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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.


BC0041-2

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

8620 Billet - Short duration profile builds cylinder pressure by reducing overlap, high lift for ...

8620 Billet - Short duration profile builds cylinder pressure by reducing overlap, high lift for more air intake. Requires kit BC0040 or BC0040S. Adv Dur 296°/300° Dur @ .050 222°/224° Valve Lift (1.75:1) .520"/.497" Valve Lift (mm) 13.21/12.62

$ 799.59 $ 943.52


BC0042-2

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

8620 Billet - All motor (11.5:1+) or high boost (18lbs+). Use with CAI, H, E, ECU, A/F mods. Exce...

8620 Billet - All motor (11.5:1+) or high boost (18lbs+). Use with CAI, H, E, ECU, A/F mods. Excellent street manners and idle quality. Requires kit BC0040 or BC0040S. Adv Dur 304°/300° Dur @ .050 234°/228° Valve Lift (1.75:1) .525"/.472" Valve Lift (mm) 13.34/11.99 Cam Timing Tag

$ 799.59 $ 943.52


BC0043-2

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

8620 Billet - Intended for fully built engine. Extensive modifications, high compression pistons....

8620 Billet - Intended for fully built engine. Extensive modifications, high compression pistons. Also works on K24 all motor. Requires kit BC0040 or BC0040S. Adv Dur 314°/300° Dur @ .050 250°/244° Valve Lift (1.75:1) .525"/.518" Valve Lift (mm) 13.34/13.15 Cam Timing Tag

$ 799.59 $ 943.52


BC0046-2

BC0046-2 - Honda K20A/K20Z Stage 4 Camshafts - Normally Aspirated Spec

Aggressive profile designed for fully built engines with high compression (12.5:1 minimum) and mo...

Aggressive profile designed for fully built engines with high compression (12.5:1 minimum) and modifications. Aftermarket tuning is mandatory. 3 lobe design. Requires BC0040T kit. Adv Dur 324°/320° Dur @ .050 255°/248° Valve Lift (1.75:1) .564"/.509" Valve Lift (mm) 14.32/12.93 Cam Timing Tag

$ 1,085.16 $ 1,280.49


BC0046

BC0046 - Honda K20A/K20Z Stage 4 Camshafts - Normally Aspirated Spec - 1 Lobe

Aggressive profile designed for fully built engines with high compression (12.5:1 minimum) and mo...

Aggressive profile designed for fully built engines with high compression (12.5:1 minimum) and modifications. Aftermarket tuning is mandatory. 1 lobe design. Requires BC0040T kit. Adv Dur 324°/320° Dur @ .050 255°/248° Valve Lift (1.75:1) .564"/.509" Valve Lift (mm) 14.32/12.93 Cam Timing Tag

$ 1,340.17 $ 1,581.40


BC0047-2

BC0047-2 - Honda K20A/K20Z Stage 5 Camshafts - Normally Aspirated Spec - 3 Lobe

The ultimate high performance camshafts for the Honda K Series head. Race only. These cams are a ...

The ultimate high performance camshafts for the Honda K Series head. Race only. These cams are a three lobe format (3 lobe). Adv Dur 330°/330° Dur @ .050 258°/258° Valve Lift (1.75:1) .570"/.516" Valve Lift (mm) 14.50/13.11 Cam Timing Tag

$ 1,085.16 $ 1,280.49


BC0047

BC0047 - Honda K20A/K20Z Stage 5 Camshafts - Normally Aspirated Spec - 1 Lobe

The ultimate high performance camshafts for the Honda K Series head. Race only. These cams are a ...

The ultimate high performance camshafts for the Honda K Series head. Race only. These cams are a one lobe format (Mid lobe only). Adv Dur 330°/330° Dur @ .050 258°/258° Valve Lift (1.75:1) .570"/.516" Valve Lift (mm) 14.50/13.11 Cam Timing Tag

$ 1,340.17 $ 1,581.40


BC0056-2

BC0056-2 - Honda K20A/K20Z Stage 6 Camshafts - N/A Drag Race Only - 1 Lobe

8620 Billet - DRAG RACE ONLY. Single (MID) Lobe Only. Normally Aspirated. Requires kit BC0040T. ...

8620 Billet - DRAG RACE ONLY. Single (MID) Lobe Only. Normally Aspirated. Requires kit BC0040T. Adv Dur 320°/336° Dur @ .050 250°/262° Valve Lift (1.75:1) .598"/.560" Valve Lift (mm) 15.19/14.22 Cam Timing Tag

$ 1,085.16 $ 1,280.49


BC0056

BC0056 - Honda K20A/K20Z Stage 6 Camshafts - N/A Drag Race Only - 3 Lobe

8620 Billet - DRAG RACE ONLY. Three lobe format (3 lobe). Normally Aspirated. Requires kit BC0040...

8620 Billet - DRAG RACE ONLY. Three lobe format (3 lobe). Normally Aspirated. Requires kit BC0040T. Adv Dur 320°/336° Dur @ .050 250°/262° Valve Lift (1.75:1) .598"/.560" Valve Lift (mm) 15.19/14.22 Cam Timing Tag

$ 1,340.17 $ 1,581.40