Cylinder Head Specifications

CYLINDER HEAD SPECIFICATIONS

Application

In. (mm)

2.3L

Valve Seats

Maximum Cylinder Head Warp - Intake ⁽¹⁾

⁽²⁾

Maximum Cylinder Head Warp - Exhaust

⁽²⁾

Seat Angle

45°

Maximum Runout

n/a

Seat Width

Intake

.051-.075 (1.29-1.91)

Exhaust

.066-.091 (1.68-2.31)

Seat Bore Diameter

Intake

1.8110 (45.999)

Exhaust

1.4960 (37.998)

Valve Guides

Valve Stem Oil Clearance ⁽³⁾ .

.0012-.0024 (.030-.061)

Valve Guide Inside Diameter ⁽⁴⁾

.3150-.3158 (8.001-8.021)

Valve Guide Bore

n/a

⁽¹⁾	Minimum cylinder head height is 5.732" (145.59mm).

⁽²⁾	Warpage should not exceed .04" (1.0mm) lengthwise or 02" (.5mm) crosswise.

⁽³⁾	Maximum oil clearance is .006" (.15mm).

⁽⁴⁾	Valve guide installed height for intake valves is 606- .614" (15.39-15.59mm) and .705-.713" 17.90-18.11mm) for exhaust valves.