Iron VS Aluminum heads

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02-10-2016 | 08:48 PM

#141

1989mach1

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Joined: May 2011

Posts: 3,313

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From: medina ohio/ vermilion ohio

I am not a motor builder by no means but after the last 22 thousand dollar engine project I am willing to give it a shot and try.... well with the help of some friends and all of you of course lol

02-10-2016 | 08:57 PM

#142

Panther

Frank's Marine Service

Joined: Sep 2002

Posts: 11,959

Likes: 142

From: Elkton, MD

Quote:

Originally Posted by horsepower1

First time I saw the EQ BB Chev heads at PRI I thought they would be a player in the iron head market, especially for the price. I think you made a good choice.

They are the old RHS head from what I'm hearing.

02-10-2016 | 09:00 PM

#143

Panther

Frank's Marine Service

Joined: Sep 2002

Posts: 11,959

Likes: 142

From: Elkton, MD

Quote:

Originally Posted by Full Force

Ya well let me tell you about a lesson learned... Nothing like buying them assembled and "ready" then to spend even more making them right... As me how I know...

I wouldn't put assembled heads on an engine without at least having them checked. Most common thing I've seen are tight exhaust guide clearances. not setup for marine or blowers.

02-10-2016 | 09:02 PM

#144

Panther

Frank's Marine Service

Joined: Sep 2002

Posts: 11,959

Likes: 142

From: Elkton, MD

Quote:

Originally Posted by 1989mach1

My top ends have less the 50 hours on them so not looking to throw them away but if I where to get a bare set of newer style round port head to get more flow would I be able to switch everything over. Or would it not be worth it and just wait till the next rebuild or brake to switch to the new ones?

Not sure... Do the EQ heads come with 11/32 valves or 3/8? Most performance heads are 11/32. If you have 3/8 you would need at least new valves, retainers and keepers.

02-10-2016 | 09:04 PM

#145

Panther

Frank's Marine Service

Joined: Sep 2002

Posts: 11,959

Likes: 142

From: Elkton, MD

Quote:

Originally Posted by 1989mach1

I am not a motor builder by no means but after the last 22 thousand dollar engine project I am willing to give it a shot and try.... well with the help of some friends and all of you of course lol

Ouch!!! Wish I could make that much doing engine projects for friends....I might make it my day job...lol. We've all been burned at some point or another.

02-10-2016 | 09:05 PM

#146

Full Force

Gold Member

Joined: Oct 2005

Posts: 11,688

Likes: 216

From: Olmsted Falls,Ohio Marblehead,Oh

Quote:

Originally Posted by Panther

I wouldn't put assembled heads on an engine without at least having them checked. Most common thing I've seen are tight exhaust guide clearances. not setup for marine or blowers.

I guess my point is to buy them assembled, pay to have them checked then clearances the cost is more then bare and build heads...

02-10-2016 | 09:08 PM

#147

Panther

Frank's Marine Service

Joined: Sep 2002

Posts: 11,959

Likes: 142

From: Elkton, MD

Not always, it depends what kind of deals you can get on valves and springs mainly. Sometimes the packages are hard to beat even if they need a once over.

02-10-2016 | 09:09 PM

#148

mike tkach

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Joined: Oct 2007

Posts: 8,439

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From: yorkville,il

what if i told you guys the best head is not iron or aluminum!

02-10-2016 | 09:11 PM

#149

MILD THUNDER

Thread Starter

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Joined: Jul 2004

Posts: 11,332

Likes: 73

From: chicago

Quote:

Originally Posted by Panther

Not sure... Do the EQ heads come with 11/32 valves or 3/8? Most performance heads are 11/32. If you have 3/8 you would need at least new valves, retainers and keepers.

11/32