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Fox Gear Sale, ends soon 0 Days : 00 Hours : 00 Minutes : 00 Seconds Shop Now

Dirt Bike Big Bore Kits

1-1356-226
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35 Results

$40 Fast cash

Athena
Big Bore Kit
$527.36 - $1348.16
Sale
Up to 10%
4 out of 5 stars (16) reviews
$46 Fast cash

Cylinder Works
Big Bore Kit
$499.91 - $1532.30
Sale
Up to 5%
4.5 out of 5 stars (27) reviews
New
$33 Fast cash

Cylinder Works
Standard Bore Cylinder Kit
$429.21 - $1005.51
Sale
Up to 15%
4 out of 5 stars (12) reviews
New
$30 Fast cash

Cylinder Works
Cylinder
$337.20 - $639.30
Sale
Up to 5%
4.5 out of 5 stars (28) reviews
New
$4 Fast cash

Athena
Big Bore Gaskets
$21.99 - $120.99
Sale
Up to 10%
4 out of 5 stars (6) reviews
$14 Fast cash

VHM
Billet Cylinder Head With Insert
$281.99 - $379.99
Sale
Up to 10%
$34 Fast cash

Cylinder Works
Standard Bore High Compression Cylinder Kit
$435.96 - $1150.86
Sale
Up to 15%
5 out of 5 stars (4) reviews
$32 Fast cash

Cylinder Works
Top End Kit With Cylinder - 2-Stroke
$675.93 - $758.94
Sale
Up to 19%
5 out of 5 stars (1) review
$35 Fast cash

Cylinder Works
Big Bore Cylinder
$356.36 - $1178.96
Sale
Up to 5%
$24 Fast cash

Cylinder Works
Top End Kit With Cylinder - 4-Stroke
$474.66 - $948.00
Sale
Up to 7%
5 out of 5 stars (7) reviews
$25 Fast cash

Athena
Factory Cylinder Kit
$733.46 - $838.76
Sale
Up to 10%
4 out of 5 stars (13) reviews
$29 Fast cash

Athena
Big Bore Stroker Kit
$962.96
Sale
Save 10%
3 out of 5 stars (2) reviews
New
$24 Fast cash

Athena
Stock Cylinder Kit
$314.06 - $596.66
Sale
Up to 10%
$9 Fast cash
Colors for VHM Billet Cylinder Head

VHM
Billet Cylinder Head
$229.99 - $319.99
$34 Fast cash

KTM PowerParts
300 Factory Kit
$1143.99 - $1362.99
$10 Fast cash

BBR
Big Bore Kit
$359.95
5 out of 5 stars (1) review
New
$32 Fast cash

Athena
Big Bore Kit With GET Boost
$1049.95
Sale
Save 10%
$2 Fast cash

VHM
Cylinder Head Insert
$56.99 - $64.99
New

Kibblewhite
Cylinder Stud Kit
$97.66 - $146.06
$16 Fast cash

Cylinder Works
Cylinder Head Kit
$138.65 - $600.06
Sale
Up to 15%
5 out of 5 stars (4) reviews
$12 Fast cash

Wiseco
12.5:1 Big Bore Kit
$394.97
Sale
Save 10%
$10 Fast cash

BBR
Big Bore Cylinder
$209.95

Moose
Replacement Cylinder
$366.95 - $506.95
$31 Fast cash

KTM PowerParts
150 Factory Kit
$1209.99
$5 Fast cash

Pro Circuit
Cylinder Head Cover
$169.95
$2 Fast cash

Husqvarna Technical Accessories
Engine Brace Set
$86.99
$63 Fast cash

GYTR
Ported Cylinder Head Assembly
$1999.99 - $2099.99
5 out of 5 stars (2) reviews
$1 Fast cash

Husqvarna Technical Accessories
Factory Cylinder Head Combustion Chamber Insert
$37.77 - $120.99
Clearance
Up to 30%
$5 Fast cash

Cylinder Works
Big Bore Gasket Set
$29.99 - $163.35
Sale
Up to 5%
5 out of 5 stars (4) reviews
$34 Fast cash

GasGas Technical Accessories
300 Factory Kit
$1143.99 - $1362.99
$4 Fast cash

Nihilo
Interchangeable Head Dome
$130.99
$2 Fast cash

KTM PowerParts
Engine Brace Set
$86.99
$2 Fast cash

Athena
Factory Cylinder Kit Gaskets
$44.96 - $64.99
Sale
Up to 10%
3.5 out of 5 stars (3) reviews

Pro Circuit
Front Engine Brackets
$51.95
$2 Fast cash

GasGas Technical Accessories
Engine Brace Set
$86.99

Big Bore Kits for Dirt Bikes

Install a big bore kit for optimum power in your dirt bike to tackle the roughest terrain, gnarliest hills and get an edge on the competition. Find a wide range of dirt bike big bore kits at MotoSport that fit many makes, models and years. When deciding on a big bore kit for your ride, use the Fitment Expert on the product page to ensure the right big bore kit for your dirt bike. Most big bore kits include a cylinder, piston, ring(s), pin, clips and top-end big bore gasket kit. If you want help finding the right big bore for your dirt bike please call 503-783-5645 to talk to a gearhead who can answer questions and point you in the right direction so you can make an informed buying purchase.

MotoSport delivers all big bore kits fast and orders more than SHIPPING_THRESHOLD ship free!.