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-   -   alum head vs iron head (https://www.offshoreonly.com/forums/general-q/268082-alum-head-vs-iron-head.html)

paintman 01-02-2012 09:07 AM

alum head vs iron head
 
besides the weight savings of alum heads what other advantages are there....and is it worth the extra $

RdRacerZ28 01-02-2012 10:33 AM

You can generally run more compression, they disappate heat better. I used Dart 180cc Pro1 heads on my 388 along with its EFI aluminum intake I shaved a tone of weight off the engine, almost 100 lbs from what I remember.


Originally Posted by paintman (Post 3583671)
besides the weight savings of alum heads what other advantages are there....and is it worth the extra $


vintage chromoly 01-02-2012 10:42 AM


Originally Posted by RdRacerZ28 (Post 3583723)
You can generally run more compression, they disappate heat better. I used Dart 180cc Pro1 heads on my 388 along with its EFI aluminum intake I shaved a tone of weight off the engine, almost 100 lbs from what I remember.

these two reasons are enough to justify the additional cost!

resale will be better as well when it's time to sell.

bcfountain 01-02-2012 11:07 AM

the alumium heads do not like salt water.cast iron holds up better in salt water.what type of cooling,closed water or fresh water?

RdRacerZ28 01-02-2012 11:07 AM

The boat actually sits a little higher at rest in the rear now, the previous water line is a good confirmation lol

RdRacerZ28 01-02-2012 11:08 AM

Agreed- No salt water here :)


Originally Posted by bcfountain (Post 3583739)
the alumium heads do not like salt water.cast iron holds up better in salt water.what type of cooling,closed water or fresh water?


tcwcar 01-02-2012 11:31 AM

you can get them hard anodized for the salt water...just bought 2 sets of AFR alum. heads and had them hard anodized them...I got them for use with new whipples, better flow, weight, better heat disapate...

RdRacerZ28 01-02-2012 12:37 PM

Dart can do this too..........

Good point.


Originally Posted by tcwcar (Post 3583757)
you can get them hard anodized for the salt water...just bought 2 sets of AFR alum. heads and had them hard anodized them...I got them for use with new whipples, better flow, weight, better heat disapate...


tcwcar 01-02-2012 12:45 PM

Yes they can, checked with Dart heads before going with AFRs...

paintman 01-03-2012 12:12 PM

So which manufacturer are you going with? afr, dart, merlin..


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