- Interference double-spring design with damper for harmonic control.
- Includes locks, retainers and spring seats.
- Built for severe service and high-compression engines.
Active filters
Increases spring travel by .060" for improved suspension response. Precision-machined and made in the U.S.A.
Fits stock springs to add ~0.060" of travel on 1966–1984 74" and 80" motors; eases installation of B or #2 cams; made in the U.S.A.
Precision front engine mount plates for XL models—direct-fit installation and reliable alignment.
Seals cam covers to prevent oil leaks. Fits most cam covers. Made in the U.S.A.
Durable one-piece motor mount for reliable engine support. Bolts not included.
Heavy-duty components, 30% thicker than stock; includes choke/horn brackets and sockethead hardware for select part numbers.
Cast-iron construction meets or exceeds OEM tolerances; resists higher pressure and heat than stock.
Cast-iron cylinder that meets or exceeds OEM tolerances. Withstands greater pressure and heat than stock components.
OEM-quality cast aluminum replacement pistons; kits include two pistons, wrist pins and clips. Accept OEM or Hastings rings (sold separately).