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08-06-2020, 06:31 PM | #1 |
Junior Member
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8rt head milling
Hey guys, I have a 51 8ba with a 4” crank, bored .060 over, and 8rt heads. I bought the heads at the same time but don’t know the history of them. I have 130-140 lbs of pressure in cylinders 1-4 and 110-120 lbs in cylinders 5-7. I did the tin foil balls thing in the cylinders on the 5-8 side and it seems to have .025 piston clearance with the head tightened down with no gasket. I’m thinking if I mill .020 off the head and use a copper gasket I should be around the .050 you guys talk about. Do you think that will get the right side to match the left side.
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Wmurphy 51 pickup Last edited by Wmurphy@whmcontractin; 08-07-2020 at 06:52 AM. |
08-07-2020, 08:44 AM | #2 |
Senior Member
Join Date: May 2010
Location: Chester Vt
Posts: 8,860
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Re: 8rt head milling
Find a set of EAB heads and mill them for .045 clearance. I have a set of them on my 280 engine and get 160lbs with EAB cam as well. Engine torque is unbelievable.
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08-07-2020, 10:13 AM | #3 |
Junior Member
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Re: 8rt head milling
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