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Acura K20 Performance Engine Parts

Acura K20 Performance Parts

The newest engine in the Honda tuning community. The "K Series" is Honda's mass produced version of the roller rocker valve train assembly found in the S2000. Less friction, more rpm potential, faster action cam profiles...this engine has untapped potential. First introduced in the JDM Integra Type-R in 2001, this engine put out a respectable 220HP @ 8000 rpm straight from the factory (DC5). The K20A also sees service in the JDM Civic Type-R, using the same compression and cam profiles. The first USDM production model was the K20A2 found in the 02-04 RSX-S. Other engines featuring the same head configuration include the K24A2 (TSX) that features a 9.114" deck height, the K20Z1 in the 05-06 RSX-S that includes various JDM Type-R add-ons like cams, throttle bodies, higher compression and Honda's answer to the tuning crowd, the K20Z3 found in the 2006-up Civic Si.

BrandPart NumberDescription
Pistons
WisecoWIS-K568M8686.00/3.386 Bore mm/Inch, 3.386 / 86 Stroke, 5.472 / 139 Rod Length, 9:1 Comp. Ratio
WisecoWIS-K568M86586.50/3.405 Bore mm/Inch, 3.386 / 86 Stroke, 5.472 / 140 Rod Length, 9:1 Comp. Ratio
WisecoWIS-K568M8787.00/3.425 Bore mm/Inch, 3.386 / 86 Stroke, 5.472 / 141 Rod Length, 9:1 Comp. Ratio
WisecoWIS-K568M87587.50/3.445 Bore mm/Inch, 3.386 / 86 Stroke, 5.472 / 142 Rod Length, 9:1 Comp. Ratio
WisecoWIS-K568M8888.00/3.464 Bore mm/Inch, 3.386 / 86 Stroke, 5.472 / 143 Rod Length, 9:1 Comp. Ratio
WisecoWIS-K568M8989.00/3.504 Bore mm/Inch, 3.386 / 86 Stroke, 5.472 / 144 Rod Length, 9:1 Comp. Ratio
WisecoWIS-K631M8686.00/3.386 Bore mm/Inch, 3.386 / 86 Stroke, 5.472 / 145 Rod Length, 98:1 Comp. Ratio
WisecoWIS-K631M86586.50/3.405 Bore mm/Inch, 3.386 / 86 Stroke, 5.472 / 146 Rod Length, 98:1 Comp. Ratio
WisecoWIS-K631M8787.00/3.425 Bore mm/Inch, 3.386 / 87 Stroke, 5.472 / 147 Rod Length, 98:1 Comp. Ratio
WisecoWIS-K631M87587.50/3.445 Bore mm/Inch, 3.386 / 88 Stroke, 5.472 / 148 Rod Length, 98:1 Comp. Ratio
WisecoWIS-K634M8787.00/3.425 Bore mm/Inch, 3.386 / 89 Stroke, 5.472 / 149 Rod Length, 11:1 Comp. Ratio
WisecoWIS-K634M87587.50/3.445 Bore mm/Inch, 3.386 / 90 Stroke, 5.472 / 150 Rod Length, 11:1 Comp. Ratio
WisecoWIS-K634M89 89.00/3.504 Bore mm/Inch, 3.386 / 91 Stroke, 5.472 / 151 Rod Length, 11:1 Comp. Ratio
WisecoWIS-K634M89589.50/3.524 Bore mm/Inch, 3.386 / 92 Stroke, 5.472 / 152 Rod Length, 11:1 Comp. Ratio
WisecoWIS-K573M8686.00/3.386 Bore mm/Inch, 3.386 / 93 Stroke, 5.472 / 153 Rod Length, 11.7:1 Comp. Ratio
WisecoWIS-K573M86586.50/3.405 Bore mm/Inch, 3.386 / 94 Stroke, 5.472 / 154 Rod Length, 11.7:1 Comp. Ratio
WisecoWIS-K573M8787.00/3.425 Bore mm/Inch, 3.386 / 95 Stroke, 5.472 / 155 Rod Length, 11.7:1 Comp. Ratio
WisecoWIS-K573M87587.50/3.445 Bore mm/Inch, 3.386 / 96 Stroke, 5.472 / 156 Rod Length, 11.7:1 Comp. Ratio
WisecoWIS-K573M8888.00/3.464 Bore mm/Inch, 3.386 / 97 Stroke, 5.472 / 157 Rod Length, 11.7:1 Comp. Ratio
WisecoWIS-K573M8989.00/3.504 Bore mm/Inch, 3.386 / 98 Stroke, 5.472 / 158 Rod Length, 11.7:1 Comp. Ratio
WisecoWIS-K650M8686.00/3.386 Bore mm/Inch, 3.386 / 99 Stroke, 5.472 / 159 Rod Length, 12.4:1 Comp. Ratio
WisecoWIS-K650M86586.50/3.405 Bore mm/Inch, 3.386 / 100 Stroke, 5.472 / 160 Rod Length, 12.4:1 Comp. Ratio
WisecoWIS-K650M8787.00/3.425 Bore mm/Inch, 3.386 / 101 Stroke, 5.472 / 161 Rod Length, 12.4:1 Comp. Ratio
WisecoWIS-K650M87587.50/3.445 Bore mm/Inch, 3.386 / 102 Stroke, 5.472 / 162 Rod Length, 12.4:1 Comp. Ratio
WisecoWIS-K650M8888.00/3.464 Bore mm/Inch, 3.386 / 103 Stroke, 5.472 / 163 Rod Length, 12.4:1 Comp. Ratio
WisecoWIS-K650M8989.00/3.504 Bore mm/Inch, 3.386 / 104 Stroke, 5.472 / 164 Rod Length, 12.4:1 Comp. Ratio
SupertechSUP-P4-HK86-N686 mm (86.02mm) BORE (mm), 3.386" STROKE, 5.472" ROD LENGTH, 9:1 COMP. RATIO, RING P/N GNH-8600
SupertechSUP-P4-HK86-P686 mm (86.02mm) BORE (mm), 3.386" STROKE, 5.472" ROD LENGTH, 11.2:1 COMP. RATIO, RING P/N GNH-8600
SupertechSUP-P4-HK86-P1186 mm (86.02mm) BORE (mm), 3.386" STROKE, 5.472" ROD LENGTH, 12:1 COMP. RATIO, RING P/N GNH-8600
SupertechSUP-P4-HK86-P1586.00 mm BORE (mm), 3.386" STROKE, 5.472" ROD LENGTH, 12.5:1 COMP. RATIO, RING P/N GNH-8600
SupertechSUP-P4-HK8650-N686.50 mm BORE (mm), 3.386" STROKE, 5.472" ROD LENGTH, 9:1 COMP. RATIO, RING P/N GNH-8650
SupertechSUP-P4-HK865-P686.50mm BORE (mm), 3.386" STROKE, 5.472" ROD LENGTH, 11.2:1 COMP. RATIO, RING P/N GNH-8650
SupertechSUP-P4-HK8650-P1186.50 mm BORE (mm), 3.386" STROKE, 5.472" ROD LENGTH, 12:1 COMP. RATIO, RING P/N GNH-8650
SupertechSUP-P4-HK8650-P1586.50mm BORE (mm), 3.386" STROKE, 5.472" ROD LENGTH, 12.5:1 COMP. RATIO, RING P/N GNH-8650
SupertechSUP-P4-HK87-P887.00mm BORE (mm), 3.386" STROKE, 5.472" ROD LENGTH, 11.5:1 COMP. RATIO, RING P/N GNH-8700
SupertechSUP-P4-HK87-P1587.00mm BORE (mm), 3.386" STROKE, 5.472" ROD LENGTH, 12.5:1 COMP. RATIO, RING P/N GNH-8700
ManleyMAN-610000C-486mm Bore Size, 5.472” Rod Length, 3.386” Stroke Stroke, 9.0:1 Compresion Ratio
ManleyMAN-610100C-486mm Bore Size, 5.472” Rod Length, 3.386” Stroke Stroke, 11.5:1 Compresion Ratio
ManleyMAN-610200C-486mm Bore Size, 5.472” Rod Length, 3.386” Stroke Stroke, 12.5:1 Compresion Ratio
JE PistonsJEP-20425586MM Bore , 3.386 Stroke, 5.472 Rod Length, 9.0:1 Comp Ratio
JE PistonsJEP-20425686MM Bore , 3.386 Stroke, 5.472 Rod Length, 10.6:1 Comp Ratio
Rods
EagleEGL-CRS5500K3DEagle H-Beam Length: 5.500 3/8” ARP 2000 Bolts
K1 TechnologiesK1T-HH5472AEGB-L4-AK1 Technologies 5.472” Honda H-Beam Billet Rods w/ARP2000 - Set of 4 for Honda K20 Lightweight (naturally aspirated)
K1 TechnologiesK1T-HH5472AEGB4-AK1 Technologies 5.472” Honda H-Beam Billet Rods w/ARP2000 - Set of 4 for Honda K20 Turbo
ManleyMAN-14014-4Manley H beam connecting rods - 5.472" rod length - 3/8" ARP 2000 Bolts
ManleyMAN-14014R6-4Manley H-Plus beam connecting rods - 5.472" rod length - 3/8" ARP 2000 Bolts
PauterPAU-HON-220-510-1389FPauter Rods Acura K20
Connecting Rod Bolts
ARP208-6003ARP Connecting Rod Bolts - K20 Rod Bolt Set
Crankshafts
Brian CrowerBC5048Brian Crower CRANKSHAFT - Honda/Acura K20, 92mm Stroke, Custom 4340 Billet
Brian CrowerBC5049Brian Crower CRANKSHAFT - Honda/Acura K24, 102mm Stroke, Custom 4340 Billet
Engine Bearings
ACLAEB-4B1972HRace Series Rod Bearings Acura/Honda K20A2/K24A
ACLAEB-4B1972HXRace Series Rod Bearings Acura/Honda K20A2/K24A
ACLAEB-5M1959HRace Series Main Bearings Honda/Acura
ACLAEB-5M1959HXRace Series Main Bearings Honda/Acura
ACLAEB-1T1957Race Series Thrust Washer Set Acura/Honda
Harmonic Damper
FluidamprFLD-570601Fluidampr Harmonic Damper Honda K Series Street Series
Head/Main Studs
ARPARP-208-4701ARP Head Stud Kit - Acura K20A (A2 & A3) / K24
Headgasket/Gasket Kits
Golden EagleGEM-GHG103-8787mm Honda K20/K24 Head Gasket
Golden EagleGEM-GHG103-8888mm Honda K20/K24 Head Gasket
Golden EagleGEM-GHG103-8989mm Honda K20/K24 Head Gasket
Golden EagleGEM-GHG103-9090mm Honda K20/K24 Head Gasket
Golden EagleGEM-GHG103-9191mm Honda K20/K24 Head Gasket
Camshafts
Brian CrowerBC0041Brian Crower CAMSHAFTS - STAGE 2 Boost (Honda/Acura K20A2/K20A/K24A2/K20Z3)
Brian CrowerBC0042Brian Crower CAMSHAFTS - STAGE 2 Normally Aspirated (Honda/Acura K20A2/K20A/K24A2/K20Z3)
Brian CrowerBC0043Brian Crower CAMSHAFTS - STAGE 3 Normally Aspirated (Honda/Acura K20A2/K20A/K24A2/K20Z3)
KelfordKEL-179-AK20A / K24A2 i-VTEC stage 1 Camshaft set to suit stock valve springs. The primary and Intermediate lobes are fractionally larger than the TSX and the main lobe features mor area for increased mid and top end performance. Requires ECU Tune.
KelfordKEL-179-BDesigned as a stage two racing camshaft set for the popular Honda K20a/K20Z & K24A2 engines. These camshafts offer large power gains in well built engines.
KelfordKEL-179-CWarning. These are not for street cars, they are for serious competition engines that have been built and tuned professionally.
KelfordKEL-179-T1Kelford Cams, turbo specific lobe designs feature aysemetrical valve motion to reduce the overlap area while retaining maximum area for improved cylinder fill (intake) and emptying (exhaust). Low lobes specifically designed to reduce compressor surge and high lobes that promote massive power gains., A Kelford Turbo cam is a well thought out design to make your turbo'd K series driveable and efficient.
Skunk 2SK2-305-05-0220K20A/ A2/ Z1/ Z3 & K24A2 2.0L DOHC I-VTEC - Stage 1 - In. 266° / 13.5 ; Ex. 262° / 12.5
Skunk 2SK2-305-05-0225K20A/ A2/ Z1/ Z3 & K24A2 2.0L DOHC I-VTEC - Stage 2 - In. 272° / 13.6 ; Ex. 276° / 12.6
Skunk 2SK2-305-05-0230K20A/ A2/ Z1/ Z3 & K24A2 2.0L DOHC I-VTEC - Stage 3 - In. 276° / 14.0 ; Ex. 282° / 13.0
Skunk 2SK2-305-05-0250K20A3 & K24A1/ A3/ A4/ A8 DOHC I-VTEC - Stage 1 - In. 233° / 11.4 ; Ex. 233° / 11.4
Skunk 2SK2-305-05-0255K20A3 & K24A1/ A3/ A4/ A8 DOHC I-VTEC - Stage 2 - In. 241° / 12.3 ; Ex. 246° / 11.8
Skunk 2SK2-305-05-0260K20A3 & K24A1/ A3/ A4/ A8 DOHC I-VTEC - Stage 3 - In. 251° / 12.8 ; Ex. 256° / 11.8
Skunk 2SK2-305-05-0265K20A3 & K24A1/ A3/ A4/ A8 DOHC I-VTEC - Turbo 1 - In. 220° / 10.4 ; Ex. 220° / 10.4
Springs/Retainer Kits
Brian CrowerBC0040Brian Crower DUAL SPRING/TITANIUM RETAINER/SPRING SEAT KIT - BC1040 Seat: 1.590" @ 80 lbs / Open: 1.110" @ 250 lbs / Coil Bind: 1.030" (no machine work required)
Brian CrowerBC0040XBrian Crower DUAL SPRING/TITANIUM RETAINER - NO SEAT - BC1040 Seat: 1.590" @ 80 lbs / Open: 1.110" @ 250 lbs / Coil Bind: 1.030" (no machine work required)
Brian CrowerBC0040SXBrian Crower DUAL SPRING/STEEL ALLOY RETAINER KIT - NO SEAT - BC1040 Seat: 1.590" @ 80 lbs / Open: 1.110" @ 250 lbs / Coil Bind: 1.030" (no machine work required)
SupertechSUP-SPRK-H1007BE-1Beehive Valve Spring Kit 75lbs @38.7mm SPR-H1007BE-1 + RET-H55BE-T1 + SEAT-HKBE1
SupertechSUP-SPRK-H1007BE-2Beehive Valve Spring Kit 90lbs @37.3mm SPR-H1007BE-1 + RET-H55BE-T1 + SEAT-HKBE1
SupertechSUP-SPRK-H1020DSupertech Dual Valve Spring Kit Honda F20 & K20A2- Dual Valve Spring Kit 100@ 40.4mm SPR-H1021D+RET-K20A2/T2+SEAT-H1020D
SupertechSUP-SPRK-H1021DSupertech Dual Valve Spring Kit Honda F20 & K20A2 - Dual Valve Spring Kit 92@ 40.4mm SPR-H1021D+RET-K20A2/T2+SEAT-H1020D
SupertechSUP-SPRK-H1022DSupertech Dual Valve Spring Kit Honda F20 & K20A2 - Dual Valve Spring Kit 80@ 40.4mm SPR-H1022D+RET-K20A2/T2+SEAT-H1020D
SupertechSUP-SPRK-M1007D_K2Supertech Dual Valve Spring Kit Honda K20A3-K24A3 - Dual Valve Spring Kit 82@39.80mm SPR-M1007D+RET-K20A3/T1+SEAT-HKA3
Valve Springs (ONLY)
ManleyMAN-22140-16Manley Valve Spring Kit - Honda K20A/K20Z - Set of 16 Valve Springs
SupertechSUP-SPR-H1020DSupertech Dual Valve Spring Kit - 100@ 40.4mm
SupertechSUP-SPR-H1021DSupertech Dual Valve Spring Kit - 92@ 40.4mm
SupertechSUP-SPR-H1022DSupertech Dual Valve Spring Kit - 80@ 40.4mm
SupertechSUP-SPR-M1007D_K2Supertech Dual Valve Spring Kit - Dual Valve Spring Kit 82@39.80mm
Skunk2SK2-311-05-5380 Skunk2 Pro Series Valve Springs for Honda/Acura
Skunk2SK2-311-05-0380Skunk2 Tuner Series Valve Springs for Honda/Acura
Retainers
Skunk2SK2-308-05-0410Skunk2 K-Series Titanium Retainers
SupertechSUP-RET-K20A3_T1Supertech Titanium Valve Spring Retainer Kit - 15.1mm Max Net Lift; 24.7mm Coil Bind; 10.5lbs/min Rate
SupertechSUP-RET-K20A2_T2Supertech Titanium Valve Spring Retainer Kit - 15mm Max Net Lift; 18.5mm Coil Bind; 12.9lbs/min Rate
Valves
SupertechSUP-HIVN-102035.00mm (std) Dish Black Nitrided Intake Valve
SupertechSUP-HIVN-1020F35.00mm (std) Flat Black Nitrided Intake Valve
SupertechSUP-HIVN-1021D35.5mm (+0.5) Dish Black Nitrided Intake Valve
SupertechSUP-HIVN-1021F35.5mm (+0.5) Flat Black Nitrided Intake Valve
SupertechSUP-HIVN-1022D36.0mm (+1.0) Dish Black Nitrided Intake Valve
SupertechSUP-HIVN-1022F36.0mm (+1.0) Flat Black Nitrided Intake Valve
SupertechSUP-HEVN-102030.0mm (std) Dish Black Nitrided / Inconel Exhaust Valve
SupertechSUP-HEVN-1020F30.0mm (Std) Flat Black Nitrided / Inconel Exhaust Valve
SupertechSUP-HEVI-1020D30.0mm (std) Dish Black Nitrided / Inconel Exhaust Valve
SupertechSUP-HEVN-1021D30.5mm (+0.5) Dish Black Nitrided / Inconel Exhaust Valve
SupertechSUP-HEVN-1021F30.5mm (+0.5) Flat Black Nitrided / Inconel Exhaust Valve
SupertechSUP-HEVI-1021D30.5mm (+0.5) Dish Black Nitrided / Inconel Exhaust Valve
GSCGSC-204130mm 23-8N material Black Nitride Exhaust Valve
GSCGSC-2041-830mm 23-8N material Black Nitride Exhaust Valve Kit
GSCGSC-204235mm 21-4N material Black Nitride Intake Valve
GSCGSC-2042-835mm 21-4N material Black Nitride Intake Valve Kit
GSCGSC-2043 31mm 23-8N material Black Nitride Exhaust Valve
GSCGSC-2043-831mm 23-8N material Black Nitride Exhaust Valve Kit
GSCGSC-204431mm 23-8N material Black Nitride Exhaust Valve
GSCGSC-2044-836mm 21-4N material Black Nitride Intake Valve Kit
ManleyMAN-11127-830.0 mm Head Diameter Set of 8 Stainless Exhaust Valves
ManleyMAN-11129-830.5 mm Head Diameter Set of 8 Stainless Exhaust Valves
ManleyMAN-11131-831.0 mm Head Diameter Set of 8 Stainless Exhaust Valves
ManleyMAN-11128-835.0 mm Head Diameter Set of 8 Stainless Steel Intake Valves
ManleyMAN-11130-835.5 mm Head Diameter Set of 8 Stainless Steel Intake Valves
ManleyMAN-11132-836.0 mm Head Diameter Set of 8 Stainless Steel Intake Valves
Skunk2SK2-310-05-25358-In, 8-Ex Std Comp, Standard Sized Tuner Series Valves
Skunk2SK2-310-05-25408-In, 8-Ex High Comp, Standard Sized Tuner Series Valves
Skunk2SK2-310-05-25378-In, 8-Ex Std Comp, +0.5mm Over Sized Tuner Series Valves
Skunk2SK2-310-05-25438-In, 8-Ex High Comp, +0.5mm Over Sized Tuner Series Valves
Skunk2SK2-310-05-25398-In, 8-Ex Std Comp, +1.0mm Over Sized Tuner Series Valves
Skunk2SK2-310-05-04311-Ex Standard Size, Std Comp, Tuner Series Valve
Skunk2SK2-310-05-04261-Ex Standard Size, High Comp, Tuner Series Valve
Skunk2SK2-310-05-04331-Ex +0.5mm Over Size, Std Comp, Tuner Series Valve
Skunk2SK2-310-05-04291-Ex +0.5mm Over Size, High Comp, Tuner Series Valve
Skunk2SK2-310-05-04441-Ex +1.0mm Over Size, Std Comp, Tuner Series Valve
Skunk2SK2- 310-05-04411-Ex Standard Size, Std Comp, Tuner Series Valve
Skunk2SK2- 310-05-04361-Ex Standard Size, High Comp, Tuner Series Valve
Skunk2SK2- 310-05-04431-Ex +0.5mm Over Size, Std Comp, Tuner Series Valve
Skunk2SK2- 310-05-04391-Ex +0.5mm Over Size, High Comp, Tuner Series Valve
Skunk2SK2- 310-05-04341-Ex +1.0mm Over Size, Std Comp, Tuner Series Valve
Skunk2SK2-310-05-5540Pro Series Valve Set (Stock Size K-Series DOHC I-VTEC) - High Comp
Skunk2SK2-310-05-5535Pro Series Valve Set (Stock Size K-Series DOHC I-VTEC) - Std Com
Brian CrowerBC304035.0mm Intake (standard head diameter)
Brian CrowerBC304130.0mm Exhaust (standard head diameter)
Brian CrowerBC304235.5mm Intake (+.5mm head diameter)
Brian CrowerBC304330.5mm Exhaust (+.5mm head diameter)
Brian CrowerBC304436.0mm Intake (+1mm head diameter)
Brian CrowerBC304531.0mm Exhaust (+1mm head diameter)
Valve Locks (Keepers)
SupertechSUP-KPR-6-6_LS6.6mm Honda Keeper - 7 degrees Needs two per Valve
Brian CrowerBC29407° Billet Keepers / Locks for 5.5mm Honda / Acura applications
Valve Guides
SupertechSUP-GDE-HK55-EK Series 5.5mm Exhaust valve guide, Manganese Bronze
SupertechSUP-GDE-HK55-IK Series 5.5mm Exhaust valve guide, Manganese Bronze
Valve Seals
SupertechSUP-VS-H5-5-I5.5mm Intake Valve Stem Seal / Honda / Polyacrylic
SupertechSUP-VS-H5-5-E5.5mm Exhaust Valve Stem Seal- Honda. Viton
GSCGSC-1040B, K, and H Series Valve Stem Seal Kit
Intake Manifold
Skunk2SK2-307-05-0310K-Series Pro Series Intake Manifold
Throttle Body
Skunk2SK2-309-05-0080 K-Series 70mm Pro Series Throttle Body
Skunk2SK2-309-05-0095 K-Series 74mm Black Series Pro Series Throttle Body
LEFT COLUMN
RIGHT COLUMN