Fits: 1936-’47, 74" & 93" knucklehead Engines. Requires stock-style adjustable tappets.
Includes four aluminum non-adjustable pushrods.
The increase expansion of aluminum provides a quieter valve train.
Fitment
| Year(s) | Make | Model Code | Model |
|---|---|---|---|
| 1936-1947 | Harley-Davidson | — | Big Twin |
