Are Dart 225s any better than 317s for pushing water??
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Are Dart 225s any better than 317s for pushing water??
I'm at a toss up now. I'm really considering buying a set of Dart 225s for my turbo project. I have a set of stock 317s already, but I'm reading up on the Darts and it appears that the decks are not much thicker than stock castings. They are a better material though, and therfore don't have to be as thick. What do you guys think? I can get a set of Darts done for about $1500. Is it worth it?? Or should I just run the 317s and call it a day??
Thanks for any insight,
Frank
Thanks for any insight,
Frank
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I haven't been able to find that info yet. I read somewhere that someone thought they were 1/2" thick. I know the AFRs etc. are 3/4" Anyone know how thick the stockers are? I just tried to mic a set, but couldn't get my mic in the water port to check it. They do appear to be less than 1/2" though.
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Darts are good to a point but dont have the deck thickness that AFR, Trickflow, and such have. Like Chris Said. Get them O-ringed and you are golden. There are several sets of Dart heads for Bargins in the FS section.
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Thanks for the great info guys! I ended up ordering some 225's. Now I'm curious about the o-ring deal. I guess now would be the time to do it. How does it work and how much does it normally cost? They basically cut a round groove in the head and set an o-ring in it right?
Thanks,
Frank
Thanks,
Frank
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At least thats how Mike Brown did it back in the day. The heads can still warp though, keep that in mind. They're not any stronger, just seal tighter with this method.
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i came from the turbo 2.3 ford 4cyl and this has been an ongoing issue for years. Orings just band aid a problem wich is 99% of the time a bad tune. Rattle it once and u lift the head end of story. O ringing it will just help u mask the problem and the thicker heads do the same thing. I realize that cylinder pressure can be an issue but realistically at what point? Anyone have and data?