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

Description: Taida Cylinder Head 52mm 64mm with big 2-Valve racing' 21.5mm intake / 19mm exhaust. This cylinder head fits the Taida cylinder kit [50mm-52mm] for 139QMB 81-88cc engines (scooters, quads, and buggies) To increase performance we suggest a performance camshaft.

NOTE: Most stock 139QMB cylinder head's valve height is 69mm which comes standard with its 69mm rockerarm. This Taida 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# 151-101 sold separately.

Specifications:

Includes the following Cylinder Head, Valves Assembly, Gaskets (manifold spacer +gasket, steel exhaust gasket), intake\exhaust studs, nuts, and Taida Sticker.

•    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
•    1x Plastic Intake Manifold Spacer L: 58mm / ID: 21mm / W: 38mm / H: 5.15mm
•    1x Paper Intake Manifold Gasket L: 58mm / ID: 21mm / W: 38mm / H: 1mm
•    Intake Manifold Gasket Bolt-to-Bolt Space: 45mm
•    2x Intake Studs: M6x62mm
•    1x Exhaust Gasket L: 68mm / ID: 27mm / W: 45.15mm / H: 1.9mm
•    Exhaust Gasket Bolt-to-Bolt Space: 45<51mm
•    2x Exhaust Studs: M6x35mm
•    Made in Taiwan
•    Fit Intake Studs: M6 / Nuts: M6 / Socket: 8mm
•    Fit Exhaust Studs: M6 / Nuts: M6 / Socket: 8mm
•    Fit Rocker Arm Assembly: 64mm / Feeler Gauge: .004in / .005in / Socket: 9mm
•    Fit Cylinder Studs: 168mm 176mm / Nuts: M7 / Washers: M7 / Socket: 10mm
•    Fit 50mm Stud Spacing /Diagonal 70.5mm
•    Fit Cylinder 50mm to 52mm 2V
•    Fit Crankshaft 41.4mm to 44mm
•    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)