BIG BORE

BUGGY PERFORMANCE
150cc 
  • TrailMaster
  • Kandi
  • BMS
  • Roketa
  • Joyner
  • SunL
  • Dazon
  • Hammerhead
  • Twister
  • Blade
  • Carter
  • Baja
  • Tomberlin
GY6 150 Buggy Engine
BIG BORE KITS
  • 57.4mm  149ccStock
  • 58.5mm  155cc  
  • 61mm   170cc  
  • 63mm  180cc  

check your engine, the stamp on your cylinder block may include these numbers: 

         QMI152, QMI157, QMJ152, QMJ157 

NOTE: the 52 and 57 correspond to the bore size. 52mm for 125cc and 57mm for 150cc
Displaying products 1 - 16 of 20 results
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GY6 150 Performance Camshaft (A9), for Buggy or Gokart
Part No: PFS169-268
HOLIDAY SALE PRICE: $49.99
Hoca High Angle A9 Performance Camshaft for 150cc and 125cc GY6 4-stroke engines.
View GY6 150 Performance Camshaft (A9), for Buggy or Gokart
GY6 150 High Speed Camshaft (A8), for Buggy or Gokart
Part No: PFS169-267
HOLIDAY SALE PRICE: $49.99
Hoca High Angle A8 Performance Camshaft for 150cc and 125cc GY6 4-stroke engines.
View GY6 150 High Speed Camshaft (A8), for Buggy or Gokart
GY6 150 Performance Camshaft (A11), for Buggy or Gokart
Part No: PFS169-270
HOLIDAY SALE PRICE: $49.99
(Torque) Hoca High Angle A11 Performance Camshaft for 150cc and 125cc GY6 4-stroke engines.
View GY6 150 Performance Camshaft (A11), for Buggy or Gokart
GY6 150 Performance Camshaft (A10), for Buggy or Gokart
Part No: PFS169-269
HOLIDAY SALE PRICE: $49.99
Hoca High Angle A10 Performance Camshaft for 150cc and 125cc GY6 4-stroke engines.
View GY6 150 Performance Camshaft (A10), for Buggy or Gokart
GY6 150 Performance Camshaft (A13), for Buggy or Gokart
Part No: PFS169-461
HOLIDAY SALE PRICE: $49.99
(High Torque) Hoca High Angle A13 Performance Camshaft for 150cc and 125cc GY6 4-stroke engines.
View GY6 150 Performance Camshaft (A13), for Buggy or Gokart
GY6 150 High Torque Camshaft (A14), for Buggy or Gokart
Part No: PFS169-462
HOLIDAY SALE PRICE: $49.99
(Highest Torque) Hoca High Angle A14 Performance Camshaft for 150cc and 125cc GY6 4-stroke engines.
View GY6 150 High Torque Camshaft (A14), for Buggy or Gokart
GY6 170cc Big Bore Cylinder Kit
Part No:
List Price: $219.00
HOLIDAY SALE PRICE: $188.00
You Save: $31.00 (14 %)
Naraku 58.5mm Big Bore Cylinder Kit bumps GY6 150 to 170cc. The stock 150cc cylinder is 57.4mm. Easy to install! Just bolt on with no crankcase modifications needed.
View GY6 170cc Big Bore Cylinder Kit
150cc GY6 Replacement Engine, Long-Case
Part No: PS220-42
List Price: $849.00
HOLIDAY SALE PRICE: $428.99
You Save: $420.01 (49 %)
LONG CASE 150 GY6 Replacement Engine, with automatic CVT transmission included. for Kymco, Avanti, Kazuma, Diamo, SunL, CFMoto and many more
View 150cc GY6 Replacement Engine, Long-Case
150cc GY6 Replacement Engine, Short-Case
Part No: PS220-46
List Price: $799.00
HOLIDAY SALE PRICE: $495.00
You Save: $304.00 (38 %)
SHORT CASE 150 GY6 Replacement Engine, with automatic CVT transmission included
View 150cc GY6 Replacement Engine, Short-Case
180cc (63mm) Big Bore Cylinder Kit, for GY6150 engine
Part No:
List Price: $249.00
HOLIDAY SALE PRICE: $234.95
You Save: $14.05 (6 %)
63mm 180.5cc Big Bore Cylinder Kit for the GY6 125/150 engine. Upgrade your engine to 180cc. Includes: Cylinder, Piston, Rings, Wrist pin, Clips, Gaskets
View 180cc (63mm) Big Bore Cylinder Kit, for GY6150 engine
Gasket Set, GY6 170cc (61MM)
Part No:
List Price: $12.95
HOLIDAY SALE PRICE: $10.95
You Save: $2.00 (15 %)
Gasket Set for GY6 170cc (61MM) Big Bore Kit. Cylinder Head and Cylinder Base Gasket Set for the 61mm Big Bore Cylinder Kit. the stock GY6150 cylinder bore size is 57.4mm
View Gasket Set, GY6 170cc (61MM)
GY6 61mm Big Bore Cylinder Kit
Part No:
List Price: $235.00
HOLIDAY SALE PRICE: $184.95
You Save: $50.05 (21 %)
Hoca 61mm Big Bore Cylinder Kit for 150cc and 125cc GY6 4-stroke engines and engine. Upgrades to 168.9cc (based on stock stroke of 57.8mm) Bore: 61mm Overall Height (cylinder): 93mm
View GY6 61mm Big Bore Cylinder Kit
GY6 150 Engine Oil Cooler Kit
Part No: PFS169-11
List Price: $279.95
HOLIDAY SALE PRICE: $209.95
You Save: $70.00 (25 %)
NCY After-Market Performance GY6 125/150cc Oil Cooler kit. Designed to provide oil cooling and lubrication to protect the cylinder kit during high speeds!
View GY6 150 Engine Oil Cooler Kit
GY6 Oil Cooler Kit for 180cc Kit
Part No: PS169-488
List Price: $359.95
HOLIDAY SALE PRICE: $319.95
You Save: $40.00 (11 %)
SSP-G Oil Cooler Kit for the 180cc Power Kit or any GY6 that uses an 80.5mm cylinder stud spacing such as Taida B-Block cases or the Polaris RZR 170.This kit comes with pre-drilled and tapped right side engine cases.
View GY6 Oil Cooler Kit for 180cc Kit
180cc Power Upgrade Kit, for GY6150 engine
Part No:
List Price: $449.00
HOLIDAY SALE PRICE: $397.00
You Save: $52.00 (12 %)
180cc Upgrade. This complete Power Pack comes with a 63mm bored out Cylinder and matching Machined out Crankcase with all of the oil seals installed. This means there is no machining required unlike all other kits on the market.
View 180cc Power Upgrade Kit, for GY6150 engine
180cc Power Upgrade Kit with Oil Cooler, for GY6150 engine
Part No:
List Price: $599.95
HOLIDAY SALE PRICE: $549.99
You Save: $49.96 (8 %)
180cc Upgrade with oil cooler. This complete Power Pack comes with a 63mm bored out Cylinder and matching Machined out Crankcase with all of the oil seals installed. This means there is no machining required unlike all other kits on the market.
View 180cc Power Upgrade Kit with Oil Cooler, for GY6150 engine
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