Promaxx 320 flow numbers

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01-12-2017, 10:27 PM

#11

getrdunn

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Quote:

Originally Posted by Rookie

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.

01-13-2017, 06:26 AM

#12

Unlimited jd

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

01-13-2017, 07:06 AM

#13

F-2 Speedy

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Are these the cast or aluminum heads

01-13-2017, 07:13 AM

#14

vintage chromoly

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Quote:

Originally Posted by Unlimited jd

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.

01-13-2017, 07:56 AM

#15

MILD THUNDER

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Quote:

Originally Posted by 33outlawsst

Are these the cast or aluminum heads

The promaxx are aluminum.

01-13-2017, 08:10 AM

#16

sutphen 30

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Quote:

Originally Posted by 33outlawsst

Are these the cast or aluminum heads

both,,cast aluminum.

01-13-2017, 08:11 AM

#17

sutphen 30

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Quote:

Originally Posted by Unlimited jd

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.

01-13-2017, 12:27 PM

#18

hotrodford

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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 ??