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K20A3 / K24A

A USDM only production engine, the K20A3 and similar cylinder head configurations were developed for a performance, yet economical mindset. Although VTEC, it is only featured on the intake camshaft. The K20A3 is found in the 01-03 Civic Si while the K24A1 is in the 01-03 CR-V. The K24A4 is the most popular of them all due to the fact that was used to service the 03-up Accord as well as the 02-03 Element. Because of it's tall deck height (9.114"), the trend will be to take these blocks and use the K20A/K20Z head found in the 06-up Civic, 01-06 RSX-S for more rpm potential and added tuning ability. However there will be plenty of tuners wanting to stay true and run the original K20A3 head.
<b>BC3040-1</b> - Individual Honda/Acura K20A2/K20A/K20Z3 Intake Valves (35mm / STD) - 1 only valve

BC3040-1

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

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...

$ 23.81 $ 27.38

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

BC3041-1

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

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...

$ 23.81 $ 27.38

<b>BC3044-1</b> - Individual Honda/Acura K20A2/K20A/K20Z3 Intake Valves (36mm / +1mm) - 1 only valve

BC3044-1

BC3044-1 - Individual Honda/Acura K20A2/K20A/K20Z3 Intake Valves (36mm / +1mm) - 1 only v...

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...

$ 23.81 $ 27.38

<b>BC3045-1</b> - Individual Honda/Acura K20A2/K20A/K20Z3 Exhaust Valves (31mm / +1mm) - 1 only valve

BC3045-1

BC3045-1 - Individual Honda/Acura K20A2/K20A/K20Z3 Exhaust Valves (31mm / +1mm) - 1 only ...

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...

$ 23.81 $ 27.38