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Hey guys i have a 05 AC sno pro 440 and i want to convert to pump fule i have read that f7 and f6 motors fit in but i dont want to do that much work if i ont have to so far winter here in upstate ny sucks so i have lots of time to get this done im looking for a blown f6 or f7 casue i have a f8 kit to put in one i wanted to put the fy cylenders on the 440 but i hear it wont work if anyone has any info on this the help would be awesome
 

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if you want to run pump fuel alone on the 440, bring your heads to your local machine shop. tell them you want to run 150psi and maintain a minimum squish of 0.062 inches.
 

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Get a trail package for it with lower compression heads! The only thing that will be tough to find is a bigger gas tank! You will still need to premix the gas unless you put an oil injection system on it!
 
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