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COMPLETE ASSEMBLED SH93, SH93H & SH103 ENGINES FOR 1966-’84 CHASSIS

 

 S&S shovelhead motorcycle engineNothing But The Best

S&S SH-Series engines for shovelheads are based on the S&S Sidewinder® big bore cylinders and stroker flywheels that they have offered since 1976.  Assembled with S&S crankcases, valve train components, electronic ignition, and S&S cylinder heads, these engines are topped off with great looking S&S polished billet rocker boxes. 

Engines are available with 1966-'69 generator style crankcases, 1970-'84 alternator style crankcases, or with custom alternator left/generator right crankcases.  Generator style engines feature the S&S polished billet electronic timer loaded with an S&S Super Stock® electronic ignition, and are now available with a polished billet gearcover. 

The S&S billet tappet guides, used on all SH-Series engines, are designed around the quiet, dependable hydraulic tappets used in 1984-'99 engines.   The result is an engine for shovelheads with the kind of quiet power that some folks may just have a hard time believing.

S&S shovelhead engine

Alt/Gen The Best of Both Worlds! S&S 93" alternator/generator engines have the perfect look for that "Retro" chopper, but give you the option of using a modern alternator charging system or a generator.  

If a generator is not used on the engine, the generator location is an excellent place to mount a spin-on oil filter; a billet oil filter mount is included with alternator/generator engines for this purpose.  In addition, the late style sprocket shaft and primary mounting surface makes it compatible with 1970-'99 primaries and 4, 5, and 6-speed transmissions.  

 

 You Have Choices!

SH-Series engines are available in three versions: SH93, SH93H, and SH103.  SH93 and SH93H engines are 93 cid engines and are available in generator, alternator, and alternator/generator styles. 

The SH103 engine is 103 cid, and is available in alternator style only.   SH93 engines feature cast pistons with a moderate compression ratio of 8 2:1 and a Super E carb.   The SH93 is a good choice for daily riders, and is great for touring applications. 

The SH93H is a higher compression version of the SH93.  It uses forged pistons and slightly shorter cylinders to achieve a compression ratio of 10:1, and comes with a Super E carb.  The higher compression ratio requires a more aggressive cam and dual plugged cylinder heads.  The result is an engine with a little nastier attitude, with more peak horsepower and higher rpm capability. Recommended for high performance applications. 

The SH103 is the largest production engine that S&S and Flathead Power offer for  shovels,   This engine features forged pistons with a compression ratio of 10 7:1, a Super G carb, and dual plugged heads .  Unlike the SH93 and SH93H, the SH103 engine will not fit in a stock frame without modifications because the over-all height of the engine is 300" taller than stock.  This engine is recommended for high performance applications.

S&S SH-SERIES ENGINE SPECIFICATIONS

Engine

Displacement

Bore

Stroke

Carb

Camshaft

Piston Type

Compression Ratio

SH93

93”

3-5/8”

4-1/2”

Super E

S&S 585

S&S Cast

8.2:1

SH93H

93”

3-5/8”

4-1/2”

Super E

S&S 600

S&S Forged

10:1

SH103”

103”

3-5/8”

5”

Super G

S&S 640

S&S Forged

10.7:1

Note:  S&S SH93H engine contains 1984-’99 style S&S cam and Tappets.  **SH103 will not fit stock chassis – not for everyone!

                                                                                                                                                                                                             

 

COMPLETE CARBURETED SH-SERIES ENGINES

Engine

Application

Style

Warranty

 Billlet Gearcover

MSRP

Cast Gearcover

MSRP

SH 93

1966-’69 Chassis

Generator

Two Years

31-9977

Call

31-9906

Call

1970-’84 Chassis

Alternator

Two Years

31-9905

Call

31-9904

Call

Custom 1970-‘99

Alternator/Generator

Two Years

31-9979

Call

31-9917

Call

SH 93H

1966-’69 Chassis

Generator

Two Years

31-9978

Call

31-9909

Call

1970-’84 Chassis

Alternator

Two Years

31-9908

Call

31-9907

Call

Custom 1970-‘99

Alternator/Generator

Two Years

31-9980

Call

31-9918

Call

SH 103

1970-’84 Chassis

Alternator

Two Years

31-9919

Call

N/A

Call

 

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Harley Davidson®, Harley®, Twin Cam®, Evo®, and Shovelhead® are words used for reference only.