S&S CYCLE 89 cc Super Stock® Cylinder Heads — Powder-coated Wrinkle Black – 99-06 Touring, 00-05 CVO, 00-05 Softail, 99-05 Dyna

Designed for heavy touring and high-compression engines, the 89 cc Super Stock® Cylinder Heads come fully assembled with springs and valves. They fit '99–'05 engines with a stock crankcase and perform best on motors over 103" or when used with high-compression pop-up pistons.

• Combustion chamber tuned to provide a slightly higher-than-stock but manageable compression ratio in larger-than-stock engines.
• Large 2.000" intake and 1.605" exhaust valves maintain port velocity for strong low- and midrange response while supplying enough air for slightly larger engines.
• S&S® high performance valve springs allow camshafts with up to .650" lift.
• Intake ports flow 264 CFM compared to stock heads at 182 CFM.
• Compatible with stock rocker boxes, exhaust, and intake manifolds.
• Includes heads and four long headbolts; reuse four long OEM headbolts.

Made in the USA. Must use S&S rocker boxes if S&S compression releases are used.