These S&S? Super Stock? high performance cylinder heads are designed specifically for S&S? 4-1/8" bore V-Series engines for 1984-'99 HD? big twins. Heads are machined for the S&S? 4-1/8" cylinder stud pattern used on S&S? Special Application crankcases. 2.000" intake and 1.605" exhaust valves coupled with S&S? ports, supply plenty of air for these big motors. Machined for S&S? electric or manual compression releases. The manifold mounting surface machined to stock specifications so special length manifold/throttle body is required for engines that are not stock height. S&S? High performance valve springs allow the installation of camshafts with up to .650" lift. Compatible with stock rocker boxes, exhaust, and intake manifolds.
- air_freight_prohibited:
- false
- not_carb_approved:
- true
- carb_acknowledgement_required:
- true
- ltl_freight_required:
- false
- prop_65:
- Unknown
- part_type:
- powersports
- epa:
- N/A
- regular_stock:
- false
