Offshoreonly.com - Promaxx 320 flow numbers

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Quote:

Originally Posted by Rookie (Post 4519130)

I don't think you need to be worried about the quality of the castings. Jim and I spent a good half hour talking things over with Jason at ProMaxx at PRI. Jim fondled them for a bit also, he thought they looked pretty good for the $$$. There is a marine builder that has been using them for a couple of years with no issues. From their published flow #'s there might not be much work to do to them, but you never know. I stopped by after work today and I see he has a lot of new heads there to compare out of the box #'s to. New World Merlin, EQ320's, Dart 345's, Brodix SR-20's (F'n Huge!), some new Wieand tunnel rams and an Edelbrock single for the SR-20's. I'll stop by over the weekend and hopefully take a peak at your heads.

Rookie they showed up at Jims house rather than shop but he did a quick inspection and he said the runner looked a bit biggger then advertised. Regardless you'll probably see them before I so just keep me posted.

How come this thread doesn't have 5 more pages each time I look?

Are these the cast or aluminum heads

Quote:

Originally Posted by Unlimited jd (Post 4519216)

How come this thread doesn't have 5 more pages each time I look?

Let me fix that for ya....:

Call Bob Madera.

Ok, that should do it. :party-smiley-004:

Quote:

Originally Posted by 33outlawsst (Post 4519224)

Are these the cast or aluminum heads

The promaxx are aluminum.

Quote:

Originally Posted by 33outlawsst (Post 4519224)

Are these the cast or aluminum heads

both,,cast aluminum.:D

Quote:

Originally Posted by Unlimited jd (Post 4519216)

How come this thread doesn't have 5 more pages each time I look?

too many reasons to list,,but if we did,,it'd hit 5 pages quickly.:D

call Bob Madera marine kinetics do the phone date for like forever / does not want any money , also no parts , the important part / just where ole bob when we need him ??

Jim said casting looked great. He did a quick flow out of the box with a 2.25 intake and was 382. Exhaust was 250. Both were flowed at .700.

Forgot to mention the exhaust was all done @ .600 but that's going to change drastically.