Blown Flathead V8 Part III
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Uploader Comments (blownflathead)
All Comments (10)
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this is a good motor for my roadster
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My first car, a 1953 Ford, had a 239.4 flathead V8. The problem I had was while driving wide open, 86 mph. I lost oil pressure and then the center main spun, broke the bolts and cap and then the bent crankshaft started hitting the block. To it's credit, I drove the poor thing for three weeks with no oil pressure until I could find a replacement engine. This was in 1966. How do you keep the crank bearings in this engine?
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love the way that sounds. flatheads sound great and so do superchargers.
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That does sound great. Long live the flatheaders.
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I*d be interested to know what type of intake manifold you used?Did you make a girdle for the main caps?full or centre only.Cheers ,Flathead Mike Australia
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In a class all their own huh? Love it.
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Flatheads are cool.
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That's a fantastic bit of kit! Great engineering!
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The center main is a weak point but not as wimpy as some think. Drag racing loads only last for a few seconds which makes the job easier. I use a mild steel center maincap, ARP retaining bolts, Clevite 77 bearings and Valvoline VR-1 20W-50 racing oil. It all seems to work. The redline is 5800 rpm.
blownflathead 1 year ago
The engine uses a Roadrunner Engineering "Big Kahuna" supercharger kit with a Roadrunner manifold and a Weiand 174 blower.
The engine has a heavy duty steel center maincap.
blownflathead 3 years ago