like i said no big deal... just asking questions and stating what i think...

i dont know why they would ever do it for a 68 car since reproduction iron heads are available,,,,

im not trying to be spiteful or anything jay,,, just dont know why people would get wound up about it,,, everybody says they will make less hp,, and they have to carry more weight

Is there any gain in affecting the weight distribution? 40 lbs off front, 100 lbs more in the rear? I guess we'll see.

Where is this stated in Nhra about aluminum heads?

i know the theory...but i think they will be the preferred head in the end...we'll se i guess...and as to why they would do it,cause somebody asked...as far as im concerned they should go ahead and go
all the way and allow tit valves and(can you of anything that prostock has that superstock isnt allowed?) drysump?

It is highlighted (yellow) in the Engine Specification guide.

It was highlighted in yellow in the guide on 1/4/2013, as of today, 1/8/2013, it is not in the guide. I have a copy of the guide from 1/4/2013 when I downloaded the excel file that shows it. When I checked it today, it isn't there.

It was there and now, poof, its gone.

It was in the NHRA Engine Blueprint Specifications on 1/4 and is still there today, 1/8, as a cylinder head casting.

E = 2780559,2780559-M, 559-M1, 2531110M2 alum

Anyone know what a 559-M1 head is? That was added since 1/4, which previously only listed the 2531110M2 alum. Is there another source for steel head castings?

That 599M1 is in yellow as it was just added in 2013, so it is only now a legal casting to run. It wasn't in there prior to the most recent update. So mopar makes two reproduction steel hemi heads? I didn't know that. Wondering why the new part number was there with the AL addition.

cant speak to exact,, but "most" of all the "new" ray stuff is with an m1 casting,, and "most" of charlies stuff is with an m1 casting,, more metal around intake port,,, better exh port, deeper long side,, m1 head is a few lbs heavier than an m head

i asked about running an m1 head about 2 years ago and was told to grind the 1 off at the end of the part number

i just looked,, they took the weight off the aluminum head,, this is soooooooooo stupid


jeff

a side note,,, if you say a "replacement head" has to carry a 10hp hit,,, what that is implying is that any head other than a factory 559 head will be hit,, maybe thats why they took it off,,, because really,, they would be adding 60lbs to every car in the class

559m,,,, 559m1,,, and now 110m2 heads are all replacements for the original 559


jeff

whats the big deal???...like i said it will be the preferred head in the end...im sure the ball cupper that pushed this is waiting with his
scraper in hand, waiting to hand scrape the sand cores at the foundry and remove the port and water jacket cores before the alum is poured...noone pushed this without a percieved advantage...whether it
prove out for them we'll have to wait and see....

Any AH cars coming to Gainesville in a few weeks and with what for heads? Chuck

the guy who pushed it is like 70 years old and cant take his own head off his motor in the car or even on a stand.... chill out everyone


chuck,, no clue,, who,, what is going to gainsville,, nobody knows what the rule is on the v-cover bolt yet

I talked to Bruce Monday and he said he would make a decision this week on the heads. I am mad at myself Jeff for not keeping on this to get it resolved. I am planing on going to Gainesville and if they rule against the heads i am screwed . Chuck

dont mind me im just stirrin sh_t....i do think its funny that they changed the rule becaue one guy cant cant lift iron heads tho...

Maybe all us Hemi guys could chip in and buy him a set of plastic heads they r light.

Chuck, There is a nice car for sale at a low, low price that comes equipped with the "legal" CW heads. A real Super Cuda if you know what I mean. LOL

Your right Frito somebody should jump on it! What about You ?