Standard Rocker Arm Shaft
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.
Country Of Origin: TAIWAN
OEM Cross Reference: 17435-39,17438-39,17441-39
16-1804 - Rocker Arm Bushing Reamer Tool
16-1848 - Rocker Arm Bushing and Roller Bearing Puller
Tech Notes: Shovelhead rocker arm shims may be used on the left side of the Knucklehead rocker arms to adjust end play. Available as 12-0704 (.005) 12-0710 (.007) 12-0715 (.015).