Making Aluminum Heads Legal for all SuperStockers

[X-TECH MAN]

Originally Posted by Al Kuehl

I alway's liked the Max Wedge car' s . I thought Stacy McCarthy said that Mopar had the 518M as a replacement head . They were just really cool car's .
Al

The correct 518M head is almost impossable to find now. Not all of them came with the correct valve size either from MoPar. I went thru 3 sets to find 1 pair that was correct. 2,14 intake size is a little to large if you want to go thu teardown. Mopar dosent care about anything except the SS/AH Hemis and the new "Paper Cars".

[Lynn A McCarty]

Originally Posted by X-TECH MAN

The correct 518M head is almost impossable to find now. Not all of them came with the correct valve size either from MoPar. I went thru 3 sets to find 1 pair that was correct. 2,14 intake size is a little to large if you want to go thu teardown. Mopar dosent care about anything except the SS/AH Hemis and the new "Paper Cars".

Actually Terry,

They made two versions. One was a stock replacement with the 2.08 valve the other was with the 2.14 like an upgrade head. We ordered a set from Chrysler and got them straight away. This was about a year ago. They were 100% better for porting than the stock castings. They flow 30 more cfm with a smaller valve than my Hi-Po Pontiac heads or Stacy's 428 heads. Of course they got good cc numbers from the NHRA cc fairy and we didnt.

This puppy made huge power, but Grand-Pa Ron is hugely scared of it. He has gone from 10.70 in the spring to 10.10 last weekend. About a 1.45 60 foot. Come on Grandpa put your foot into it!

[X-TECH MAN]

Originally Posted by Lynn A McCarty

Actually Terry,

They made two versions. One was a stock replacement with the 2.08 valve the other was with the 2.14 like an upgrade head. We ordered a set from Chrysler and got them straight away. This was about a year ago. They were 100% better for porting than the stock castings. They flow 30 more cfm with a smaller valve than my Hi-Po Pontiac heads or Stacy's 428 heads. Of course they got good cc numbers from the NHRA cc fairy and we didnt.

This puppy made huge power, but Grand-Pa Ron is hugely scared of it. He has gone from 10.70 in the spring to 10.10 last weekend. About a 1.45 60 foot. Come on Grandpa put your foot into it!

The ones we had came in the box and all had the same part numbers on the box. We had to check them to see which were 2,14 and which were 2.08. Have you tried to get them lately?

[dragst racer]

I have read this and have a question, the guy that started this do you run super stock?

[69ss/rs]

Originally Posted by dragst racer

I have read this and have a question, the guy that started this do you run super stock?

Did you miss the post where I said that I have two motors one aluminum and one iron. Or the post where I said how much money I had spent on getting heads fixed. If I didn't have a SuperStocker than this subject wouldn't be me issue.

[Lynn A McCarty]

Originally Posted by X-TECH MAN

The ones we had came in the box and all had the same part numbers on the box. We had to check them to see which were 2,14 and which were 2.08. Have you tried to get them lately?

Nope we only need the 1 set for Ron's SSer. Next time on Bischoff's dyno we hope to clip the 800HP mark. Not a bogus number same dyno that many other SSers including Stacy's. Getting Grandpa to let her loose is a different story! (I tried to post pictures but the files are too big, look on my picture album.)

I have been through the process of trying to get alum heads approved for my Pontiac. NHRA has very tough guidelines for approving heads. The E-heads are virually identical to my 455SD heads, but they would not allow them because the combustion chamber numbers werent close enough to the stock 455SD heads. Dont think they will allow you to scoop them out cause they wont. Their exact words were that they werent going to allow us to make our own combustion chamber.

The reason you cant allow alum heads to be on all SSers is that you will have engines with passenger car HP ratings have the capability of high performance horsepower results. With the abortion done to the CC rules with some people getting 10, 20, up to 30 ccs extra, you can possibly get a 200HP rated motor making over 600 HP. Ooooops!! That has already happened!!!!!!!!!(about 5 motors I can think of probably more).

With the unscientific method of the AHFS and its slow correction factors....it will take 20 years to get them in line, then they all stop getting hit way before it is realistically finished. By design the AHFS keeps the bogus motors all at the top.

[SS Engine Guy]

Originally Posted by Lynn A McCarty

Dont think they will allow you to scoop them out cause they wont. Their exact words were that they werent going to allow us to make our own combustion chamber.

Lynn, your post was spot on about the AHFS. And as you said 600 ain't nothing. I just wanted to quote the above line to show how bogus the combustion chamber rule is. Heads are routinely welded and reshaped, material removed from the chamber itself. It all flies thru tech. The head shops quote and advertise it. And aluminum would make it much easier to hide, not that a good cast iron welder can't already do that on old heads. Everytime that something is allowed it is because some group is already doing it and instead of a vacation we all get a rule change/revision.
On the BBC aluminum replacement we did the guides and a comp valve job and back to backed steel and aluminum. Suffice it to say: Does anyone know who did the R&D for the Chev. replacement heads?