90-0097 | Complete 74" Top End Replacement Kit For 1966-'78 Big Twins With O-ring Heads

$3,659.95
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S&S Cycle 90-0097

Features & Benefits

  • Provide everything you need to replace the top end of a 74" shovelhead engine.
  • S&S top end kits for shovelheads include a set of S&S Super Stock® cylinder heads, a pair of S&S® stock bore cylinders (37/16" for 74" and 31/2" for 80"), S&S 8:1 compression forged pistons, complete with rings and wristpins, manifold clamps, manifold seals, all required hardware, and gaskets.
  • 74" top end kits include S&S 106-5495 series 331/32" stroke pistons and o-ring style cylinder heads.
Install Instructions Download
Additional Install Instructions

FITMENT DISCLAIMER

Fitment information is provided as a general reference only and is not guaranteed for any motorcycle, whether stock or modified. Compatibility may vary by year, model, and individual configuration.

Customers are responsible for verifying fitment prior to purchase. House of Harley-Davidson assumes no liability for purchases made based on incorrect or unverified fitment information.

Please TEXT 414-282-2211 with any questions before ordering, or use the chat below.