dart to GM head test
 

any one a-b-a test the dart head # 12400 & 12402 to a GM 462 or a 041 head .

Re: dart to GM head test
 

good question...

Re: dart to GM head test
 

I've heard you'll find water on the darts in places you won't on the gm's.

Re: dart to GM head test
 

Tim
Are those #'s from Dart? I believe their p/n's have 8 digits.
Dave

Re: dart to GM head test
 

Try putting seats in those old camel hump heads and see how much water you will hit.

Re: dart to GM head test
 

[QUOTE=carl hinkson;376890]Try putting seats in those old camel hump heads and see how much water you will hit.[/QU Try it with the darts, likiey you will have the same results.

Re: dart to GM head test
 

hard seats are factory installed @ dart.

Re: dart to GM head test
 

What the heck am I missing.. I saw another post on the other forum about Zavala running a 'replacement' 441 head..... So we now have NHRA accepted aftermarket 255 SBC heads for SS ???? Where is this posted ?? I just checked the latest "NHRA accepted products" list and there is nothing listed ??????

Re: dart to GM head test
 

Hi,

Just go to the NHRA Classification Guide and look up 1969 Chevrolet 350/255 hp....

You will also pay with 5HP for the honor of running Dart, RHS or World heads....

Bob

Re: dart to GM head test
 

RHS no longer makes cast iron heads !!