[GoatZillaRacing]

IF... we were to build a cast iron head that outflowed every factory Pontiac head (except the RAV)

Would you buy it and what would you be willing to pay?

[72LuxuryLeMansLa.]

If the chambers were small enough to get 10:1scr with a Pontiac 350, yes I would! As far as what I would pay...…...Less than you would want! call it $1,000.00 US

[Schurkey]

The advantage to cast-iron over aluminum is cost. There may or may not be a theoretical advantage in heat retention and therefore power. That's kinda debatable.

In small production runs, aluminum might cost less than iron per finished casting.

If this were me, I'd be contacting the folks that make EngineQuest heads in New Zealand. They've got a good reputation in the Chevy world. You will have to make sure they get the machining right--they have some issues with their "complete" heads as sold in the USA via their distributor in Vegas.

Don't settle for "out-flowing" alone. Make sure the combustion chamber can out-burn OEM heads, too.

[tom s]

No,would do aluminum.tom

[Navy Horn 16]

Nope. If I'm going through the trouble to swap heads for high performance, I'm not putting iron back on the car.

[JLMounce]

I'm not in the market for heads as I already have a complete top-end, but I too would have to say nay on this one. If I was doing the swap I wouldn't consider iron unless the price was just drastically less.

[Formulas]

I have 11 or 12 sets of heads from 73 4X 455 to 70 614's plus a set of round port 75cc edelbrocks
But i got my iron stuff when it was in boneyards for 65.00

Probably alot more iron heads laying around than other parts but who knows

.

[grandam1979]

I would go aluminum also with aftermarket heads.

[unruhjonny]

Originally Posted by Formulas

I have 11 or 12 sets of heads from 73 4X 455 to 70 614's ...
But i got my iron stuff when it was in boneyards for 65.00

lucky you!

[dmac]

Such heads would have to be ~10% cheaper than aluminum to make up for the weight savings. A newly designed iron head that could be easily milled on both intake and chamber sides for different chamber sizes with a modern chamber design and maybe a better sealing valve cover would be worth owning. There is a need for heads with chamber sizes from about 70cc to 110cc or more.

[J.C.you]

In the circle track world where a iron head is required there could be a market, otherwise no.

[tom s]

there are lots of 70 CC heads out there,the mid range in the 90s are more limited.Lots of big CCs also.JMO,Tom

[ponjohn]

IF you wanted or needed iron heads - look at the cost of porting to 270 cfm- 1800 + your heads + freight both ways.

I would think if you can get an as cast 260cfm iron head for around 2000, that would sell. It must have a modern combustion chamber.

[ponyakr]

SD & Butler charge $1995 & up, for their iron D-ports. So, I'd say you should be able to get at least that much, for a good quality product.

http://www.sdperformance.com/listPro...p?categoryID=5

https://butlerperformance.com/i-2445...tegory:1234782

Lots of guys have posted that they spent $800 or more having the their iron heads done, without any porting. So, add in the price of good cores & porting, and you're approaching $2k.

But, for the guys who have plenty of good cores & do their own porting, they're not gonna buy new iron heads.

[hurryinhoosier62]

Originally Posted by Schurkey

The advantage to cast-iron over aluminum is cost. There may or may not be a theoretical advantage in heat retention and therefore power. That's kinda debatable.

In small production runs, aluminum might cost less than iron per finished casting.

If this were me, I'd be contacting the folks that make EngineQuest heads in New Zealand. They've got a good reputation in the Chevy world. You will have to make sure they get the machining right--they have some issues with their "complete" heads as sold in the USA via their distributor in Vegas.

Don't settle for "out-flowing" alone. Make sure the combustion chamber can out-burn OEM heads, too.

X 2.

[mgarblik]

Possibly it's from living in the Midwest, but Pontiac cores capable of going to 270 CFM without paper thin walls from internal rust are very few and far between. An out of the box 270+ CFM iron head for 2/3 the cost of aluminum would be great for the boost crowd. Continuous head gasket problems go away with the stiffness of an iron head bridging the 10 head bolt layout. Iron looks like iron, not aluminum, so more stock looking engines are easier to pull off. We already have Wenzler, Edelbrock, CV1's, Tigers, DCI, McCarty, Kauffman heads in multiple varieties available in aluminum. We have ZERO choices in iron.

[GoatZillaRacing]

Originally Posted by ponjohn

IF you wanted or needed iron heads - look at the cost of porting to 270 cfm- 1800 + your heads + freight both ways.

I would think if you can get an as cast 260cfm iron head for around 2000, that would sell. It must have a modern combustion chamber.

We have the ultimate chamber design, "HeartBurn" Chambers, they give the competition indigestion!

[GoatZillaRacing]

Originally Posted by mgarblik

Possibly it's from living in the Midwest, but Pontiac cores capable of going to 270 CFM without paper thin walls from internal rust are very few and far between. An out of the box 270+ CFM iron head for 2/3 the cost of aluminum would be great for the boost crowd. Continuous head gasket problems go away with the stiffness of an iron head bridging the 10 head bolt layout. Iron looks like iron, not aluminum, so more stock looking engines are easier to pull off. We already have Wenzler, Edelbrock, CV1's, Tigers, DCI, McCarty, Kauffman heads in multiple varieties available in aluminum. We have ZERO choices in iron.

To us, that looks like another great reason to bring these to the market.

[dmac]

Any discount for being a guinea pig? I'd be willing to test. Means I'd have to go an entirely different direction from my low CR 467ci plan.

[GoatZillaRacing]

Originally Posted by Schurkey

The advantage to cast-iron over aluminum is cost. There may or may not be a theoretical advantage in heat retention and therefore power. That's kinda debatable.

In small production runs, aluminum might cost less than iron per finished casting.

If this were me, I'd be contacting the folks that make EngineQuest heads in New Zealand. They've got a good reputation in the Chevy world. You will have to make sure they get the machining right--they have some issues with their "complete" heads as sold in the USA via their distributor in Vegas.

Don't settle for "out-flowing" alone. Make sure the combustion chamber can out-burn OEM heads, too.

Our "HeartBurn" Chambers are state of the art so that won't be a problem. Thanks for your suggestion but as far as going to New Zealand for castings, I'm going to keep those jobs and these heads MADE IN USA!