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Questions: Do I have to grind these valves or lap the seats before installing them
Question By: Sahil on Oct 7 2018 8:06 AM
Typically lap the valve seats
Answer By: Willys Jeep Parts Tech on Oct 8 2018 9:08 AM
Questions: I just bought the L head engine rebuild kit and the valves don't have the same number on the package that the invoice. I have 4 with 781 on the package and the other has 782. Which is exhaust and which is intake?
Question By: Kyle thomas on Apr 10 2018 11:26 PM
The 637182 is 1.525" at the diameter of the seat and the 637183 1.465" at the diameter of the seat.
Answer By: Willys Jeep Parts Tech on Apr 11 2018 11:06 AM
Questions: What parts besides the valve and the valve seat insert do i need to change to run on 87 octane unleaded fuel?
Question By: Rob on Apr 22 2012 12:00 AM
You also should change out the exhaust valve seat insert too.
Answer By: Willys Tech on Apr 23 2012 12:00 AM
Questions: I have a Hobart Welder with the L-head engine with a BHP rating of 29 @ 1500 RPM. Ser # 563024. Are the intake valves the same?
Question By: Anonymous on Sep 19 2011 12:00 AM
Yes it should work just fine.
Answer By: Willys Tech on Sep 19 2011 12:00 AM
Questions: Are these replacements harder than the originals? I am wondering if I could run unleaded fuel with these and your hardened valve seat inserts?
Question By: Kevin on Mar 10 2011 12:00 AM
Yes, they are set up for the unleaded fuel.
Answer By: Willys Tech on Mar 10 2011 12:00 AM
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