Sifton Knucklehead rocker arm shaft set.
Front intake measures 4-1/8" and has an actual ground surface of 4.115. Rear intake measures 3-5/8" and has an actual ground surface of 3.6. Rear exhaust measures 4-5/8" and has an actual ground surface of 4.6345. Front exhaust measures 5-1/4" and has an actual ground surface of 5.119.
Front intake measures 4-1/8" and has an actual ground surface of 4.115. Rear intake measures 3-5/8" and has an actual ground surface of 3.6. Rear exhaust measures 4-5/8" and has an actual ground surface of 4.6345. Front exhaust measures 5-1/4" and has an actual ground surface of 5.119.
FITS | EL 1936-1940 FL 1941-1947 |
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