Big Bore Kits
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V-Twin - 11-1258 - 83 inch Evolution Big Bore Cylinder Kit
Motorshop
$743.19V-Twin - 11-1258 - 83 inch Evolution Big Bore Cylinder KitDescriptionEvolution 83" Big Bore bolt on silver cylinder kit includes 10:1 compression Wiseco forged dome piston kit, which have been honed...$743.19 -
S&S Cycle - Wrinkle Black 110" Bolt-In Sidewinder® 4" Big Bore Kit fits '07-'17 Twin Cam Engines
S&S Cycle
MSRP: $1,549.95$1,540.95S&S Cycle - Wrinkle Black 110" Bolt-In Sidewinder® 4" Big Bore Kit fits '07-'17 Twin Cam Engines This Big Bore Kit has a 10.5:1 compression ratio (W/ stock 85cc heads) that will transform your...MSRP: $1,549.95$1,540.95 -
S&S Cycle - 96" Big Bore Kit fits '84-'00 Evolution Big Twin Engines (3⅝" Bore, 4⅝" Stroke, 9.75:1 Compression Ratio W/ Stock Heads)
S&S Cycle
$1,489.95S&S Cycle - 96" Big Bore Kit fits '84-'00 Evolution Big Twin Engines (3⅝" Bore, 4⅝" Stroke, 9.75:1 Compression Ratio W/ Stock Heads) The cylinders featured in this kit are built with premium...$1,489.95 -
S&S Cycle - Black Powdercoat 95" Big Bore Kit fits '99-'06 Twin Cam Engines (3.875" Bore, 4" Stroke, 9.7:1 Comp. W/ Stock Heads)
S&S Cycle
$1,287.95S&S Cycle - Black Powdercoat 95" Big Bore Kit fits '99-'06 Twin Cam Engines (3.875" Bore, 4" Stroke, 9.7:1 Comp. W/ Stock Heads) This Big Bore Kit produces outstanding outcomes with stock cylinder...$1,287.95 -
S&S Cycle - Silver 100" Bolt-In Sidewinder® 4" Big Bore Kit fits '99-'06 Twin Cam Engines
S&S Cycle
MSRP: $1,594.95$1,540.95S&S Cycle - Silver 100" Bolt-In Sidewinder® 4" Big Bore Kit fits '99-'06 Twin Cam Engines This Big Bore Kit has a 10.5:1 compression ratio (W/ stock 85cc heads) that will transform your engine into...MSRP: $1,594.95$1,540.95 -
S&S Cycle - Wrinkle Black XL883 to 1200 Conversion Kit fits '86-'20 XL 883 Models
S&S Cycle
$1,128.95S&S Cycle - Wrinkle Black XL883 to 1200 Conversion Kit fits '86-'20 XL 883 Models This conversion kit installs in no time at all since the pistons are already fit to the cylinders, making them...$1,128.95 -
S&S Cycle - 110" Power Package fits '07-'17 Twin Cam Engines
S&S Cycle
$3,396.95S&S Cycle - 110" Power Package fits '07-'17 Twin Cam Engines S&S Cycle has created the largest big-bore kits available today, without doing crankcase mods! This kit increases displacement to 110"...$3,396.95 -
Out of stock
S&S Cycle - Big Bore Kit for M8 Harley Softail & Touring '17-Up
S&S Cycle
$929.95S&S Big Bore Kit for M8 Harley Softail & Touring '17-Up This S&S Big Bore Kit is for Milwaukee-Eight Harley Softail and Touring models 2017 and up, including Softail Heritage Classic and Breakout...$929.95 -
Revolution Performance - RP201-209W - Cylinder Kit - Monster Big Bore - 100" - Natural - Evolution Big Twin '84-'99
Revolution Performance
$1,499.95Revolution Performance Cylinder Kit - Monster Big Bore - 100" - Natural - Evolution Big Twin '84-'99 Fits: 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King, 1984-1999...$1,499.95 -
Revolution Performance - RP201-215W - Cylinder Kit - Monster Big Bore -109" - Natural - Evolution Big Twin '84-'99
Revolution Performance
$1,499.95Revolution Performance Cylinder Kit - Monster Big Bore -109" - Natural - Evolution Big Twin '84-'99 Fits: 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King, 1984-1999...$1,499.95 -
Revolution Performance - RP201-210W - Cylinder Kit - Monster Big Bore - 100" - Black w/Highlighted Fins - Evolution Big Twin '84-'99
Revolution Performance
$1,499.95Revolution Performance Cylinder Kit - Monster Big Bore - 100" - Black w/Highlighted Fins - Evolution Big Twin '84-'99 Fits: 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road...$1,499.95 -
Revolution Performance - RP301-207W - Piston Kit - 85" - 9.0:1 Flat Top - Evolution - Fits 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King & More
Revolution Performance
$495.95Revolution Performance Piston Kit - 85" - 9.0:1 Flat Top - Evolution Fits: 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King, 1984-1999 Softail, 1991-1998 Dyna, 1984-1991...$495.95 -
Revolution Performance - RP301-208W - Piston Kit - 85" - 10.3:1 Domed - Evolution - Fits 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King & More
Revolution Performance
$495.95Revolution Performance Piston Kit - 85" - 10.3:1 Domed - Evolution Fits: 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King, 1984-1999 Softail, 1991-1998 Dyna, 1984-1991...$495.95 -
S&S Cycle - 31-0004 - Engine Case - Super Stock® Big Bore - 3.625" - Big Twin - Fits 1970-1984 Electra Glide / Street Glide, 1983 Dyna, 1982-1983 FXR & More
S&S Cycle
$1,995.95S&S Cycle Engine Case - Super Stock® Big Bore - 3.625" - Big Twin Fits: 1970-1984 Electra Glide / Street Glide, 1983 Dyna, 1982-1983 FXR, 1970-1984 Big Twin Harley-Davidson. Full year/model list is...$1,995.95 -
S&S Cycle - 91-9130 - 93" Sidewinder® Big Bore Stroker Engine Performance Kit- High Compression - Fits 1970-1984 Electra Glide / Street Glide, 1983 Dyna, 1982-1983 FXR & More
S&S Cycle
$3,795.95S&S Cycle 93" Sidewinder® Big Bore Stroker Engine Performance Kit- High Compression Fits: 1970-1984 Electra Glide / Street Glide, 1983 Dyna, 1982-1983 FXR, 1970-1984 Big Twin Harley-Davidson. Full...$3,795.95 -
S&S Cycle - 310-1395A - Power Pack - Oil Cooled - 496 Chain Drive - Wrinkle Black w/Highlight - M8
S&S Cycle
$3,294.95S&S Cycle - 310-1395A - Power Pack - Oil Cooled - 496 Chain Drive - Wrinkle Black w/Highlight - M8FeaturesBig bore bolt-on kit increases 107" M8 to 129" with no case machining requiredS&S oil...$3,294.95 -
S&S Cycle - 310-1400A - Power Package - Water Cooled - 496 Chain Drive - Black Granite w/Highlight - M8
S&S Cycle
$3,294.95S&S Cycle - 310-1400A - Power Package - Water Cooled - 496 Chain Drive - Black Granite w/Highlight - M8FeaturesBig bore bolt-on kit increases your 114"/117" with 4.50" stroke M8 to 132" with no case...$3,294.95 -
S&S Cycle - 310-1393A - Power Package - Oil Cooled - 496 Gear Drive - Wrinkle Black w/Highlight - M8
S&S Cycle
$3,497.95S&S Cycle - 310-1393A - Power Package - Oil Cooled - 496 Gear Drive - Wrinkle Black w/Highlight - M8FeaturesBig bore bolt-on kit increases your 114"/117" with 4.50" stroke M8 to 132" with no case...$3,497.95 -
S&S Cycle - 310-1238D - Power Pack - Oil Cooled - 550G - Black Granite w/Highlight - Chrome Pushrod Tubes - 114"/117" M8
S&S Cycle
$3,497.95S&S Cycle - 310-1238D - Power Pack - Oil Cooled - 550G - Black Granite w/Highlight - Chrome Pushrod Tubes - 114"/117" M8FeaturesUpdated profile4.32" bore cylinders with 11.0:1 compression ratio...$3,497.95 -
S&S Cycle - 310-1398A - Power Pack - Oil Cooled - 496 Gear Drive - Wrinkle Black w/Highlight - M8
S&S Cycle
$3,497.95S&S Cycle - 310-1398A - Power Pack - Oil Cooled - 496 Gear Drive - Wrinkle Black w/Highlight - M8FeaturesBig bore bolt-on kit increases 107" M8 to 129" with no case machining requiredS&S oil pump/cam...$3,497.95 -
S&S Cycle - 310-1109D - Power Pack - Oil Cooled - 550C - Black Granite w/Highlight - Chrome Pushrod Tubes - M8
S&S Cycle
$3,294.95S&S Cycle - 310-1109D - Power Pack - Oil Cooled - 550C - Black Granite w/Highlight - Chrome Pushrod Tubes - M8FeaturesUpdated profileForged pistonsMade in the USAIncludes oil pump/cam plate,...$3,294.95 -
S&S Cycle - 310-1108D - Power Pack - Water Cooled - 550G - Black Granite w/Highlight - Chrome Pushrod Tubes - M8
S&S Cycle
$3,497.95S&S Cycle - 310-1108D - Power Pack - Water Cooled - 550G - Black Granite w/Highlight - Chrome Pushrod Tubes - M8FeaturesUpdated profileForged pistonsMade in the USAIncludes oil pump/cam plate,...$3,497.95 -
S&S Cycle - 310-1104D - Power Pack - Oil Cooled - 550G - Wrinkle Black w/Highlight - Chrome Pushrod Tubes - M8
S&S Cycle
$3,497.95S&S Cycle - 310-1104D - Power Pack - Oil Cooled - 550G - Wrinkle Black w/Highlight - Chrome Pushrod Tubes - M8FeaturesUpdated profileForged pistonsMade in the USAIncludes oil pump/cam plate,...$3,497.95 -
S&S Cycle - 310-1235D - Power Pack - Water Cooled - 550C - Black Granite w/Highlight - Chrome Pushrod Tubes - 114"/117" M8
S&S Cycle
$3,294.95S&S Cycle - 310-1235D - Power Pack - Water Cooled - 550C - Black Granite w/Highlight - Chrome Pushrod Tubes - 114"/117" M8FeaturesUpdated profile4.32" bore cylinders with 11.0:1 compression ratio...$3,294.95 -
S&S Cycle - 310-1105D - Power Pack - Oil Cooled - 550C - Wrinkle Black w/o Highlight - Chrome Pushrod Tubes - M8
S&S Cycle
$3,294.95S&S Cycle - 310-1105D - Power Pack - Oil Cooled - 550C - Wrinkle Black w/o Highlight - Chrome Pushrod Tubes - M8FeaturesUpdated profileForged pistonsMade in the USAIncludes oil pump/cam plate,...$3,294.95 -
S&S Cycle - 310-1102D - Power Pack - Water Cooled - 550G - Wrinkle Black w/Highlight - Chrome Pushrod Tubes - M8
S&S Cycle
$3,497.95S&S Cycle - 310-1102D - Power Pack - Water Cooled - 550G - Wrinkle Black w/Highlight - Chrome Pushrod Tubes - M8FeaturesUpdated profileForged pistonsMade in the USAIncludes oil pump/cam plate,...$3,497.95 -
S&S Cycle - 310-1057D - Power Pack - Oil Cooled - 550C - Wrinkle Black w/o Highlight - Black Pushrod Tubes - M8
S&S Cycle
$3,294.95S&S Cycle - 310-1057D - Power Pack - Oil Cooled - 550C - Wrinkle Black w/o Highlight - Black Pushrod Tubes - M8FeaturesUpdated finsNo case machining requiredForged pistonsMade in the USAIncludes oil...$3,294.95 -
S&S Cycle - 310-1054D - Power Pack - Water Cooled - 550C - Wrinkle Black w/Highlight - Black Pushrod Tubes - M8
S&S Cycle
$3,294.95S&S Cycle - 310-1054D - Power Pack - Water Cooled - 550C - Wrinkle Black w/Highlight - Black Pushrod Tubes - M8FeaturesUpdated finsNo case machining requiredForged pistonsMade in the USAIncludes oil...$3,294.95 -
S&S Cycle - 310-1403A - Power Package - Water Cooled - 496 Gear Drive - Wrinkle Black w/Highlight - M8
S&S Cycle
$3,497.95S&S Cycle - 310-1403A - Power Package - Water Cooled - 496 Gear Drive - Wrinkle Black w/Highlight - M8FeaturesBig bore bolt-on kit increases your 114"/117" with 4.50" stroke M8 to 132" with no case...$3,497.95 -
S&S Cycle - 310-1401A - Power Package - Water Cooled - 496 Chain Drive - Wrinkle Black w/Highlight - M8
S&S Cycle
$3,294.95S&S Cycle - 310-1401A - Power Package - Water Cooled - 496 Chain Drive - Wrinkle Black w/Highlight - M8FeaturesBig bore bolt-on kit increases your 114"/117" with 4.50" stroke M8 to 132" with no case...$3,294.95 -
S&S Cycle - 310-1392A - Power Package - Oil Cooled - 496 Gear Drive - Wrinkle Black w/o Highlight - M8
S&S Cycle
$3,497.95S&S Cycle - 310-1392A - Power Package - Oil Cooled - 496 Gear Drive - Wrinkle Black w/o Highlight - M8FeaturesBig bore bolt-on kit increases your 114"/117" with 4.50" stroke M8 to 132" with no case...$3,497.95 -
S&S Cycle - 310-1394A - Power Pack - Oil Cooled - 496 Chain Drive - Wrinkle Black w/o Highlight - M8
S&S Cycle
$3,294.95S&S Cycle - 310-1394A - Power Pack - Oil Cooled - 496 Chain Drive - Wrinkle Black w/o Highlight - M8FeaturesBig bore bolt-on kit increases 107" M8 to 129" with no case machining requiredS&S oil...$3,294.95 -
S&S Cycle - 310-1228D - Power Pack - Oil Cooled - 550G - Wrinkle Black w/o Highlight - Black Pushrod Tubes - 107" M8
S&S Cycle
$3,497.95S&S Cycle - 310-1228D - Power Pack - Oil Cooled - 550G - Wrinkle Black w/o Highlight - Black Pushrod Tubes - 107" M8Features4.32" bore cylinders with 11.0:1 compression ratio forged pistonsS&S oil...$3,497.95 -
S&S Cycle - 310-1389A - Power Package - Oil Cooled - 496 Chain Drive - Wrinkle Black w/o Highlight - M8
S&S Cycle
$3,294.95S&S Cycle - 310-1389A - Power Package - Oil Cooled - 496 Chain Drive - Wrinkle Black w/o Highlight - M8FeaturesBig bore bolt-on kit increases your 114"/117" with 4.50" stroke M8 to 132" with no case...$3,294.95 -
S&S Cycle - 310-1237D - Power Pack - Oil Cooled - 550C - Black Granite w/Highlight - Chrome Pushrod Tubes - 114"/117" M8
S&S Cycle
$3,294.95S&S Cycle - 310-1237D - Power Pack - Oil Cooled - 550C - Black Granite w/Highlight - Chrome Pushrod Tubes - 114"/117" M8FeaturesUpdated profile4.32" bore cylinders with 11.0:1 compression ratio...$3,294.95 -
S&S Cycle - 310-1397A - Power Pack - Oil Cooled - 496 Gear Drive - Wrinkle Black w/o Highlight - M8
S&S Cycle
$3,497.95S&S Cycle - 310-1397A - Power Pack - Oil Cooled - 496 Gear Drive - Wrinkle Black w/o Highlight - M8FeaturesBig bore bolt-on kit increases 107" M8 to 129" with no case machining requiredS&S oil...$3,497.95 -
S&S Cycle - 310-1231D - Power Pack - Oil Cooled - 550C - Wrinkle Black w/Highlight - Chrome Pushrod Tubes - 114"/117" M8
S&S Cycle
$3,294.95S&S Cycle - 310-1231D - Power Pack - Oil Cooled - 550C - Wrinkle Black w/Highlight - Chrome Pushrod Tubes - 114"/117" M8FeaturesUpdated profile4.32" bore cylinders with 11.0:1 compression ratio...$3,294.95 -
S&S Cycle - 310-1058D - Power Pack - Oil Cooled - 550G - Wrinkle Black w/Highlight - Black Pushrod Tubes - M8
S&S Cycle
$3,497.95S&S Cycle - 310-1058D - Power Pack - Oil Cooled - 550G - Wrinkle Black w/Highlight - Black Pushrod Tubes - M8FeaturesUpdated finsNo case machining requiredForged pistonsMade in the USAIncludes oil...$3,497.95 -
S&S Cycle - 310-1236D - Power Pack - Water Cooled - 550G - Black Granite w/Highlight - Chrome Pushrod Tubes -114"/117" M8
S&S Cycle
$3,497.95S&S Cycle - 310-1236D - Power Pack - Water Cooled - 550G - Black Granite w/Highlight - Chrome Pushrod Tubes -114"/117" M8FeaturesUpdated profile4.32" bore cylinders with 11.0:1 compression ratio...$3,497.95 -
S&S Cycle - 310-1224D - Power Pack - Oil Cooled - 550G - Wrinkle Black w/Highlight - Chrome Pushrod Tubes - 107" M8
S&S Cycle
$3,497.95S&S Cycle - 310-1224D - Power Pack - Oil Cooled - 550G - Wrinkle Black w/Highlight - Chrome Pushrod Tubes - 107" M8Features4.32" bore cylinders with 11.0:1 compression ratio forged pistonsS&S oil...$3,497.95
Harley Big Bore Kits
Deadbeat Customs knows Big Bore Kits are the key to increasing displacement on your Harley. Big Bore Kits replace your stock pistons and cylinders with larger ones, leading to greater displacement. When it comes to performance there’s no replacement for displacement! We have an excellent selection of kits manufactured by S&S Cycle, which come complete with all instructions to ease the installation process. The Big Bore Kits come complete with all necessary hardware. The only decisions you’ll need to make will be choosing the right fitment and finish.