Making Aluminum Heads Legal for all SuperStockers

[69ss/rs]

Originally Posted by treessavoy

Neither Indy nor Edelbrock make a legal set of heads for the big or small Mopars and I looked at the Edelbrock site and they list only THREE sets of NHRA accepted heads: BBF, BBO, and BBP; nothing for Amc and Buick and they list no legal aluminum heads for any of the small blocks.

JimR

Jim, in Edelbrocks' catalog they list part numbers for both small & big block mopar heads. Now as far as being legal, that is up to NHRA; no head is legal till they say so. You will also find the other heads you are looking for in there also.

[treessavoy]

Originally Posted by 69ss/rs

Jim, in Edelbrocks' catalog they list part numbers for both small & big block mopar heads. Now as far as being legal, that is up to NHRA; no head is legal till they say so. You will also find the other heads you are looking for in there also.

The Edelbrock Mopar heads are no where close to legal. The valves are too big, the ports are too, and the runners are too big....the same can be said of the Indy heads. To be legal for big blocks they would have to produce at least 6 different big block heads.

JimR

[RJ]

Originally Posted by treessavoy

The Edelbrock Mopar heads are no where close to legal. The valves are too big, the ports are too, and the runners are too big....the same can be said of the Indy heads. To be legal for big blocks they would have to produce at least 6 different big block heads.

JimR

Port size is not an issue, any competitive super stock head has the port floors brazed or epoxied anyway. You start by raising the port roofs as far as you dare, and fill in the floors to meet c.c. specs. and no, I don't race a max wedge (I have an LS1) as was alluded to before, I just think it's sad that the neat max wedge super stocks were a dime a dozen at one time, and there is only 1 that I know of running as of this year.

[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?

[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.