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S&S Cycle Top End Kit

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Product may vary from photo(s).

Everyday Low Price: $2,069.99

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J&P Part: 432-994

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Description

S&S Cycle Top End Kit

Fitment Note: 74" engines have a stroke of 3-31/32" and 80" engines have a 4-1/4" stroke but the cylinder length for both engines is the same. The 74" piston is taller than the 80" piston, which results in the same piston-to-head clearance for both engines. While it is possible to install an 80" top end on a 74" engine, this will result in very low compression and poor performance. A 74" top end will bolt to an 80" crankcase but the pistons will contact the cylinder head due to the combination of the taller 74" pistons and the longer stroke of the 80" flywheels. Therefore, it is important to correctly identify the stroke of the engine before ordering a top end kit.

• These top end kits include a set of S&S Shovelhead-style cylinder heads, a pair of S&S stock bore cylinders 3-1/2″ for 80″ engines, Wiseco cast 8:1 compression pistons complete with rings and wristpins, manifold clamps, manifold seals, all required hardware, and gaskets

• Feature Wiseco 92-2600 series 4-1/4″ stroke pistons and rubber band style cylinder heads

• Pistons are pre-fit to the cylinders, so there is no machine work to be done and very little down time

Made In The USA This product was proudly made in the USA

Important Product Notes

Product Specs

Bore or Stroke: (4-1/4″ stroke)

Compression Ratio: 8:1

Displacement Size CI: 80″

Manufacturer Part Number: 90-0098

Seal or Gasket: O-Ring

Sold in Units: Kit

Upgrade or Replacement: Performance

Fitment

Select your motorcycle to guarantee fitment! Select A Motorcycle

Fitment Note: 74" engines have a stroke of 3-31/32" and 80" engines have a 4-1/4" stroke but the cylinder length for both engines is the same. The 74" piston is taller than the 80" piston, which results in the same piston-to-head clearance for both engines. While it is possible to install an 80" top end on a 74" engine, this will result in very low compression and poor performance. A 74" top end will bolt to an 80" crankcase but the pistons will contact the cylinder head due to the combination of the taller 74" pistons and the longer stroke of the 80" flywheels. Therefore, it is important to correctly identify the stroke of the engine before ordering a top end kit.

Click (+) to view all compatible models

Harley-Davidson® Models

Disc Glide Willie G Special FXDG : 1983
Electra Glide Classic FLHC : 1979–1981
Electra Glide Classic Side Car FLHCE : 1979–1981
Electra Glide FLH : 1981
Electra Glide FLH-80 : 1979–1980
Electra Glide Heritage FLH : 1981
Electra Glide Police FLHP : 1981
Electra Glide Police FLHP-80 : 1979–1980
Electra Glide Sport FLHS : 1980–1981
Low Rider FXS : 1981–1982
Low Rider FXS-80 : 1979–1980
Low Rider FXSB : 1983–1984
Sturgis Belt FXB : 1980–1982
Super Glide Disc Glide FXRDG : 1984
Super Glide Electric Start FXE : 1979–1984
Super Glide Fat Bob FXEF : 1980–1984
Super Glide Fat Bob FXEF 80CI : 1979
Super Glide II FXR : 1982–1984
Super Glide Low Rider FXRS : 1982–1984
Super Glide Police FXRP : 1984
Super Glide Sport Glide FXRT : 1983–1984
Touring Electra Glide Classic FLHC : 1982
Touring Electra Glide Classic FLHTC : 1983–1984
Touring Electra Glide FLH : 1982–1984
Touring Electra Glide Special Edition FLHX : 1984
Touring Electra Glide Sport FLHS : 1982–1984
Touring Electra Glide Standard FLHT : 1983
Touring Tour Glide Classic FLTC : 1981–1984
Touring Tour Glide FLT : 1980–1983
Wide Glide FXWG : 1980–1984

Customer Reviews

Overall Rating:
4/5 based on 6 ratings

5 by

I put this kit on a 79 FXS. Took my time and now I'm very happy with it. One thing, MAKE sure you adjust your valves after you put it all back together (rookie mistake had me chasing my tail). Will make your scoot just like new!

0 by

The guy at the part counter should been sweeping the floors, not selling parts

5 by

Nice set, should start building the Engine this week.

5 by

Great product everything it says fit is exact runs great

5 by

Hello, I recently purchased a Shovelhead top end kit and multiple small items. I was extremely happy with products and very quick shipment. I also made a technical inquiry and was treated very courteously and was well informed. Thanks for your help in getting me back on the road.

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Shipping Note

Additional oversized shipping charges will be applied for expedited shipments within the contiguous U.S. Shipping charges outside the contiguous U.S. are calculated by weight and dimension during checkout.

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