Valve seat face to top of guide:
Intake -------------------------------------------------------------------------------------------------------------- 1 15/32.
Exhaust ------------------------------------------------------------------------------------------------------------ 1 15/32.
Valve stem clearance limits:
Intake -------------------------------------------------------------------------------------------------------------- 0.0026-0.0 008.
Exhaust ------------------------------------------------------------------------------------------------------------ 0.0055-0.003 7.
Desired stem clearance:
Intake -------------------------------------------------------------------------------------------------------------- 0.0015.
Exhaust ------------------------------------------------------------------------------------------------------------ 0.0045.
e. Intake Valve.
Material -------------------------------------------------------------------------------------------------------------------- SAE 3140.
Overall length ------------------------------------------------------------------------------------------------------------- 5 3/ 16.
Stem diameter ------------------------------------------------------------------------------------------------------------ 0.3414 -0.3406.
Head diameter ------------------------------------------------------------------------------------------------------------ 1 33/6 4.
Seat angle ----------------------------------------------------------------------------------------------------------------- 30.
Clearance limits --------------------------------------------------------------------------------------------------------- 0.002 6-0.0008.
Desired stem clearance in guide ------------------------------------------------------------------------------------- 0.0015.
f. Exhaust Valve.
Material--------------------------------------------------------------------------------------------------------------------- XCR.
Type------------------------------------------------------------------------------------------------------------------------- Positive rotating.
Overall length ------------------------------------------------------------------------------------------------------------- 5 3/ 16.
Stem diameter ------------------------------------------------------------------------------------------------------------ 30.0.3 877.
Head diameter ------------------------------------------------------------------------------------------------------------ 1.208- 1.198.
Seat angle ----------------------------------------------------------------------------------------------------------------- 45.
Clearance limit ----------------------------------------------------------------------------------------------------------- 0.00 55-0.0037.
Desired stem clearance in guide ------------------------------------------------------------------------------------- 0.0045.
g. Valve Spring.
Outside diameter--------------------------------------------------------------------------------------------------------- 1.150- 1.130.
Wire size ------------------------------------------------------------------------------------------------------------------ 0.156.
Length, valve closed --------------------------------------------------------------------------------------------------- 1 21/32.
Length, valve open ----------------------------------------------------------------------------------------------------- 1 3/8.
Spring load, valve closed ---------------------------------------------------------------------------------------------- 47-53 lb.
Spring load, valve ------------------------------------------------------------------------------------------------------- 103-1 10 lb.
h. Camshaft.
Material -------------------------------------------------------------------------------------------------------------------- Drop forged steel.
First bearing journal diameter ---------------------------------------------------------------------------------------- 1.8725-1.8715.
Second bearing journal diameter ------------------------------------------------------------------------------------ 1.8096-1.8086.
Third bearing journal diameter---------------------------------------------------------------------------------------- 1.7465-1.7457.
Fourth bearing journal diameter ------------------------------------------------------------------------------------- 1.2475-12465.
Cam lift, intake ----------------------------------------------------------------------------------------------------------- 0.3 29.
Cam lift, exhaust -------------------------------------------------------------------------------------------------------- 0885.
Tappet hole diameter --------------------------------------------------------------------------------------------------- 1.0005-1.000.
Tappet diameter --------------------------------------------------------------------------------------------------------- 0.9995 -0.999.
Clearance limits --------------------------------------------------------------------------------------------------------- 0.001 5-0.005.
End play ------------------------------------------------------------------------------------------------------------------- 0.009-0.006.
i. Camshaft Bushings.
Inside diameter, first ---------------------------------------------------------------------------------------------------- 1.8755-1.8745.
second ------------------------------------------------------------------------------------------------- 1.8125-1.8115.
third ----------------------------------------------------------------------------------------------------- 1.7502-1.7495.
fourth --------------------------------------------------------------------------------------------------- 1.2605-1.2495.
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