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 Camshaft - 510V - Evolution Big Twin
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Features S&S Cams are tested on the dyno, street and track before being offered to the public With hundreds of hours of testing on each cam, y...
View full detailsS&S CYCLE Camshaft - 585V - Evolution Big Twin
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Features S&S Cams are tested on the dyno, street and track before being offered to the public With hundreds of hours of testing on each cam, y...
View full detailsS&S CYCLE Quickee Pushrods - Adjustable - Evolution Big Twin '84-'99
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Features Features revolutionary design - allows quicker, easier installation without the removal of the rocker covers Threaded adjuster screws int...
View full detailsS&S CYCLE Hydraulic Tappets - Evolution Big Twin / XL
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Features Rollers have a larger-than-stock inner bearing race that reduces stress and increases axle life Each lifter body and plunger assembly is ...
View full detailsS&S CYCLE Roller Rocker Arms - 1.625 Rocker Ratio - Evolution Big Twin / Twin Cam / XL / XR1200 / Buell
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Features Forged from 8620 steel, heat-treated then shot-peened for additional strength and durability 3/4" long bushings instead of 1/2" long bush...
View full detailsS&S CYCLE Engine Case - Super Stock® Alternator Style - 3.500" - Evolution Big Twin '92-'00
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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 Engine Case - Super Stock® Big Bore - 3.625" - Evolution Big Twin '92-'00
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Features 3.625" big 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 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 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 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 Assembly - 4-250" Stroke - Carbureted Models - Evolution Big Twin '84-'98
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Features Made of high-strength forged steel and designed for stock and high-performance custom applications Special keyed 6° large diameter tapere...
View full detailsS&S CYCLE Billet Oil Pump Kit - Universal Cover - '92-'99 Big Twin
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Features Kit includes oil pump, universal cover with top and bottom feeds, mounting bolts, supply and return gears, drive shaft with keys and snap...
View full detailsS&S CYCLE Billet Oil Pump Kit with Gears - Standard Cover - Big Twin '92-'99
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Features Kit includes oil pump, universal cover with top and bottom feeds, mounting bolts, supply and return gears, drive shaft with keys and snap...
View full detailsS&S CYCLE Replacement Tappet Roller Kit - Evolution Big Twin
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Features High-quality tappet roller kit Rollers are made from 52100 bearing material and axles are made from 4340 chromoly Compatible with stock t...
View full detailsS&S CYCLE Cylinder Head Kit - Super Stock™ - Natural - Evolution Big Twin '88-'99
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Features S&S heads give great performance, and work with additional upgrades Compatible with stock 3-1/2" or 3-5/8" bore engines Fully assembl...
View full detailsS&S CYCLE Cylinder Head Kit - Super Stock™ - Black - Evolution Big Twin '88-'99
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Features S&S heads give great performance, and work with additional upgrades Compatible with stock 3-1/2" or 3-5/8" bore engines Fully assembl...
View full detailsS&S CYCLE Performance Replacement Head - Low Compression (82 cc) - Natural - Evolution Big Twin '84-'00
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Features Fully assembled, and include stainless steel valves and high-lift springs Optimized for smaller displacement engines Available to be used...
View full detailsS&S CYCLE Performance Replacement Head - Low Compression (82 cc) - Wrinkle Black - Evolution Big Twin '85-'00
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Features Fully assembled, and include stainless steel valves and high-lift springs Optimized for smaller displacement engines Available to be used...
View full detailsS&S CYCLE Performance Replacement Head - High Compression (76 cc) - Wrinkle Black - Evolution Big Twin '84-'00
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Features Fully assembled, and include stainless steel valves and high-lift springs Optimized for smaller displacement engines Available to be used...
View full detailsS&S CYCLE Performance Replacement Head - High Compression (76 cc) - Natural - Evolution Big Twin '84-'00
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Features Fully assembled, and include stainless steel valves and high-lift springs Optimized for smaller displacement engines Available to be used...
View full detailsS&S CYCLE Oil Pump Supply Idler Gear - Big Twin '84-'99
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Features Oil pump idler gear for Big Twin Models Specs Product Name Gear Type Oil Pump / Idler / Supply Units Each Riding Style Street
S&S CYCLE Oil Pump Return Drive Gear - Big Twin '84-'99
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Features Oil pump drive gear for Big Twin models Specs Product Name Gear Type Drive / Oil Pump / Return Units Each Riding Style Street
S&S CYCLE Oil Pump Return Idler Gear - Big Twin '84-'99
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Features Oil pump idler gear for Big Twin Models Specs Product Name Gear Type Idler / Return / Oil Pump Units Each Riding Style Street
S&S CYCLE Oil Pump Supply Drive Gear - Big Twin '84-'99
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Features Oil pump drive gear for Big Twin models Specs Product Name Gear Type Drive / Supply / Oil Pump Units Each Riding Style Street