291 Head Differences - The Supercar Registry

10-03-2009, 02:16 AM

SuperNovaSS SuperNovaSS is offline

Yenko Contributing Member

Join Date: Sep 2001

Location: Santa Cruz, CA

Posts: 6,563

Thanks: 394

Thanked 701 Times in 365 Posts

291 Head Differences

I have 2 3964291 rectangular port heads. Both are cast D 23 70. The strange thing is the heads have "HI PERF" cast into them. This may be common but I have never noticed it before. Here is a picture of what I'm talking about:

Jason

Attachments - The Supercar Registry

423098-CastNumbers.JPG

Click here to view all the pictures posted in this thread...

« Previous Thread | Next Thread »

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules

Forum Jump

All times are GMT. The time now is 07:03 AM.

Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars.