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J and P Cycles
J&P Cycles, Inc. was founded by John and Jill Parham in 1979. It sells motorcycle components, apparel, and gear for the American V-twin motorcycle rider.
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S&S Cycle 89cc Super Stock Cylinder Head Kit For Harley Twin Cam Features: High port flow gives great performance now, and more later when additional upgrades are done Heads are fully assembled with springs and valves Compression ratios vary depending on cylinder heads chosen, pistons used and engine displacement see Compression Ratios chart for specifications 89cc heads, best for motors over 103 or with high-compression pop-up pistons 2.000 intake and 1.605 exhaust and .640 springs Machined for compression releases unless noted otherwise (sold separately) S&S rocker boxes required when using S&S compression releases Do not include rocker arm components, intake manifold or gaskets Heads include four long headbolts, and reuse four long OEM headbolts Accept OEM intake manifolds Made in the USA
