HONDA K20A/K24A
It has been revived and re-released as a billet camshaft. Since billet camshafts are manufactured by machining a solid piece of forged material from a round billet, they offer superior fatigue resistance compared to camshafts made from cast materials and achieve high strength that is resistant to wear and impact.
Bolt-on Camshaft Series
This camshaft already adjusted the valve timing. It is bolt-on camshaft which can use with stock computer and valve spring.
Regular Camshaft Series
This series is a camshaft with the generality which it has from former times. And, this series can choose in the Camshaft Kit.
Advanced Camshaft Series
This series is for high power engine because the cam lift is high very much.
High Lift Camshafts for K20A/K24A
| Name | Spec (unit: mm) | PART # | MSRP(yen) | REMARKS | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| #1 (Pri) | #2 (Mid) | #3 (2nd) | VC | ||||||||
| Duration | Lift | Duration | Lift | Duration | Lift | ||||||
| Bolt-on Camshaft Series | |||||||||||
| Type0 | IN | 61 (244) | 8.2 | 76 (304) | 12.2 | 60 (240) | 7.5 | -.-- | 1004M-H025 | discontinued | Work with VTC |
| EX | 62 (248) | 8.5 | 76 (304) | 11.8 | 61 (244) | 7.8 | -.-- | 1004M-H125 | discontinued | ||
| Regular Camshaft Series | |||||||||||
| Type3 | IN | 61 (244) | 8.2 | 78 (312) | 12.5 | 60 (240) | 7.5 | -.-- | 1004M-H026 | discontinued |
[REQUIRED]Canceling a VTC [REQUIRED]Uprated valve spring |
| EX | 62 (248) | 8.5 | 78 (312) | 12.5 | 61 (244) | 7.8 | -.-- | 1004M-H126 | discontinued | ||
| Advanced Camshaft Series | |||||||||||
| Type4 | IN | 64 (256) | 9.0 | 79 (316) | 13.0 | 64 (256) | 9.0 | -.-- | 1004M-H027 | discontinued |
[REQUIRED]Canceling a VTC [REQUIRED]Uprated valve spring |
| EX | 64 (256) | 9.0 | 78 (312) | 13.0 | 64 (256) | 9.0 | -.-- | 1004M-H127 | discontinued | ||
- VC=Valve Clearance (cool conditions)
- ‡ The height of lift is the valve lift.
- ‡1 This camshaft cannot work with VTC. Require canceling the VTC system. And, another computer is required when canceled VTC.
- ‡2 This camshaft needs to use uprated valve springs.
About canceling a VTC
- You can invalidate VTC by fixing an intake cam sprocket. We recommend JUN Cam Slide Sprocket.
- Be careful of the installation of the camshaft because valve may hit piston when VTC was invalidated by the oil pressure or the electric control (using with the VTC cam sprocket).




