Big Bore and Engine
Looking for the REAL power from your 150cc engine? Upgrade to a big bore kit from BPNW!
Endrigo Racing Cylinder Head for GY6
You want this. Seriously.
Click to learn more!
$500.00
$199.95
You Save: $300.05
$199.95
You Save: $300.05
GY6 60mm Stroker Crankshaft
The 60mm stroker crankshaft for GY6 engines gives greater power and performance on every stroke!
$200.00
$170.00
You Save: $30.00
$170.00
You Save: $30.00
GY6 Big Bore Kit - 58.5mm to 63mm
Choose the Big Bore that works best for you!
Available in up to 180cc!
Available in up to 180cc!
$149.95
$99.95
You Save: $50.00
$99.95
You Save: $50.00
GY6 Camshaft A11
This A11 replacement camshaft gives a boost to low end torque!
$69.95
$49.95
You Save: $20.00
$49.95
You Save: $20.00
GY6 Stock Cylinder Head
This stock cylinder head works with all of the big bore kits we sell!
Also available as a custom ported version to match our intake riser kits for larger carburetors!
Also available as a custom ported version to match our intake riser kits for larger carburetors!
$79.95
$49.95
You Save: $30.00
$49.95
You Save: $30.00
Stock Head Gasket Set for 150cc
Stock head gasket set for GY6 150cc motors.
$19.95
$9.95
You Save: $10.00
$9.95
You Save: $10.00
Stock Piston Kit for GY6
Replacement OEM piston kit for GY6 150cc motors.
$39.95
$29.95
You Save: $10.00
$29.95
You Save: $10.00
Stock Valve Set for GY6
Replacement OEM valve set for GY6 150cc motors.
$39.95
$29.95
You Save: $10.00
$29.95
You Save: $10.00
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