Explore Lifestyle Cycles' Engine collection, which features high-quality parts designed to enhance your engine's power, speed, and capability.
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S&S CYCLE Engine Case - 4.125" Bore w/Stock Stud Pattern - Wrinkle Black - Twin Cam '07-'16
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Features Replacement Twin Cam "A" engine cases for stock H-D chassis only (carb and EFI) Features greater overall strength than stock crankcases S...
View full detailsS&S CYCLE Engine Case - Super Stock® Generator - Big Twin '48-'64
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Features Include crankcase bolts, washers and nuts, cylinder mounting studs, timing hole plug, magnetic drain plug, assorted breather and oil line...
View full detailsS&S CYCLE Engine Case - Super Stock Alternator Style - 3.500" - Evolution Big Twin
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Features 3.5" stock bore cylinder case for any stroke up to and including 5" and most stock length connecting rods Machined to accept an oil filte...
View full detailsS&S CYCLE Breather Valve - Crankcase - A Motor - Twin Cam '03-'06
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Features Solves the problem of oil carryover in Twin Cam "A" motors with stock oil pump Oil carryover is oil that comes out of your breather and a...
View full detailsS&S CYCLE Magnetic Oil Drain Plug
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Features Used on S&S crankcases manufactured after 05/01/2000 Made in the USA Replacement Part for OEM Number(s) 6034865 6034865A 6034865B ...
View full detailsS&S CYCLE Engine Case - 3.750" Bore w/Stock Stud Pattern - Wrinkle Black - Twin Cam
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Features Replacement Twin Cam "A" engine cases for stock H-D chassis only (carb and EFI) Features greater overall strength than stock crankcases S...
View full detailsS&S CYCLE Crankpin Nut For S&S Flywheels - Black
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Features Designed to fit L'81-'99 S&S® flywheels Made in the U.S.A. Specs Product Name Nut Type Crankpin Base Color Black Finish Mat...
View full detailsS&S CYCLE Crankcase - 3.937" Bore - Alternator Style - Wrinkle Black - Dyna '06-'16
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Features 4.125" bore crankcase can be used as a foundation for a custom engine or replacement for T111, T124, or T143 Stock looking, but stronger;...
View full detailsS&S CYCLE Crankcase - 4.125" Bore w/Stock Bolt Pattern - Wrinkle Black - Dyna '06-'17
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Features 4.125" bore crankcase can be used as a foundation for a custom engine or replacement for T111, T124, or T143 Stock looking, but stronger;...
View full detailsS&S CYCLE Engine Case - +4.000" Bore - Special Application - Evolution Big Twin '84-'99
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Features Designed for high performance engines with cylinder bores 4.000" Cam chest is moved outward 0.250" to allow crankcases to handle large cy...
View full detailsS&S CYCLE Engine Case - 3.750" Bore w/Stock Stud Pattern - 88A Engine Type - Wrinkle Black -Twin Cam '99-'06
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Features Replacement Twin Cam "A" engine cases for stock H-D chassis only (carb and EFI) Features greater overall strength than stock crankcases S...
View full detailsS&S CYCLE Engine Case - 4.125" Bore w/Stock Stud Pattern - 88A Engine Type - Wrinkle Black - Twin Cam
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Features Replacement Twin Cam "A" engine cases for stock H-D chassis only (carb and EFI) Features greater overall strength than stock crankcases S...
View full detailsS&S CYCLE Flywheel Assembly - 4-5/8" - w/o Sprocket Bearing Race - Twin Cam "B" w/124" S&S Motor '00 -'06
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Features S&S 3-piece flywheels with integral main shafts are the strongest yet, made from 4140 steel and feature a larger 1.671" crankpin Fits...
View full detailsS&S CYCLE Flywheel Assembly - 4-5/8" - 124" Big Twin '84-'99
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Features Replaces the original flywheels in S&S® 124" V124 engine for '84-'99 Big Twin Pinion and sprocket shafts are forged as part of the fl...
View full detailsS&S CYCLE Flywheel - 84" Stock Bore Stroker - Big Twin
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Features Stock Bore Stroker Flywheel Kit 84" Upgrades 74" and 80" Shovelhead engines to 84" displacement at approximately 8.4:1 or 7.3:1 compressi...
View full detailsS&S CYCLE Crankpin Assembly - +0.002" Oversize - Big Twin L'81-'99 (except '99 Twin Cam)
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Features For use in stock and S&S flywheels Includes crankpin, nuts and key Made in the USA Specs Product Name Crankpin Assembly Style O...
View full detailsS&S CYCLE Flywheel Assembly - 4-1/2" Stroke - Tapered Wrist Pin - 114" / 117" M8
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Features Perfect for gear drive camshafts Consistent balance and precision machining Balance gear is installed for easy installation Strong assemb...
View full detailsS&S CYCLE Flywheel Assembly - 4-3/8" Stroke - Tapered Wrist Pin - 107" M8
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Features Perfect for gear drive camshafts Consistent balance and precision machining Balance gear is installed for easy installation Strong assemb...
View full detailsS&S CYCLE Flywheel Assembly - 4-1/2" Stroke - Full Wrist Pin - 114" / 117" M8
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Features Perfect for gear drive camshafts Consistent balance and precision machining Balance gear is installed for easy installation Strong assemb...
View full detailsS&S CYCLE Flywheel Assembly - 4-3/8" Stroke - Full Wrist Pin - 107" M8
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Features Perfect for gear drive camshafts Consistent balance and precision machining Balance gear is installed for easy installation Strong assemb...
View full detailsS&S CYCLE Flywheel Assembly - 4-5/8" Stroke - Full Wrist Pin - 131" M8
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Features Perfect for gear drive camshafts Consistent balance and precision machining Balance gear is installed for easy installation Strong assemb...
View full detailsS&S CYCLE Rod Race and Bushing Set - Big Twin '41-'99 (except Twin Cam)
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Features Used to rebuild Big Twin and S&S V96, V107 and V113 connecting rods Contains hardened steel rod bearing races for front and rear rods...
View full detailsS&S CYCLE Wrist Pin Bushing - Big Twin
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Features Meets or exceeds fitment and wearability of OEM bushings Measures 0.767" x 0.895" x 1.077" Made in the USA Specs Product Name Bushing...
View full detailsS&S CYCLE Internal Retaining Ring - 5 pack
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Features Internal Retaining Ring Pack Specs Product Name Retaining Ring Type Internal Units 5 Pack Riding Style Street