Model B engine .125 over , what cubic inch ?

4t6ford

4t6ford

Junior Member
Need the math wizards input , .125 oversize bore on a B engine . What does that make the cubic inch capacity now ?
 
Lessee if I can remember. The 13 (Skip the point so and so stuff, slight humidity changes will cancel them out) represents 6/6.5 % of the total engine size. So that means you increased the HP by 2 hp. With a "Head" on her (CR 5.2) You'll probably see around 55+ Hp.
Terry
 
.125" = a bore of 4" and is very safe. I race an early B at 4", with a turbo, with no problems. Some racers in the old days ran 4.060, but you have to offset the bores as the area between cylinders gets too thin. I've run 4" on the street too, no heating or other problems.
 
It's not! The T has no oil pump, water bump, fuel pump, etc., etc. The crankshaft is made of 3/4" water pipe. The reason they run at all is they also have no power! I say this knowing a friend of mine has built his T engine that has propelled a streamliner to over 200 MPH!!!
 
Jim Brierley said:
It's not! The T has no oil pump, water bump, fuel pump, etc., etc. The crankshaft is made of 3/4" water pipe. The reason they run at all is they also have no power! I say this knowing a friend of mine has built his T engine that has propelled a streamliner to over 200 MPH!!!
Click to expand...

I wonder how much of that "Model T" engine is actual Model T! I'd guess nothing but the block.
 
Yep, just the block, and it has had lot of work in the ports and valves area. Crank has 5 mains and is supported by a hand made girdle. It also has a turbo running 15 lbs., or so, of boost, running on straight alcohol.
 
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