SSP-G Cylinder Head 61mm 171cc 2V 27.75/23 Fit 54mm (GY6)

Description: SSP-G Cylinder Head Wear-Resisting 2 valves with a larger 27.75 intake / 23 exhaust ports will allow your GY6 cylinder to breathe better! Works great with Naraku Cylinder 63mm 180cc Big Bore Kit w/Forged Piston. When changing a cylinder kit or an exhaust, t's a clever idea to pick up a few extra 8mm Studs + Nuts, since these can easily need replacing and bring your project to a grinding halt while you wait. These 6mm nuts are also kool-looking add-ons (sold separately).

Specifications:

Includes the following Cylinder Head and installed Valves Assembly.

•    1x Cylinder Head Stud Space: 54mm / H: mm / Intake Port: 27.5mm / Exhaust Port: 26.5mm
•    2x Valves: 27.75mm Intake / 23mm Exhaust / Stem: 5mm / (w/intake valves) H: mm
•    Intake Manifold Bolt-to-Bolt Space: 45mm
•    Intake Threads: M6
•    Exhaust Bolt-to-Bolt Space: 45<51mm
•    Exhaust Threads: M8
•    Made in Taiwan
•    Fit Intake Studs: M6 / Nuts: M6 / Socket: 10mm
•    Fit Exhaust Studs: M8 / Nuts: M8 / Socket: 12mm
•    Fit Cylinder Studs: 187mm 195mm / Nuts: M8 / Washers: M8 / Side Bolts: M6 / Socket: 8mm-12mm
•    Fit Flywheel/Variator/Clutch Shaft Nuts: M12 / Washers: M12 / Socket: 17mm
•    Fit 54mm Stud Spacing (A-Block)
•    Fit 54mm Rocker Arm 2V Assembly
•    Fit Crankshaft 57.8mm +3mm
•    Fit Dowel Pin Set (10x14mm)
•    Fit Cam Chain 45 (90) links
•    Fit Chain Guide (standard)
•    Fit 54mm Cylinder 58.5mm to 63mm 2V
•    Fit GY6 125/150cc+
•    Optional: cut plastic fan shroud for best fitment

Supported Models: GY6 Crankcase (Part# 1100-1418); GY6 152QMI 157QMJ Chinese Scooter, ATV, Genuine Buddy, Kymco, Ruckus, Vento

-----
Item Weight & Package Dimensions:
•    2.4375 Pounds | 7.5" (L) x 6.875" (W) x 3" (H)