Iron heads vs Aluminum small block Chrysler .

MIRADA · 10-26-2017, 10:35 AM

I know this question has likely been asked a lot but anyone using the replacement NHRA approved aluminum heads are you seeing gains , or would you have not spent the money in retrospect? Pros and cons would be great to hear , I am looking at getting a set done .. thanks

Patric Fox · 10-27-2017, 06:05 PM

I got a set I was going to use on a 360 build, but the intake port volume is too much for a 360. So they are sitting in my garage yet. Didn't want to cut the intake surface for NHRA Stock.

David Lee · 10-27-2017, 06:51 PM

Quote:

Originally Posted by MIRADA

I know this question has likely been asked a lot but anyone using the replacement NHRA approved aluminum heads are you seeing gains , or would you have not spent the money in retrospect? Pros and cons would be great to hear , I am looking at getting a set done .. thanks

talk to shane at precision cylinder heads

James L Miller · 11-07-2017, 12:37 PM

I think the aluminum heads would be great for SS where you can weld up the ports and reshape them. Not sure about stock unless it was for a big valve 340 with 2.02" intake valves. BB heads are worse with too big of valve sizes for stock. I suppose it depends on your wallet. It would be interesting to hear of the cost difference between prepped iron and aluminum heads.

GTX JOHN · 11-07-2017, 04:42 PM

It appears most real fast 340 Stockers have them now.
They require a lot of work to be successful and are not cheap!!

10-26-2017, 10:35 AM	#1
MIRADA Junior Member Join Date: Sep 2012 Location: Moncton N.B. Canada Posts: 25 Likes: 0 Liked 0 Times in 0 Posts	Iron heads vs Aluminum small block Chrysler . I know this question has likely been asked a lot but anyone using the replacement NHRA approved aluminum heads are you seeing gains , or would you have not spent the money in retrospect? Pros and cons would be great to hear , I am looking at getting a set done .. thanks __________________ Alan Harper SS/KA 1072 Dodge Mirada

10-27-2017, 06:05 PM	#2
Patric Fox Member Join Date: Jul 2007 Location: Pottstown,Pa. Posts: 121 Likes: 24 Liked 11 Times in 8 Posts	Re: Iron heads vs Aluminum small block Chrysler . I got a set I was going to use on a 360 build, but the intake port volume is too much for a 360. So they are sitting in my garage yet. Didn't want to cut the intake surface for NHRA Stock.

11-07-2017, 12:37 PM	#4
James L Miller Member Join Date: Apr 2005 Posts: 494 Likes: 6 Liked 25 Times in 16 Posts	Re: Iron heads vs Aluminum small block Chrysler . I think the aluminum heads would be great for SS where you can weld up the ports and reshape them. Not sure about stock unless it was for a big valve 340 with 2.02" intake valves. BB heads are worse with too big of valve sizes for stock. I suppose it depends on your wallet. It would be interesting to hear of the cost difference between prepped iron and aluminum heads. __________________ Mopar 2 Ya!

11-07-2017, 04:42 PM	#5
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,732 Likes: 2,797 Liked 2,475 Times in 697 Posts	Re: Iron heads vs Aluminum small block Chrysler . It appears most real fast 340 Stockers have them now. They require a lot of work to be successful and are not cheap!! __________________ John Irving 741 Stock 741 Super Stock