Drop-in T143 long block built with S&S components for a high-performance upgrade that fits stock chassis.
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Braided stainless steel oil line for universal fit. Includes chrome compression fittings for easy installation. Measured overall, including fittings. Made in the USA.
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.
S&S T143 long block; includes cylinder heads, cam train, crankcases and oiling components. Does not include intake or ignition.
Four-gear set for gear-driven cams; includes secondary cam gears, outer cam drive gear, pinion drive gear, and mounting hardware.
Four-gear kit for gear-driven cams; includes secondary gears, cam drive, pinion, and mounting hardware. May increase valve-train noise — check clearances and follow S&S and Harley-Davidson procedures.
Turnkey V124 long-block for '84-'99 Evolution big twins or '70-'99 custom frames; includes S&S heads and forged internals.
Turnkey V124 long block for '84–'99 Evolution Big Twin and '70–'99 custom frames; includes S&S heads, 640 cam, forged components; made in USA.
Four-gear set for gear-driven cams; includes two secondary cam gears, outer cam drive and pinion gears, plus mounting hardware. Made in the USA.
High-compression long block including Super Stock™ heads, crankcase, high-flow oil pump, cam cover and 640 gear drive cams; oil line kit required. No fuel or ignition systems included.
- Four-gear set with two secondary cam gears and mounting hardware.
- May increase valve train noise; oversized and undersized options available.
- Made in the USA.
- Installer must verify clearances and follow S&S and Harley-Davidson procedures.
Black Edition MK136 engine with 475G camshaft. Made in the USA. For oil-cooled applications; closed-course competition use only.
Machined 6061 billet aluminum cam cover kit with polished or chrome finish and chrome-plated points cover.
Quality construction with exact dimensions ensures a leakproof fit. Sold each; two required per motor.
Complete 132" engine performance kit converts 114"/117" oil-cooled M8 to 132" with big-bore cylinders, performance-matched 550 cam, adjustable relief valve, and serviceable components.
Complete S&S top-end kit with heads, pre-fit forged pistons, and all necessary hardware for quick installation.
- Complete top-end assembly with heads, cylinders, pistons, and gaskets.
- Pistons pre-fit to cylinders for minimal downtime.
- Includes all hardware, clamps, and seals; made in the USA.
- Designed for S&S® T-Series T2 long block engines for Harley Davidson® big twins
- 2.000" intake and 1.605" exhaust valves with S&S® ports
- S&S® high performance valve springs support cam lift up to .650"
- Compatible with stock rocker boxes, exhaust, and intake manifolds
- Requires S&S valve cover gasket kit; not machined for compression releases