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: 10mm
•    Fit Exhaust Studs: M6 / Nuts: M6 / Socket: 10mm
•    Fit Rocker Arm Assembly: 64mm / Feeler Gauge: .004in / .005in / Socket: 9mm
•    Fit Cylinder Studs: 168mm 176mm / Nuts: M7 / Washers: M7 / Side Bolts: M6 / Socket: 8mm-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: 139QMB 49cc-50cc engines, Baja SC50, Boreem (BMS) 50, Filly 50, Kymco 50, Panterra 50, Qingqi 50, QLink 50, Roketa 50, SUNL 50, SYM 50, Tank 50, TaoTao 50, and virtually any other scooter engine with these measurements.

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