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Tom Meyer · 11-08-2015, 11:01 AM

IMCA dirt track uses a sealed 350/355hp motors in hobbystock and sportmod classes or what they call a 602 crate. They come from GM with twistoff head, intake, oil pan and timming cover bolts. They also have cable ties on other bolts that make them IMCA legal. They also use a 604 in the A mods. But like everything else it who you know there are many enhanced motors out there. Tom

11-08-2015, 11:01 AM	#3
Tom Meyer Senior Member Join Date: Aug 2003 Location: Pierce NE Posts: 936 Likes: 78 Liked 351 Times in 120 Posts	Re: Where do Sealed motors run? IMCA dirt track uses a sealed 350/355hp motors in hobbystock and sportmod classes or what they call a 602 crate. They come from GM with twistoff head, intake, oil pan and timming cover bolts. They also have cable ties on other bolts that make them IMCA legal. They also use a 604 in the A mods. But like everything else it who you know there are many enhanced motors out there. Tom __________________ Tom Meyer 5240 SS Stock ???