S&S ENGINES FOR YOUR HARLEY®

What do you get when you combine the craftsmanship of S&S Cycle and the innovation of Star Racing? Something POWERFUL & FAST!

Dyno runs have the 126 making over 150 rear wheel horsepower and it delivers the most torque of any engine in its class - over 145 ft. lbs.

These 4-3/8" bore engines have similar general specifications to the original S&S "Tribute" 145 engines, but the new S&S 126 is a dual cam design combined with big valve B2 heads for ultimate performance.

For the rider who tours from sunup to sundown, the 126 delivers the massive horsepower you crave, in an engine that bolts directly into most stock chassis from 1999 and up, and is available with fuel injection or an S&S carburetor. Engine Specs & Dyno Chart

S&S Cycle offers a complete 124" engine to replace the existing Harley-Davidson® Twin Cam 88® engine in a stock chassis, making it easy to get the performance you want from your late model motorcycle.

Take out the stock engine and put in an S&S engine - that's all there is to it! Engines are available in silver powdercoat, wrinkle black powdercoat and polished finishes.

Engine Specs & Dyno Chart

Star Racing is now offering S&S Cycle 4-3/8" bore large displacement engines to racers and custom bike builders.

A sister to the S&S 126" engine, but with 4.813" stroke, the S&S Cycle 145 is the perfect engine for the serious motorcyclist.

Our 145 is currently powering a 2004 Road King® with minor frame modification. The engine is available with fuel injection or an S&S carburetor and come assembled or unassembled.

Engine Specs, Pics, Videos, Dyno Chart

S&S Cycle introduces an engine with a retro look, but with updated technology. The panhead engine, which was produced from 1948 until 1965, has been hailed as the coolest looking classic engine of all time.

The new P-Series engines from S&S capture that retro styling from the 50's and 60's, but with 21st century engineering. Keep in mind, that as cool as these motors look, they are not reproductions. These engines were built to run!

S&S P-series engines are available in three styles to fit 1948-'99 style chassis. One engine style is designed for 1954-'64 style primary applications. These 1955-'64 style P-series engines can also be installed in 1948-'54 chassis if a 1955-'64 style inner primary cover is used. Another engine fits 1965-'69 style chassis using the early alloy primary. Finally, for retro custom applications, an alternator/generator version is offered that will fit any stock or custom 1970-'99 style chassis.

Match your performance needs with a choice of displacements and compression ratios: 93", 93" high compression, or the big and bad 103" model. The 93H and 103" engines come standard with dual plugged heads. While S&S P93 and P93H engines will nearly always fit in stock chassis, P103 engines are .300" taller than stock and will not fit in stock frames without modification.

Engine Specs & Dyno Chart

New release - June 2010

Retro never gets old. The classic style of motorcycles of the past just can't be beat for coolness. The problem is, the good old days weren't always as good as we sometimes remember them – sometimes those old bikes could be cranky and unreliable. Now there's a way to tap into the coolness of retro style while maintaining modern dependability. The new KN-Kone motor combines the look of a knuckle, with the bullet-proof design and charging system of the 1970-'99 style alternator lower end. Engine Specs

S&S Cycle 113" engines are available in natural, black and polished finish, with either the S&S IST® or the S&S Super Stock® Ignition System.  The 113 is actually shorter than a stock 80" Harley Davidson® Evolution® engine by about .050", which makes it easy to fit into any stock 1984-'99 frame. 

In addition, engine life and dependability are better than you might expect from an engine this large.  In fact, IST equipped versions come with a full three year warranty.  Chrome plated billet gearcover, tappet guides, and die cast rocker covers, S&S roller rocker arms, S&S electric compression releases, the S&S High Volume High Pressure (HVHP) oil pump and an S&S Super G carburetor are standard features. 
Engine Specs & Dyno Chart

S&S has re-released their popular 111" with special features and great pricing. This is a 4 1/8 Bore by 4 1/8 Stroke which is going to produce less vibration and longer engine life. It has shorter than stock height which makes engine installation easy. Chrome plated rocker covers, tappet guides, and gear cover are included. It has an S&S 585 cam and lightweight single coil Sidewinder® valve springs to reduce valve train noise.  More Info

S&S offers an updated version of the V96 that makes it an even better value and a better “daily driver”. The main difference is the replacement of the SuperStock® cylinder heads and domed piston with S&S Performance Replacement heads and a flat topped piston. The design of the combustion chamber and piston used with the new heads make the new V96 less prone to knock. That’s a real plus in hot weather and in touring applications when the selection of fuel may be limited. Are we losing anything? S&S dyno tested the new V96 engine back to back with the old style V96 and the dyno curves are nearly identical.   Special pricing makes the V96 competitive with imported engines.   Engine Specs & Dyno Chart

S&S engine packages range from 120" to 139". All S&S Street Pro engines are 45° V-Twins, built with the S&S crankcases including the S&S gear drive cams.

The Street Pro engine is available with either dual cam or Evolution rear motor mounts. The engine comes complete with S&S Pro Stock style flywheel assembly, 8.500" billet aluminum rods with 1.500" crankpin, S&S cast Pro Stock cylinder heads with electronic compression releases and S&S Super D carburetors with air cleaner assemblies. 

 Engine Specs & Dyno Chart