What heads would you use?

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01-07-2008 | 08:58 PM

#21

R Addiction

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From: Pa.

Calling him tomorrow....

01-07-2008 | 09:10 PM

#22

Noise Pollution

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From: Upper Chesapeake Bay

I bought a set of the Dart Iron Eagles. Disapointed in the quality. Sharp edges in the bowl area leading onto the ports. Flow might be better than stock, but still not that great. The Pro one's would better.

01-08-2008 | 06:58 AM

#23

mrhorsepower1

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From: Cleveland, Ohio

Quote:

Originally Posted by ROTAX454

Hey Tyler, do you mean these heads?
http://www.sonnysracing.com/products...portheads.html

Ok, fun stuff put aside, you and Mr. Gellner have tons of experience in the marine performance arena. How would you score a Dart Iron Eagle vs. an AFR counterpart? I.E. similar runner and cc volume.

I personally like the Dart components. They flow better across the range. AFR flow numbers are inflated . I have personally flow tested many sets of heads on our 600 Superflow , and the number do not jive to what they really are. If your looking at price the Dart Iron Eagles are no doubt the way to go. They also have an alum. version which is 310 runner. Everyone has their preference. I also sell and use alot of Brodix Heads. Depending on application, one of these two companies will have a perfect match for what your looking to do. As we all know here, it's knowing what combinations work the best that will make the difference between bolting on 40 horsepower or gaining 100 HP.

01-08-2008 | 07:40 AM

#24

R Addiction

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From: Pa.

Quote:

Originally Posted by Noise Pollution

WOW Mike.....is that you? Here on OSO!!

01-08-2008 | 08:25 AM

#25

kennyo

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From: MT. JULIET, TN.

Quote:

Originally Posted by R Addiction

Heres a little more to think about.....

Can the 502 MAG/MPI injection setup support the HP I'm looking for?

Yes, but the computer will need reflashing.

01-08-2008 | 11:47 AM

#26

randy carlson

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From: Holland,MI

sorry to butt in but what are the specs o the 525 cam is it a roller or flat tappet thanks Randy

01-08-2008 | 12:12 PM

#27

Noise Pollution

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From: Upper Chesapeake Bay

Quote:

Originally Posted by R Addiction

WOW Mike.....is that you? Here on OSO!!

sure is

01-08-2008 | 02:45 PM

#28

jayhawk261

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From: Tulsa, OK

We used RHS heads on my 454 MAG MPI build up. With these and a Tyler Crockett camshaft, we mad 501hp & 535 lb*ft torque at really nice rpm numbers. The set was about $2200.00 complete with inconnel valves and all.

01-08-2008 | 11:24 PM

#29

MM1

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From: HUNTINGTON BEACH, CA.

AFR 315 are great heads I just did a pair of 509s for a customer and made 615 hp on 9.4 - 1 comp and had no problem running pump gas. The dart pro 1 heads are also very good but I wouldn't waste any of your money on Edelbrock heads.