Retrocycle Harley Motorcycle Parts


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Boonton, NJ 07005
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85078: S&S 3 5/8 BIG BORE DUAL PLUG SHOVELHEAD CYLINDER HEADS. FITS BIG TWINS 1966 TO 1984 VPN 90-1488

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S&S 3 5/8  BIG BORE DUAL PLUG SHOVELHEAD CYLINDER HEADS. FITS BIG TWINS 1966 TO 1984  VPN 90-1488
S&S Super Stock Cylinder Heads for Shovelhead Models
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S&S starts with the same high grade materials developed for air cooled aircraft engines. Machined using state-of-the-art CNC machines to ensure consistent quality. Heads are dimensionally the same as stock heads for bolt on installation. Fully compatible with OEM exhaust and intake manifolds clearance problems are nonexistent. Slightly different intake and exhaust port shapes typically yield a flow increase of 10 CFM. Complete assembled heads include S&S .550" lift springs, 1980 thru 1984 style cast iron valve guides and seals and collars and keepers. Includes all necessary gaskets and hardware. Installation of rocker box assemblies (not included) is done using hex cap screws provided. Available in stock bore with single plug and 35/8" bore with single or dual plugs.



Shipping dimensions: 11.50" x 18.00" x 11.00"
Approximate Weight: 26.10 lbs

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CCI-85078
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