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K20A / K20Z

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.

 

After years of high end race and dyno testing, BC has released a line of 8620 steel billet camshafts that deliver the ultimate in high performance. Made from aerospace grade, 8620 steel billet material and CNC ground on state-of-the-art cam grinders, these BC cams deliver the utmost in rigidity at extended rpm range while reducing possible valve float. These are the best cams money can buy and are now available for all stages…including the popular Stage 2 all motor profile.


BC0040

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

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, supe...

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. Type BC1040 Dual Free Length 2.025" Seat 1.590" @ 80 lbs Open 1.110" @ 250 lbs Coil Bind 1.030" Retainer BC2010 Spring Seat BC2904 Net Cam Lift 0.550" / 13.97mm

$ 500.48 $ 590.57


BC0040S

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

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, supe...

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. Type BC1040 Dual Free Length 2.025" Seat 1.590" @ 80 lbs Open 1.110" @ 250 lbs Coil Bind 1.030" Retainer BC2011 Spring Seat BC2904 Net Cam Lift 0.550" / 13.97mm

$ 412.13 $ 486.31


BC0040SX

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

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, supe...

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. Type BC1040 Dual Free Length 2.025" Seat 1.590" @ 80 lbs Open 1.110" @ 250 lbs Coil Bind 1.030" Retainer BC2010 Spring Seat OEM Net Cam Lift 0.550" / 13.97mm

$ 347.42 $ 409.96


BC0040T

BC0040T - Honda K20A/K20Z Spring/Steel Retainer/Seat Kit (High Lift)

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, supe...

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. Type BC1040T Dual Free Length 2.030" Seat 1.590" @ 80 lbs Open 1.020" @ 215 lbs Coil Bind 0.870" Retainer BC2010 Spring Seat BC2904 Net Cam Lift 0.620" / 15.74mm

$ 593.98 $ 700.90


BC0040TS

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

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, supe...

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. Type BC1040 Dual Free Length 2.030" Seat 1.590" @ 80 lbs Open 1.020" @ 215 lbs Coil Bind 0.870" Retainer BC2011 Spring Seat BC2904 Net Cam Lift 0.620" / 15.74mm

$ 518.58 $ 611.92


BC0040X

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

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, supe...

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. Type BC1040 Dual Free Length 2.025" Seat 1.590" @ 80 lbs Open 1.110" @ 250 lbs Coil Bind 1.030" Retainer BC2010 Spring Seat OEM Net Cam Lift 0.550" / 13.97mm

$ 441.61 $ 521.10


BC2940

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

5.5mm Stem, 7í«̴́ Billet Keepers/Locks set/32 - NOTE: If running late model cylinder head (K20 af...

5.5mm Stem, 7í«̴́ Billet Keepers/Locks set/32 - NOTE: If running late model cylinder head (K20 after 2004), you may need to purchase BC2940 keepers to accommodate BC2010 or BC2011 retainers.

$ 100.12 $ 118.14


BC3040

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

BC valves are one piece design with a friction welded Stellite tip for the best possible performa...

BC valves are one piece design with a friction welded Stellite tip for the best possible performance. Every valve is made from premium grade, heat resistant stainless steel material to insure reliability with high boost and/or high rpm applications. The undercut stem above the head area not only reduces overall weight for extended rpm potential, but also significantly improves air/fuel flow in and out of the combustion chamber. Every valve is fully machined and features a swirl polished finis...

$ 159.79 $ 188.55


BC3041

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

BC valves are one piece design with a friction welded Stellite tip for the best possible performa...

BC valves are one piece design with a friction welded Stellite tip for the best possible performance. Every valve is made from premium grade, heat resistant stainless steel material to insure reliability with high boost and/or high rpm applications. The undercut stem above the head area not only reduces overall weight for extended rpm potential, but also significantly improves air/fuel flow in and out of the combustion chamber. Every valve is fully machined and features a swirl polished finis...

$ 159.79 $ 188.55


BC3044

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

BC valves are one piece design with a friction welded Stellite tip for the best possible performa...

BC valves are one piece design with a friction welded Stellite tip for the best possible performance. Every valve is made from premium grade, heat resistant stainless steel material to insure reliability with high boost and/or high rpm applications. The undercut stem above the head area not only reduces overall weight for extended rpm potential, but also significantly improves air/fuel flow in and out of the combustion chamber. Every valve is fully machined and features a swirl polished finis...

$ 159.79 $ 188.55


BC3045

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

BC valves are one piece design with a friction welded Stellite tip for the best possible performa...

BC valves are one piece design with a friction welded Stellite tip for the best possible performance. Every valve is made from premium grade, heat resistant stainless steel material to insure reliability with high boost and/or high rpm applications. The undercut stem above the head area not only reduces overall weight for extended rpm potential, but also significantly improves air/fuel flow in and out of the combustion chamber. Every valve is fully machined and features a swirl polished finis...

$ 159.79 $ 188.55


BC3904

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

5.5mm Intake - Manganese Silicon Aluminum Bronze

5.5mm Intake - Manganese Silicon Aluminum Bronze

$ 73.30 $ 86.49


BC3905

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

5.5mm Exhaust - Manganese Silicon Aluminum Bronze

5.5mm Exhaust - Manganese Silicon Aluminum Bronze

$ 73.30 $ 86.49