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S&S Big Bore Engine Case - 31-0001

  • Part #: H66026
  • Manufacturer Part #: 31-0001
Our Price: $1,154.95
Ships In 3-4 Business Days

Overview of S&S Big Bore Engine Case - 31-0001

  • Each case is cast from A356-T6 heat-treated aluminum alloy
  • For big bore 3-5/8 in. motors for any stroke up to and including 5 in. and most stock length connecting rods
  • Designed to accept an oil filter assembly that mounts on the front of stock motor cases
  • All races are line-honed and breather cavity is precision machined to optimize breather timing for maximum oil scavenging
  • Also included are crankcase bolts, washers and nuts, cylinder mounting studs, timing hole plug, magnetic drain plug, assorted breather and oil line fittings, oil pressure switch (evolution cases), oil screen, spring and plug, sprocket shaft Timken bearing assembly and oil seal, pinion shaft main bearing race, cam needle bearing assembly, oil pump drive shaft bushing
  • All cases come with a M.S.O. (manufacturers statement of origin) and installation instructions
  • Evolution 84-91 style
  • Made in the U.S.A.

This item ships 3-4 business days after order is processed

Included Items:

(1) Crankcase assembly with (2) 1” bearing installed

(1) Crank positon sensor cover

(1) O-ring

(2) Small button head bolts

(1) ¼”-20 Aluminum plug

(4) 5/16”-24 x 5-3/4” Cylinder studs threaded on both ends

(1) 5/16”-24 x 4-15/16” Hex head bolt

(9) 5/16”-24 Hex nuts

(1) ¼”-28 x 5-7/16” Hex head bolt

(10) 5/16” Flat washers

(1) ¼”-28 Hex nut

(2) ¼” Flat washers

(1) Set screw

(4) 10-24 x 1” Socket cap head bolts

(1) Timing hole plug

(1) Crankcase oil screen

(1) Crankcase oil screen spring

(1) 45x64x9 Bearing

(1) O-ring

(1) Screw cover

(1) 45° Hose fitting – 1/8” male pipe x 1/8” female pipe

(1) Oil pressure switch assembly

(1) Drive sprocket spacer

(1) 45° Hose fitting – ¼” male pipe x 3/8” male hose

(2) ¼”/18 Pipe plugs

(2)1/8”-27 Pipe plug

(1) Straight hose fitting

Instructions

Specs for S&S Big Bore Engine Case - 31-0001

Type - Engine Replacement Parts Engine Case
Units Each
Weight 29.15 lbs

Specs for S&S Big Bore Engine Case - 31-0001

Type - Engine Replacement Parts Engine Case
Units Each
Weight 29.15 lbs

Fitment for S&S Big Bore Engine Case - 31-0001

See if this part fits your ride

Part H66026 fits the following machines

Harley-Davidson
  • 1984 Harley-Davidson Disc Glide - FXRDG
  • 1991 Harley-Davidson Dyna Sturgis - FXDB
  • 1987 Harley-Davidson Electra Glide - FLHT
  • 1986 Harley-Davidson Electra Glide - FLHT
  • 1985 Harley-Davidson Electra Glide - FLHT
  • 1991 Harley-Davidson Electra Glide Classic - FLHTC
  • 1990 Harley-Davidson Electra Glide Classic - FLHTC
  • 1989 Harley-Davidson Electra Glide Classic - FLHTC
  • 1988 Harley-Davidson Electra Glide Classic - FLHTC
  • 1987 Harley-Davidson Electra Glide Classic - FLHTC
  • 1986 Harley-Davidson Electra Glide Classic - FLHTC
  • 1985 Harley-Davidson Electra Glide Classic - FLHTC
  • 1984 Harley-Davidson Electra Glide Classic - FLHTC
  • 1991 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1990 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1989 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1990 Harley-Davidson Heritage Softail - FLST
  • 1989 Harley-Davidson Heritage Softail - FLST
  • 1988 Harley-Davidson Heritage Softail - FLST
  • 1987 Harley-Davidson Heritage Softail - FLST
  • 1986 Harley-Davidson Heritage Softail - FLST
  • 1991 Harley-Davidson Heritage Softail Classic - FLSTC
  • 1990 Harley-Davidson Heritage Softail Classic - FLSTC
  • 1989 Harley-Davidson Heritage Softail Classic - FLSTC
  • 1988 Harley-Davidson Heritage Softail Classic - FLSTC
  • 1987 Harley-Davidson Heritage Softail Classic - FLSTC
  • 1985 Harley-Davidson Low Glide - FXRS
  • 1984 Harley-Davidson Low Glide - FXRS
  • 1985 Harley-Davidson Low Glide Custom - FXRC
  • 1991 Harley-Davidson Low Rider - FXRS
  • 1990 Harley-Davidson Low Rider - FXRS
  • 1989 Harley-Davidson Low Rider - FXRS
  • 1988 Harley-Davidson Low Rider - FXRS
  • 1987 Harley-Davidson Low Rider - FXRS
  • 1986 Harley-Davidson Low Rider - FXRS
  • 1985 Harley-Davidson Low Rider - FXSB
  • 1987 Harley-Davidson Low Rider Chrome - FXRC
  • 1991 Harley-Davidson Low Rider Convertible - FXRS-CONV
  • 1990 Harley-Davidson Low Rider Convertible - FXRS-CONV
  • 1991 Harley-Davidson Low Rider Custom - FXLR
  • 1990 Harley-Davidson Low Rider Custom - FXLR
  • 1989 Harley-Davidson Low Rider Custom - FXLR
  • 1988 Harley-Davidson Low Rider Custom - FXLR
  • 1987 Harley-Davidson Low Rider Custom - FXLR
  • 1993 Harley-Davidson Low Rider Sport - FXRS-SP
  • 1992 Harley-Davidson Low Rider Sport - FXRS-SP
  • 1991 Harley-Davidson Low Rider Sport - FXRS-SP
  • 1990 Harley-Davidson Low Rider Sport - FXRS-SP
  • 1989 Harley-Davidson Low Rider Sport - FXRS-SP
  • 1988 Harley-Davidson Low Rider Sport - FXRS-SP
  • 1991 Harley-Davidson Softail - FXST
  • 1990 Harley-Davidson Softail - FXST
  • 1989 Harley-Davidson Softail - FXST
  • 1988 Harley-Davidson Softail - FXST
  • 1987 Harley-Davidson Softail - FXST
  • 1986 Harley-Davidson Softail - FXST
  • 1985 Harley-Davidson Softail - FXST
  • 1984 Harley-Davidson Softail - FXST
  • 1991 Harley-Davidson Softail Custom - FXSTC
  • 1990 Harley-Davidson Softail Custom - FXSTC
  • 1989 Harley-Davidson Softail Custom - FXSTC
  • 1988 Harley-Davidson Softail Custom - FXSTC
  • 1987 Harley-Davidson Softail Custom - FXSTC
  • 1986 Harley-Davidson Softail Custom - FXSTC
  • 1991 Harley-Davidson Softail Fat Boy - FLSTF
  • 1990 Harley-Davidson Softail Fat Boy - FLSTF
  • 1991 Harley-Davidson Softail Springer - FXSTS
  • 1990 Harley-Davidson Softail Springer - FXSTS
  • 1989 Harley-Davidson Softail Springer - FXSTS
  • 1988 Harley-Davidson Softail Springer - FXSTS
  • 1991 Harley-Davidson Sport Glide - FXRT
  • 1990 Harley-Davidson Sport Glide - FXRT
  • 1989 Harley-Davidson Sport Glide - FXRT
  • 1988 Harley-Davidson Sport Glide - FXRT
  • 1987 Harley-Davidson Sport Glide - FXRT
  • 1986 Harley-Davidson Sport Glide - FXRT
  • 1985 Harley-Davidson Sport Glide - FXRT
  • 1984 Harley-Davidson Sport Glide - FXRT
  • 1986 Harley-Davidson Sport Glide Grand Touring - FXRD
  • 1991 Harley-Davidson Super Glide - FXR
  • 1990 Harley-Davidson Super Glide - FXR
  • 1989 Harley-Davidson Super Glide - FXR
  • 1988 Harley-Davidson Super Glide - FXR
  • 1987 Harley-Davidson Super Glide - FXR
  • 1986 Harley-Davidson Super Glide - FXR
  • 1985 Harley-Davidson Super Glide - FXR
  • 1984 Harley-Davidson Super Glide - FXR
  • 1985 Harley-Davidson Super Glide Fat Bob - FXEF
  • 1991 Harley-Davidson Tour Glide Classic - FLTC
  • 1990 Harley-Davidson Tour Glide Classic - FLTC
  • 1989 Harley-Davidson Tour Glide Classic - FLTC
  • 1988 Harley-Davidson Tour Glide Classic - FLTC
  • 1987 Harley-Davidson Tour Glide Classic - FLTC
  • 1986 Harley-Davidson Tour Glide Classic - FLTC
  • 1985 Harley-Davidson Tour Glide Classic - FLTC
  • 1984 Harley-Davidson Tour Glide Classic - FLTC
  • 1991 Harley-Davidson Tour Glide Ultra Classic - FLTCU
  • 1990 Harley-Davidson Tour Glide Ultra Classic - FLTCU
  • 1989 Harley-Davidson Tour Glide Ultra Classic - FLTCU
  • 1986 Harley-Davidson Wide Glide - FXWG
  • 1985 Harley-Davidson Wide Glide - FXWG
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Instructions and Manuals for S&S Big Bore Engine Case - 31-0001

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