3.307 Std. 3.504 5.394 1.181 42.7 -3 F/T 10.4-10.9 .827 1
Metric K623M845 $482 84.50/3.327 .020 89 137 30 42.7 -3 F/T 10.4-10.9 21mm 1
Inches K567M84AP $545 84.00/3.307 Std. 3.504 5.394 1.181 42.7 2 11.3-12.0 .827 1

Metric K567M845AP $545 84.50/3.327 .020 89 137 30 42.7 2 11.3-12.0 21m 1

  K567M85AP $545 85.00/3.346 .040 89 137 30 42.7 2 11.3-12.0 21m 1

Inches K594M84AP $545 84.00/3.307 Std. 3.504 5.394 1.181 42.7 8.25 13.2-14.2 .827 1
Metric K594M845AP $545 84.50/3.327 .020 89 137 30 42.7 8.25 13.2-14.2 21m 1
  K594M85AP $545 85.00/3.346 .040 same as above 1
  K594M855AP $545 85.50/3.366 .060 1
  K594M86AP $545 86.00/3.386 .080 1
HONDA Prelude 1992-01 H22 
(96+up FRM cylinders MUST run SLEEVED bores)
K1 Rods Available   Optional K1 Rods Available! Part # 015BV17143
Piston # Price/
Set		 Bore
MM/Inch		 Oversizes Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp Ratio Pin
Dia.		 Notes Buy
Now
Inches K544M87 $537 87.00/3.425 Std. 3.571 5.636 1.219 53.8 -14 8.5 .866 1
Metric K544M88 $537 88.00/3.464 .040 90.7 143 31 53.8 -14 8.5 22mm 1
  K544M89 $537 89.0/3.504 .080 90.7 143 31 53.8 -14 8.5 22mm 1
Inches K572M87 $552 87.00/3.425 Std. 3571 5.363 1.219 53.8 7 11.5 .866 1
Metric K572M88 $552 88.00/3.464 .040 90.7 143 31 53.8 7 11.5 22mm 1
  K572M89 $552 89.00/3.504 .080 90.7 143 31 53.8 7 11.5 22mm 1
HONDA Prelude H23 
(To be run with .030" piston to head minimum, requires .040" gasket minimum)
Piston # Price/
Set		 Bore
MM/Inch		 Oversizes Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp Ratio Pin
Dia.		 Notes Buy
Now
Inches K544M87 $537 87.00/3.425 Std. 3.740 5.571 1.219 50 -14 9.3 .866 1

Metric K544M88 $537 88.00/3.464 .040 95 141.5 31 50 -14 9.3 22mm 1

  K544M89 $537 89.0/3.504 .080 same as above 1

Inches K572M87 $552 87.00/3.425 Std. 3.740 5.571 1.219 50 7 13.0 .866 1

Metric K572M88 $552 88.00/3.464 .040 95 141.5 31 50 7 13.0 22mm 1

  K572M89 $552 89.00/3.504 .080 same as above 1

HONDA Civic SOHC 1992+ D16Z6, D16Y7
Piston # Price/
Set		 Bore
MM/Inch		 Oversizes Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp Ratio Pin
Dia.		 Notes Buy
Now
Inches K546M755 $537 75.50/2.972 .020 3.543 5.394 1.174 34.6 -15.4 8.5:1 .748 1
Metric -   75.50/2.972 .5mm 90 137 29.8 34.6 -15.4 8.5:1 19mm 1  
HONDA Civic SOHC 1996-00 (D16Y8)
Piston # Price/
Set		 Bore
MM/Inch		 Oversizes Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp Ratio Pin
Dia.		 Notes Buy
Now
Inches K543M75 $537 75.00/2.953 std 3.543 5.394 1.148 32.8 -14 8.5-9.0 .748 1
Metric K543M755 $537 75.50/2.972 .020 3.543 5.394 1.148 32.8 -14 8.5-9.0 19mm 1
Acura/Honda S2000 2024 F20C 2.0L  ('00-03 USDM,  00-05 JDM)
* = Custom Set, non-coated, not supplied with rings. Order RINGS separately here
Piston # Price/
Set		 Bore
MM/Inch		 Oversizes Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp Ratio Pin
Dia.		 Notes Buy
Now
Inches E540M870A $519* 87.0 Std. 84mm 6.023 1.171 52.5 - 8.8 22mm 3
Metric E540M875A $519* 87.5 20 84mm 6.023 1.171 52.5 - 8.8 22mm 3
Inches E540M870B $519* 87.0 Std. 84mm 6.023 1.171 52.5 - 10-1 22mm 3
Metric E540M875B $519* 87.5 20 84mm 6.023 1.171 52.5 - 10-1 22mm 3
Inches E540M870C $519* 87.0 Std. 84mm 6.023 1.141 52.5 Dome 13-1 23mm 3
Metric E540M875C $519* 87.5 20 84mm 6.023 1.141 52.5 Dome 13-1 23mm 3
  E540M880C $519* 88.0 40 84mm 6.023 1.141 52.5 Dome 13-1 23mm 3
 
Acura/Honda S2000 F22C 2024+up USDM 2024 JDM 2.2L
* = Custom Set, non-coated, not supplied with rings. Order RINGS separately here
Piston # Price/
Set		 Bore
MM/Inch		 Oversizes Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp Ratio Pin
Dia.		 Notes Buy
Now
Inches E541M870A $519* 87.0 Std. 3.573 5.892 1.171 52.5 - 8.8 22mm 3
Metric E541M875A $519* 87.5 20 3.573 5.892 1.171 52.5 - 8.8 22mm 3
Inches E541M870B $519* 87.0 Std. 3.573 5.892 1.171 52.5 - 10-1 22mm 3
Metric E541M875B $519* 87.5 20 3.573 5.892 1.171 52.5 - 10-1 22mm 3
Inches E541M870C $519* 87.0 Std. 3.573 5.892 1.171 52.5 Dome 13-1 22mm 3
Metric E541M875C $519* 87.5 20 3.573 5.892 1.171 52.5 Dome 13-1 22mm 3
  E541M880C $519* 88.0 40 3.573 5.892 1.171 52.5 Dome 13-1 22mm 3
F20C and F22C S2000
(FRM Cylinders must run SLEEVED bores)
* = Custom Set, non-coated, not supplied with rings. Order RINGS separately here
K1 Rods Available   Optional K1 Rods for S2000/K24 conversion: Part # 015BX17143
  Piston # Price/
Set		 Bore mm / Inch Over Sizes Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp. Ratio Pin Dia. Notes Buy  Now
F20C
Inches K632M87 $537 87.00 / 3.425 Std. 3.307 6.023 1.141 52.5 -10 8.5 .9055 1,2
(F20)
Metric K632M875 $537 87.50/ 3.445 .020 84 153 28.98 52.5 -10 8.5 23mm 1,2
(F20)
  K632M89 $537 89.00 / 3.504 .080 84 153 28.98 52.5 -10 8.5 23mm 1,2
(F20)
  KE238M875 $519* 87.50/ 3.445 .020 3.307 6.023 1.141 52.5 7cc 11.0-1 23mm 1,2
(F20)
  KE238M89 $519* 89.00 / 3.504 .080 84 153 28.98 52.5 7cc 11.0-1 23mm 1,2
(F20)
F22C
Inches K632M87 $537 87.00 / 3.425 Std. 3.573 5.892 1.141 52.5 -10 9.0 .9055 1,2
(F22)
Metric K632M875 $537 87.50/ 3.445 .020 90.75 149.65 28.98 52.5 -10 9.0 23mm 1,2
(F22)
  K632M89 $537 89.00 / 3.504 .080 90.75 149.65 28.98 52.5 -10 9.0 23mm 1,2
(F22)
  KE238M875 $519* 87.50/ 3.445 .020 3.573 5.892 1.141 52.5 7cc 11.5-1 23mm 1,2
(F22)
  KE238M89 $519* 89.00 / 3.504 .080 90.75 149.65 28.98 52.5 7cc 11.5-1 23mm 1,2
(F22)
 
HONDA F20C & F22C S2000 w/99mm K24 Crank
(FRM cylinders MUST run SLEEVED bores)
K1 Rods Available   Optional K1 Rods Available!
Piston # Price/
Set		 Bore
MM/Inch		 Oversizes Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp Ratio Pin
Dia.		 Notes Buy
Now
Inches K544M87 $537 87.00/3.425 Std. 3.897 5.646 1.219 52.5 -14 9.4 .866 1
Metric K544M88 $537 88.00/3.464 .040 99 143.4 31 52.5 -14 9.4 22mm 1
  K544M89 $537 89.0/3.504 .080 99 143.4 31 52.5 -14 9.4 22mm 1
 
Acura/Honda B20 VTEC w/B16A Heads
Piston # Price/
Set		 Bore
MM/Inch		 Oversizes Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp Ratio Pin
Dia.		 Notes Buy
Now
Inches K623M84 $482 84.0 Std. - - 1.181 - Flat Top - - 1
Metric K623M845 $482 84.5 20 - - 1.181 - Flat Top - - 1
 
Honda Civic D17 2024-05
* = Custom Set, non-coated, not supplied with rings. Order RINGS separately here
K1 Rods Available   Optional K1 Rods Available! Part # 015BT12137
Piston # Price/
Set		 Bore
MM/Inch		 Oversizes Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp Ratio Pin
Dia.		 Notes Buy
Now
Inches K624M75 $537 75.0 Std. 3.716 5.394 1.063 33.5 -14cc 8.8:1 .748 1
Metric K624M755 $537 75.5 20 94.4 137 27 33.5 -14cc 8.8:1 19mm 1
Inches K624M75B $519* 75.0 Std. 3.716 5.394 1.063 33.5 F/T 10.6:1 .748 1
Metric K624M755B $519* 75.5 20 94.4 137 27 33.5 F/T 10.6:1 19mm 1
 
Honda FIT/Jazz/City  (L15A 1.5L)
* = Custom Set, non-coated, not supplied with rings. Order RINGS separately here
K1 Rods Available   Optional K1 Rods Available! Part # 015BY10149
Piston # Price/
Set		 Bore
MM/Inch		 Oversizes Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp Ratio Pin
Dia.		 Notes Buy
Now
Inches K637M73 $566 73.00/2.874 Std. 3.520 5.866 1.030 - -11.5 9.8 .709 1
Metric K637M735 $566* 73.5 20 89.4 149 26.16 - -11.5 9.8 18mm 1, 3
  K637M74 $566* 74.0 40 89.4 149 26.16 - -11.5 9.8 18mm 1, 3
 
Honda/Acura Odyssey, Shuttle, MRV, Pilot, MDX V6 3.5L
* = Custom Set, non-coated, not supplied with rings. Order RINGS separately here
  Piston # Price/
Set		 Bore mm / Inch Over Sizes Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp. Ratio Pin Dia. Notes Buy  Now
Inches K045M890A $699* 89.00 Std. 93mm - - - DISH 9.5:1 22mm 1, 3
Metric K045M895A $699* 89.50 .020 93mm - - - DISH 9.5:1 22mm 1, 3
  K045M900A $699* 90.00 .040 93mm - - - DISH 9.5:1 22mm 1, 3
Inches K045M890B $699* 89.00 Std. 93mm - - - DISH 10:1 22mm 1, 3
Metric K045M895B $699* 89.50 .020 93mm - - - DISH 10:1 22mm 1, 3
  K045M900B $699* 90.00 .040 93mm - - - DISH 10:1 22mm 1, 3
Inches K045M890C $699* 89.00 Std. 93mm - - - F/T 10.4:1 22mm 1, 3
Metric K045M895C $699* 89.50 .020 93mm - - - F/T 10.4:1 22mm 1, 3
  K045M900C $699* 90.00 .040 93mm - - - F/T 10.4:1 22mm 1, 3
 
Honda Civic R18A1 (16V, SOHC) 2024-08
* = Custom Set, non-coated, not supplied with rings. Order RINGS separately here
  Piston # Price/
Set		 Bore mm / Inch Over Sizes Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp. Ratio Pin Dia. Notes Buy  Now
Inches K046M810A $519* 81.00 Std. 87.3mm 157.48mm 1.132 40.5 DISH 8.5:1 20mm 1, 3
Metric K045M815A $519* 81.50 .020 87.3mm 157.48mm 1.132 40.5 DISH 8.5:1 20mm 1, 3
  K045M820A $519* 82.00 .030 87.3mm 157.48mm 1.132 40.5 DISH 8.5:1 20mm 1, 3
Inches K046M810B $519* 89.00 Std. 87.3mm 157.48mm 1.132 40.5 DOME 10.5:1 20mm 1, 3
Metric K045M815B $519* 89.50 .020 87.3mm 157.48mm 1.132 40.5 DOME 10.5:1 20mm 1, 3
  K045M820B $519* 90.00 .030 87.3mm 157.48mm 1.132 40.5 DOME 10.5:1 20mm 1, 3
Inches K046M810C $519* 89.00 Std. 87.3mm 157.48mm 1.132 40.5 DOME 11:1 20mm 1, 3
Metric K046M815C $519* 89.50 .020 87.3mm 157.48mm 1.132 40.5 DOME 11:1 20mm 1, 3
  K046M820C $519* 90.00 .030 87.3mm 157.48mm 1.132 40.5 DOME 11:1 20mm 1, 3
Inches K046M810D $519* 89.00 Std. 87.3mm 157.48mm 1.132 40.5 DOME 12:1 20mm 1, 3
Metric K046M815D $519* 89.50 .020 87.3mm 157.48mm 1.132 40.5 DOME 12:1 20mm 1, 3
  K046M820D $519* 90.00 .030 87.3mm 157.48mm 1.132 40.5 DOME 12:1 20mm 1, 3
 
R18A • Civic 1.8L SOHC 16V i-VTEC
K1 Rods Available Optional K1 Rod for R18A Series: Part # 015BZ14158
Series # Price/
Set		 Bore
MM/Inch		 Oversizes Stroke Rod C.H. Head cc's Dome/Dish
Volume		 Comp Ratio Pin
Dia.		 Notes Buy
Now
K672M81AP$54581.00/3.189std3.437 6.2001.13240.-108.5:1 .7871
K672M815AP$54581.25/3.199.01087.3 157.528.7540.-108.5:1 20mm1
K672M82AP$54581.50/3.209.02087.3157.528.75 40.-108.5:120mm1
 
Notes:
* Non-coated, not supplied with rings (you can order RINGS separately here)
1 Most Wiseco Pistons have an offset pin. Pins must be offset same as OEM for quietest operation.
2 This piston is a flat top w/out valve pockets, to be used if verifying piston to valve and piston to head clearance.
3, B or * = Build to order (custom), Non-coated, not supplied with rings.
4 = This piston made w/stock compression height, which is very close to cylinder head. Use Cometic thick gasket if decking block.
5 There are different versions of this engine - do visual inspection of dish/valve pocket area to verify compatibility.
A = Piston Rings need to be adjusted
B or * = Will build to order (custom), Non-coated, not supplied with rings.
E = With valve pockets unline K557M series.
H = Based on Volvo rod 23mm. Ford OEM 21mm
R = Pin 20mm, OEM = 20.65mm (13/16)

Notes that apply to all Part #'s:
  • Some pistons are listed with a range of compression ratio's. The low number is determined w/an un-cut deck and the high number is determined w/.030 piston to cylinder head clearance.
  • Always check pistons to valve clearance - If using VTEC or like mechanisms- check w/longer duration higher lift lobe.
  • Always run at least .030 piston to head clearance including gasket thickness.
  • If piston appears to be different than expected, please do not hesitate to call Wiseco at 800-321-1364 to verify proper installation specifications.

 
 
 
 
 
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