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Souped up MTA

J

Jerry Elam

New User
On RFD tv a guy on a tractor ride said he had "souped up" his MTA by putting a 400 engine on it. As an old gear head could he have got the same horse power increase with just a good rebuild & kept the original engine? That is assuming the original engine was not un- salvageable. busted block or something?
Jerry
 

With the proper "over-bore" rebuild kit, that MTA engine would be an equal to the 400 engine, and with attention to detail and just a wee bit of tweaking, it would out-perform a "stock" 400.
 
The SM and 400 are the same engine C264. The 450 would be the step up in overbore. By him putting in a 400 engine he pretty much gained no horsepower to speak of and ruined a good SMTA.


Andrew
 
That was what I though. hope he didn't ruin a 400 too. To be fair, I'll give him the benifet & say the engine may have bee beyoub repair. I unfortunatly don't belive any tractor can't be fixed. I found an add for an A with a stuck engine+ two parts tractors. My wife said"So you get 3 tractors that don't run!"
Jerry
 
They can be made for same power. In original stock gasoline form the 400 used a cylinder head with different combustion chamber that was smaller than a SMTA head, Different camshaft and later ones used a smaller piston pin and seem to have less vibration than earlier engines.
Most SM and 400 engines found now were rebuilt to 281 cubic inch size sometime in the past.
 
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