Active filters
Fits 88–110 ci engines; reverses rear cam rotation to allow higher lifts. Requires inner-cover modification and professional tools. Kit includes cams, gears, bearings, gasket and instructions. Made in the USA.
High-performance S&S T143 long block with CNC-machined heads and gear drive cams. Fits stock chassis; exhaust and induction components sold separately. Made in the USA.
Computer-designed, heat-treated alloy-steel cams. Four-gear set required for installation; installer must verify coil bind and valve clearances.
- Complete long block assembled with S&S high-performance components.
- T143-specific or custom exhaust required.
- Does not include carb/intake or ignition system.
- Fits in stock chassis; no cutting or frame modifications required.
- Computer-assisted cam design for precise timing
- Alloy steel billet construction with heat treatment
- Made in the USA
- Four-gear set required; installer must verify clearances
Complete V111 long-block for Evolution big twin fitment; ~30% more HP/torque, short-stroke design, HVHP oil pump, 4-1/8" x 4-1/8" bore/stroke, 9.8:1 compression.
Computer-aided cam design; alloy steel billet construction with heat treatment. Made in the USA. Requires four-gear set; installer must verify clearances prior to final assembly.
Complete V124 long-block with S&S heads and internals; bolts into stock or aftermarket EFI or carb setups. Made in USA.
Long block assembly with specially machined heads for stock-length intake manifolds. Includes Super Stock™ heads, high-flow oil pump, and 640 gear drive cams. Made in the USA.
High-quality OEM replacement component for securing cam bearings, offering a reliable fit and durable construction.
Essential shims for precise cam setup. Made in the USA.
Precision cam shims for accurate camshaft end-play adjustment. Made in the U.S.A.
Fits 1966–1984 Big Twin engines (except 1980–1981). Increases mid-range and top-end power; idle is unaffected. Check spring travel and clearances on 1980+ models.
Bolts into 1966–1984 Big Twin engines (except 1980–1981); increases mid- and high-rpm power while preserving idle.