Nason Cylinder head - assembled - 909302-A

Specifications
Combustion Chamber Volume:	61cc
Intake Port Volume:	185cc
Intake Port Size H x W:	2.020" x 1.126"
Exhaust Port Volume:	65cc
Exhaust Port Size H x W:	1.362" x 1.354"
Spark Plug Style:	Angle
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:	1.700"
Valve Spring Pressure @ 1.800":	105lbs
Valve Spring Pressure @ 1.225":	300lbs
Valve Spring Maximum Lift:	0.550"
Valve Lock Type:	7 Degree
Valve Stem Seal Material:	Viton
Rocker Stud Size:	7/16"
Guide Plate Pushrod Size:	5/16"
Intake Gasket - Felpro:	1262
Exhaust Gasket - Felpro:	1486

Description

Assembled Head - Alloy Performance Head

Includes :

Cylinder Head

Valves Inlet

Valves Exhaust

Valve Springs

Valve Spring Retainers

Valve Spring Seats

Valve Collets

Valve Stem Seals

Screw In Studs

Guide Plates

Cylinder Head Specifications

Flow CFM @ H28

Intake

@.200" = 114

@.300" = 167

@.400" = 218

@.500" = 236

@.600" = 251

Exhaust

@.200" = 102

@.300" = 143

@.400" = 152

@.500" = 152

@.600" = 152