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Pete · 04-01-2014, 05:54 PM

Camshafts are designed to be run with a certain lifter clearance.
This is built in and non negotiable. If you want the engine to perform as it was designed to do, don't change it.
If you paid to have your engine built, then setting the valve clearance is on the builder. If you choose to change it, the warranty is void.
Changing the clearance on some cams can change the timing as much as 5 degrees.
This will usually show up in the gas mileage and it does NOT get better.

If you install an after market cam, use the settings that come with the cam, NOT what old Uncle Joe thinks he set them at 60 years ago or what you think might work better.

"Been in the cam business 60 years"

04-01-2014, 05:54 PM	#10
Pete Senior Member Join Date: May 2010 Location: Wa. Posts: 5,417	Re: Model B valves Camshafts are designed to be run with a certain lifter clearance. This is built in and non negotiable. If you want the engine to perform as it was designed to do, don't change it. If you paid to have your engine built, then setting the valve clearance is on the builder. If you choose to change it, the warranty is void. Changing the clearance on some cams can change the timing as much as 5 degrees. This will usually show up in the gas mileage and it does NOT get better. If you install an after market cam, use the settings that come with the cam, NOT what old Uncle Joe thinks he set them at 60 years ago or what you think might work better. "Been in the cam business 60 years"