cast iron bowtie
 

i have been searching for a new set of phase 2 bowtie (14011034castings) heads--i haven't had any luck ---are they discontinued ?

Re: cast iron bowtie
 

Probably are discontinued since GM is offering the Vortec Bowtie heads which are light years over the older Bowtie heads.

Re: cast iron bowtie
 

I have 1 head new. It is out of box but has never been touched. I would like to give it a new home.

Re: cast iron bowtie
 

Firebird…Try Reher-Morrison's. They might have some "upstairs". Good Luck…MB.

Re: cast iron bowtie
 

What pistons can i run with the vortex heads----i have Mahle dome pistons with my rotating assembly. Is it wise to machine them to fit?

Re: cast iron bowtie
 

Firebird, an experienced machinist will have a fixture to measure the piston dome/top thickness. If you can machine to the needed dimension and have enough thickness remaining it will be fine to do so.

I "think" it has been said the Vortec is best with very small or no dome.

I do not know the min thickness needed but figger someone will help with that.

Re: cast iron bowtie
 

thanks for the reply ---maybe i'm to old to take a shot at this class---would a different set of pistons be a better option ? i want good compression ratio--THANKS FOR THE HELP

Re: cast iron bowtie
 

Firebird, what are your plans? What class and buildup details?

Re: cast iron bowtie
 

I'm still banging away at the ss/cs with a 350 chevy

Re: cast iron bowtie
 

You can use the large port Bowtie Vortec cylinder head or the approved Dart Cast Iron head.

Re: cast iron bowtie
 

Firebird, in that situation I expect you will want a piston specific to the head you decide to run.

Re: cast iron bowtie
 

You should contact Randy or Michael Mans.
They held the record many times in the class with the Bowtie Vortec heads.
They also flogged and tested every cylinder head in the market and stayed with the Bowtie Vortec.

Do a search were Michael speaks about his experiences with the different heads for SS/CS.

Re: cast iron bowtie
 

DO NOT USE vortec bowtie heads!!!!!!!!!! Ask me how many sets I have seen cracked for my SS/CS customer.