- Precision-machined from cast iron
- Compatible with no-lead fuel and accept any type of valve-stem material
- Overall length of both intake and exhaust is 1.90"
- Made in the U.S.A.
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 1936-1947 | Harley-Davidson | EL V Twin 61 | |
| 1941-1947 | Harley-Davidson | FL V Twin 74 | |