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Optimize your Honda K20A (JDM Type R, RSX Type S) or K20Z (Civic Si) engine for ultimate performance with our wide selection of aftermarket parts. From aggressive camshafts and high-strength valvetrain components to stroker kits, forged pistons, and robust connecting rods, build the ultimate K-series powerhouse for street or race.

Sale!
<b>AR8605</b> - Honda K20A2/Z3 Head ARP Head Studs

K20A / K20Z

AR8605 – Honda K20A2/Z3 Head ARP Head Studs

Original price was: $225.23.Current price is: $195.85.
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<b>AR8606</b> - Honda K24 Block w/K20A Head ARP Head Studs

K20A / K20Z

AR8606 – Honda K24 Block w/K20A Head ARP Head Studs

Original price was: $225.20.Current price is: $195.83.
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Sale!
<b>AR8900</b> - Connecting Rod Fastener/Rod Bolt - ARP2000 (3/8" x 1.600") - 1 only bolt

1FZFE

AR8900 – Connecting Rod Fastener/Rod Bolt – ARP2000 (3/8″ x 1.600″) – 1 only bolt

Original price was: $11.50.Current price is: $10.00.
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Sale!
<b>AR8901</b> - Connecting Rod Fastener/Rod Bolt - ARP2000 (7/16" x 1.600") - 1 only bolt

1FZFE

AR8901 – Connecting Rod Fastener/Rod Bolt – ARP2000 (7/16″ x 1.600″) – 1 only bolt

Original price was: $17.25.Current price is: $15.00.
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<b>AR8910</b> - Connecting Rod Fastener/Rod Bolt - ARP Custom Age 625+ (3/8" x 1.600") - 1 only bolt

1FZFE

AR8910 – Connecting Rod Fastener/Rod Bolt – ARP Custom Age 625+ (3/8″ x 1.600″) – 1 only bolt

Original price was: $51.75.Current price is: $45.00.
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<b>AR8918</b> - Connecting Rod Fastener/Rod Bolt - ARP Custom Age 625+ (7/16" x 1.600") - 1 only bolt

1FZFE

AR8918 – Connecting Rod Fastener/Rod Bolt – ARP Custom Age 625+ (7/16″ x 1.600″) – 1 only bolt

Original price was: $63.25.Current price is: $55.00.
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Sale!
<b>BC0040</b> - Honda K20A/K20Z/F20C/F22C Spring/Titanium Retainer/Seat Kit

F20C / F22C - Valvetrain

BC0040 – Honda K20A/K20Z/F20C/F22C Spring/Titanium Retainer/Seat Kit

Original price was: $560.21.Current price is: $487.14.
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Sale!
<b>BC0040S</b> - Honda K20A/K20Z/F20C/F22C Spring/Steel Retainer/Seat Kit

F20C / F22C - Valvetrain

BC0040S – Honda K20A/K20Z/F20C/F22C Spring/Steel Retainer/Seat Kit

Original price was: $461.31.Current price is: $401.14.
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Sale!
<b>BC0040SX</b> - Honda K20A/K20Z/F20C/F22C Spring/Steel Retainer Kit

F20C / F22C - Valvetrain

BC0040SX – Honda K20A/K20Z/F20C/F22C Spring/Steel Retainer Kit

Original price was: $388.87.Current price is: $338.15.
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<b>BC0040T</b> - Honda K20A/K20Z Spring/Titanium Retainer/Seat Kit (High Lift)

F20C / F22C - Valvetrain

BC0040T – Honda K20A/K20Z Spring/Titanium Retainer/Seat Kit (High Lift)

Original price was: $560.21.Current price is: $487.14.
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<b>BC0040TS</b> - Honda K20A/K20Z Spring/Steel Retainer/Seat Kit (High Lift)

F20C / F22C - Valvetrain

BC0040TS – Honda K20A/K20Z Spring/Steel Retainer/Seat Kit (High Lift)

Original price was: $461.31.Current price is: $401.14.
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Sale!
<b>BC0040X</b> - Honda K20A/K20Z/F20C/F22C Spring/Titanium Retainer Kit

F20C / F22C - Valvetrain

BC0040X – Honda K20A/K20Z/F20C/F22C Spring/Titanium Retainer Kit

Original price was: $494.30.Current price is: $429.83.
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<b>BC0041-2</b> - Honda K20A/K20Z Stage 2 Camshafts - Forced Induction Spec

CAMSHAFTS

BC0041-2 – Honda K20A/K20Z Stage 2 Camshafts – Forced Induction Spec

Original price was: $1,093.93.Current price is: $951.24.
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Sale!
<b>BC0042-2</b> - Honda K20A/K20Z Stage 2 Camshafts - Normally Aspirated/High Boost

CAMSHAFTS

BC0042-2 – Honda K20A/K20Z Stage 2 Camshafts – Normally Aspirated/High Boost

Original price was: $1,093.93.Current price is: $951.24.
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Sale!
<b>BC0043-2</b> - Honda K20A/K20Z Stage 3 Camshafts - Normally Aspirated Spec

CAMSHAFTS

BC0043-2 – Honda K20A/K20Z Stage 3 Camshafts – Normally Aspirated Spec

Original price was: $1,093.93.Current price is: $951.24.
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Sale!
<b>BC0044</b> - Honda K20A Stroker Kit - 92mm Stroke/LightWeight Rods (B18A Journal)

K20A / K20Z

BC0044 – Honda K20A Stroker Kit – 92mm Stroke/LightWeight Rods (B18A Journal)

Original price was: $4,248.23.Current price is: $3,694.11.
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Sale!
<b>BC0044D</b> - Honda K24 DeStroker Kit - 92mm Stroke/MOAR Rods 6.050" (B18A Journal)

Automotive Parts

BC0044D – Honda K24 DeStroker Kit – 92mm Stroke/MOAR Rods 6.050″ (B18A Journal)

Original price was: $4,862.35.Current price is: $4,228.13.
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Sale!
<b>BC0044LW</b> - Honda K20A Stroker Kit - LW 92mm Stroke/LightWeight Rods (B18A journal)

K20A / K20Z

BC0044LW – Honda K20A Stroker Kit – LW 92mm Stroke/LightWeight Rods (B18A journal)

Original price was: $4,694.84.Current price is: $4,082.47.
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Sale!
<b>BC0045</b> - Honda K20A Stroker Kit - 92mm Stroke/ProH2K Long Rods (5.512"/B18A Journal)

K20A / K20Z

BC0045 – Honda K20A Stroker Kit – 92mm Stroke/ProH2K Long Rods (5.512″/B18A Journal)

Original price was: $4,248.23.Current price is: $3,694.11.
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<b>BC0048</b> - Honda K24 Stroker Kit - 102mm Stroke/LightWeight Rods (5.985"/B18A Journal)

K20A / K20Z

BC0048 – Honda K24 Stroker Kit – 102mm Stroke/LightWeight Rods (5.985″/B18A Journal)

Original price was: $4,248.23.Current price is: $3,694.11.
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Sale!
<b>BC0049</b> - Honda K24 Stroker Kit - 102mm Stroke/ProH2k Rods (5.985"/B18A Journal)

K20A / K20Z

BC0049 – Honda K24 Stroker Kit – 102mm Stroke/ProH2k Rods (5.985″/B18A Journal)

Original price was: $4,248.23.Current price is: $3,694.11.
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<b>BC2940</b> - Honda/Acura 5.5mm Billet Keepers/Locks (fits BC2010 and BC2011)

B16A B18C Parts

BC2940 – Honda/Acura 5.5mm Billet Keepers/Locks (fits BC2010 and BC2011)

Original price was: $124.52.Current price is: $108.28.
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Sale!
<b>BC3040-1</b> - Individual Honda/Acura K20A2/K20A/K20Z3 Intake Valves (35mm / STD) - 1 only valve

K20A / K20Z

BC3040-1 – Individual Honda/Acura K20A2/K20A/K20Z3 Intake Valves (35mm / STD) – 1 only valve

Original price was: $27.38.Current price is: $23.81.
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<b>BC3040</b> - Honda/Acura K20A2/K20A/K20Z3 Intake Valves (35mm / STD) - set/8

K20A / K20Z

BC3040 – Honda/Acura K20A2/K20A/K20Z3 Intake Valves (35mm / STD) – set/8

Original price was: $219.10.Current price is: $190.52.
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<b>BC3040B</b> - Honda/Acura K20A2/K20A/K20Z3 Black Nitride Intake Valves (35mm / STD) - set/8

Automotive Parts

BC3040B – Honda/Acura K20A2/K20A/K20Z3 Black Nitride Intake Valves (35mm / STD) – set/8

Original price was: $219.10.Current price is: $190.52.
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Sale!
<b>BC3041-1</b> - Individual Honda/Acura K20A2/K20A/K20Z3 Exhaust Valves (30mm / STD) - 1 only valve

K20A / K20Z

BC3041-1 – Individual Honda/Acura K20A2/K20A/K20Z3 Exhaust Valves (30mm / STD) – 1 only valve

Original price was: $27.38.Current price is: $23.81.
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Sale!
<b>BC3041</b> - Honda/Acura K20A2/K20A/K20Z3 Exhaust Valves (30mm / STD) - set/8

K20A / K20Z

BC3041 – Honda/Acura K20A2/K20A/K20Z3 Exhaust Valves (30mm / STD) – set/8

Original price was: $219.10.Current price is: $190.52.
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<b>BC3041B</b> - Honda/Acura K20A2/K20A/K20Z3 Black Nitride Exhaust Valves (30mm / STD) - set/8

Automotive Parts

BC3041B – Honda/Acura K20A2/K20A/K20Z3 Black Nitride Exhaust Valves (30mm / STD) – set/8

Original price was: $219.10.Current price is: $190.52.
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Sale!
<b>BC3044</b> - Honda/Acura K20A2/K20A/K20Z3 Intake Valves (36mm / +1mm) - set/8

K20A / K20Z

BC3044 – Honda/Acura K20A2/K20A/K20Z3 Intake Valves (36mm / +1mm) – set/8

Original price was: $219.10.Current price is: $190.52.
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Sale!
<b>BC3045</b> - Honda/Acura K20A2/K20A/K20Z3 Exhaust Valves (31mm / +1mm) - set/8

K20A / K20Z

BC3045 – Honda/Acura K20A2/K20A/K20Z3 Exhaust Valves (31mm / +1mm) – set/8

Original price was: $219.10.Current price is: $190.52.
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Sale!
<b>BC3904</b> - Honda K Series VTEC (K20A/Z, K24A) Intake Valve Guides

K20A / K20Z

BC3904 – Honda K Series VTEC (K20A/Z, K24A) Intake Valve Guides

Original price was: $92.93.Current price is: $80.81.
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Sale!
<b>BC3905</b> - Honda K Series VTEC (K20A/Z, K24A) Exhuast Valve Guides

K20A / K20Z

BC3905 – Honda K Series VTEC (K20A/Z, K24A) Exhuast Valve Guides

Original price was: $92.93.Current price is: $80.81.
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Sale!
<b>BC4020</b> - ACL Honda B18A/B Bearing Set - OEM Sizing / BC K-Series Stroker

B16A / B18C - Misc.

BC4020 – ACL Honda B18A/B Bearing Set – OEM Sizing / BC K-Series Stroker

Original price was: $272.60.Current price is: $237.04.
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Sale!
<b>BC4025</b> - ACL Honda K20A2/Z3 Bearing Set - OEM Sizing

K20A / K20Z

BC4025 – ACL Honda K20A2/Z3 Bearing Set – OEM Sizing

Original price was: $272.60.Current price is: $237.04.
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Sale!
<b>BC5047</b> - Honda/Acura K20 Crankshaft - 4340 Billet - 92mm Stroke w/OEM Rod Journal

CRANKSHAFTS

BC5047 – Honda/Acura K20 Crankshaft – 4340 Billet – 92mm Stroke w/OEM Rod Journal

Original price was: $2,779.72.Current price is: $2,417.15.
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Sale!
<b>BC5048</b> - Honda/Acura K20 Crankshaft - 4340 Billet - 92mm Stroke w/B18A Rod Journal

CRANKSHAFTS

BC5048 – Honda/Acura K20 Crankshaft – 4340 Billet – 92mm Stroke w/B18A Rod Journal

Original price was: $2,779.72.Current price is: $2,417.15.
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Sale!
<b>BC5048LW</b> - Honda K Series LightWeight Crankshaft - 4340 Billet - 92mm Stroke w/LS Journals (-5 lbs lighter)

CRANKSHAFTS

BC5048LW – Honda K Series LightWeight Crankshaft – 4340 Billet – 92mm Stroke w/LS Journals (-5 lbs lighter)

Original price was: $3,252.34.Current price is: $2,828.12.
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<b>BC5049-103</b> - Honda/Acura K24 Crankshaft - 4340 Billet - 103mm Stroke w/B18A Rod Journal

CRANKSHAFTS

BC5049-103 – Honda/Acura K24 Crankshaft – 4340 Billet – 103mm Stroke w/B18A Rod Journal

Original price was: $2,779.72.Current price is: $2,417.15.
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<b>BC5049-105</b> - Honda/Acura K24 Crankshaft - 4340 Billet - 105mm Stroke w/B18A Rod Journal

CRANKSHAFTS

BC5049-105 – Honda/Acura K24 Crankshaft – 4340 Billet – 105mm Stroke w/B18A Rod Journal

Original price was: $2,779.72.Current price is: $2,417.15.
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<b>BC5049-99 </b>- Honda/Acura K20 Crankshaft - 4340 Billet - 99mm Stroke w/B16A Rod Journal

CRANKSHAFTS

BC5049-99 – Honda/Acura K20 Crankshaft – 4340 Billet – 99mm Stroke w/B16A Rod Journal

Original price was: $2,779.72.Current price is: $2,417.15.
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