Nason Cylinder head - assembled - 909350-A

Specifications
Combustion Chamber Volume:	64cc
Intake Port Volume:	195cc
Intake Port Size H x W:	2.090" x 1.161"
Exhaust Port Volume:	74cc
Exhaust Port Size H x W:	1.401" x 1.421"
Spark Plug Style:	Straight
Spark Plug Type:	14mm x 1.25mm x 19mm
Valve Angle:	23 Degree
Valve Diameter - Inlet:	2.020"
Valve Diameter - Exhaust:	1.600"
Valve Material:	Stainless Steel
Valve Spring Diameter:	1.437"
Valve Spring Installed Height:	1.800"
Valve Spring Pressure @ 1.800":	105lbs
Valve Spring Pressure @ 1.225":	300lbs
Valve Spring Maximum Lift:	0.575"
Valve Lock Type:	7 Degree
Valve Stem Seal Material:	Viton
Rocker Stud Size:	7/16"
Guide Plate Pushrod Size:	5/16"
Intake Gasket - Felpro:	1205
Exhaust Gasket - Felpro:	1404

Description

Assembled Head - Alloy Performance - Straight Plug, 64cc Chamber

Includes :

Cylinder Head

Valves Inlet

Valve Springs

Valve Spring Retainers

Valve Spring Seats

Valve Collets

Valve Stem Seals

Screw In Studs

Guide Plates

Cylinder Head Specifications

Flow Data @ 28"(CFM) With 2.020" & 1.600" Valves

Intake

@.200" = 120

@.300" = 184

@.400" = 214

@.500" = 232

@.600" = 239

Exhaust

@.200" = 60

@.300" = 120

@.400" = 141

@.500" = 155

@.600" = 164