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.