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ChadS
01-24-2006 12:53:07
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Re: Fire Crater pistons in M in reply to randy hall, 01-24-2006 09:53:18
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I just went thru this,,, Had a M, put in a set of firecrater design pistons, (made for the late model heads) came from a late model tractor, used a 8060 head, and SLAP!! The pistons hit the head. Thats why the late model engines had the slant along the manifold side of the chamber, to make room for the new piston design. These were IH pistons, firecrater style pistons, in a M block with a 8060 head. I can show you a picture of them, the ones used inthe M, are totally different than the pistons used inthe 450. For one, the domes on the 450 pistons are spread out more over the top of the pistons,, onthe M design, they were a bigger dome, BUT, not spread out over the top of the piston. Which fit in the M heads,,, but not considered firecrater piston design. They were considered stepped head pistons. Big difference in the 2. SM-450 firecraters will not fit inside the M kerosine-gas heads, the M styles were stepped heads, even though they had a simular shape inthe dome, was much taller, and the dome is in one area of the pistons. Try this,, and its the exact same thing onthe SM,, put a H head on a Super H with firecraters,, Ill betcha a steak dinner, they will hit. Try the same with a SM with firecraters,, put on a M head, it will hit. Chad
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