BIG BORE HEAD & CYLINDER KITS, GY6 – Page 2 – United Express Distribution

Free shipping on most parts

Not sure it fits? Text us a photo and we'll confirm before you buy.

Most orders ship the same day

Same-day shipping on most orders
Fitment help: text a photo to 404-532-9833
Hassle-free returns
Wholesale accounts and dealer pricing

United Express Distribution
EGR Big Bore Head & Cylinder Kit for GY6 Scooter 69mm Valves - BBK 80cc Cylinder, Piston, Rings, Wrist Pin, Circlips, Head & Base Gaskets -

Regular price $29.97

In stock

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United Express Distribution
Cylinder Head 62mm for 200cc GY6 EFI Engine - B Block

Regular price $79.97

In stock

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United Express Distribution
52.4mm Bore Cylinder Head for 4-Stroke 110cc 90cc ATV Dirt Bike Go Kart Engine

Regular price $52.97

In stock

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United Express Distribution
Rocker Arm Assembly for 200cc 63mm GY6 EFI B-Block Engine

Regular price $29.97

Low stock

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Sold out

United Express Distribution
Piston & Ring Set, 61mm, 180cc GY6 Engines

Regular price $19.77

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United Express Distribution
100cc Big Bore Kit GY6 49CC 50CC 139QMB Moped Scooter Engine 50mm Bore Upgrade Set Cylinder Only

Regular price $56.00

In stock

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United Express Distribution
Camshaft for Cylinder Head 62mm for 200cc GY6 EFI Engine - B Block

Regular price $25.97

Low stock

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United Express Distribution
BBK Bottom End ONLY- 61mm GY6 180cc Piston & Ring Set, with wrist pin and Cylinder

Regular price $45.00

Very low stock

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Same-day shipping

Most orders ship the same day
Fitment help

Text us a photo and we will confirm
30-day returns

No restocking fee on free ship orders
Wholesale accounts

Dealer pricing available