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400-450 Head

Yesterday's Tractor Forums
T

Tinks

Member
Going to look at a 400 gas engine. On the cylinder head how many different casting numbers are there? And which make the best for pulling? Also is there any difference between 400 and 450 head or block? Thanks for any help.
 
You can tell a C-281 (late 400 thru 450) gas head by the breather hole in the back of the head. It won't have it. All the other gas heads do.
 
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