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Complete overhaul Nailhead 401>407


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Dear Fellas!

 

Killed my engine last year summer, cuz of low oil content, but the engine has lot of marks and pittings on crank i see, when i opened the crank main bearings to look about the condition of them, so i wasn`t surprised, that it happened, but crank looks terrible after that, no more bearing existing, they melted away... 🙄

 

Then it takes more then a half year to get the camshaft... 🤮

 

I think he used Sealed Power pistons in .030 over, new water pump, new bearings everywhere, crank gets grinded, new oil pump, MSD ignition, new stainless valves, remanufactured rockers and a special cam called "His secret", its rounded up with a 650 Holley, he can better tune then a Edelbrock he said and finally get a tune on a hub dyno...

 

Enjoy the machine porn here... 😁

 

Regards,

Ron

 

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It was original a 364 in there previous owner swapped to a 62-64 401, unsure what he did on the valvetrain, is their any difference in measurement, thought all 364=401=425 have the same head?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Same cyl head for 364 to 455?  My gut suspicion is that they are NOT the same.  Reason?  Cyl bore diameters and valve sizes.  The 401 uses 1.8" intake valves and 1.5" exhaust valves.  If the 455 cyl bore diameter is larger than the 401, then I suspect the 455s would have larger valves as a part of the mix.

 

Just a thought,

NTX5467

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