NCY Cylinder Head 52mm 88cc 2V 21.5/19 (139QMB)

Description: NCY 52mm 88cc Aluminum Performance Cylinder Head with 2-Valves' 21.5mm intake / 19mm exhaust. Great quality alloy cylinder head designed to work seamlessly with 1100-1248 88cc cylinder kit. Give your 139QMB the power to actually get some respect.

NOTE: Most stock 139QMB cylinder head's valve height is 69mm which comes standard with its 69mm rockerarm. This NCY Cylinder Head's valve height is 64mm and will work only with a 64mm rockerarm only. If you need a set of 64mm rockerarm see Part# 1100-1326 sold separately.

Specifications:

Includes the following Cylinder Head and Valves Assembly.

•    1x Cylinder Head Stud Space: 50mm / H: 60mm / Intake Port: 24mm / Exhaust Port: 22mm
•    2x Valves: 21.5x64mm Intake / 19x64mm Exhaust / Stem: 5mm / (w/intake valves) H: 66.1<67.3mm
•    6mm Intake Threads 
•    6mm Exhaust Threads
•    Made in Taiwan
•    Fit 6mm Intake Studs
•    Fit 6mm Exhaust Studs
•    Fit 64mm Rocker Arm Assembly 2V
•    Fit 50mm Stud Spacing /Diagonal 70.5mm
•    Fit Cylinder 52mm 2V
•    Fit Dowel Pin Set (8x14mm)
•    Fit QMB 49/50cc+

Supported Models: GY6 139QMB 49cc-50cc 4-Stroke engines, Filly 50, Kymco 50, QLink 50, SYM 50, TaoTao 50

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Item Weight & Product Dimensions:
•    2.194 Pounds | 5.322" (L) x 5.290" (W) x 2.610" (H)