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E-6 2 Valve head studs

Joey Mack

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Hello, Does anyone know the part number for the head studs, My studs bores are 5/8X11 thread, The tops are fine thread..? I was about to install my heads and when I opened the boxes of studs that i have. They were smaller, Probably 9/16".... I guess there for an END 18 hole engine.. I have a 20 hole engine.. Thanks, Jojo

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I was working for mack when the 20 stud block was changed from studs to cap screws. The best i can remember was same block was used on the first maxidyne which used cap screws plus the different liner that used the fire ring head gasket and a groove in the head.So check the cap screws out for a replacement for studs.The first ENDT 673C used studs





glenn akers

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Yes sir, I know what your saying, My customer wants it original, I may be able to convince him to use bolts... Talked to him today, w'ell see... I think e-7's had sae threads... 5/8x11.....    Thanks for youre input, Jojo

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