Description
Proper tappet clearance is critical to cam longevity and reliable power delivery in Big Twin engines—and that’s where JIMS solid tappets earn their reputation. These precision-machined components maintain consistent valve timing across both cast iron and aluminum blocks, eliminating the guesswork and ensuring your engine breathes the way it was designed to. Whether you’re running a stocker or a high-lift cam, quality tappets are non-negotiable for durability.
The JIMS Standard Solid Tappet is hand-fitted with a .0002″ running fit in the hydraulic unit, meaning minimal tolerance stacking and maximum reliability. The segmented parabolic cup matches JIMS roller rockers seamlessly, and air-gauging quality control guarantees consistency part-to-part. Set your clearance to .0007″–.0012″ and you’re ready to ride.
- Billet bearing steel construction
- Hand-fitted hydraulic unit
- Segmented parabolic pushrod seat
- Compatible cast iron blocks
- Compatible aluminum blocks
- Ultra-precision air gauged
- .0002″ running fit tolerance
- .0007″–.0012″ clearance recommended
- 1948–1984 Big Twin fitment
- MPN: 2474-1
