head casting numbers!!!!

[cupp_cody]

Any one know much on this head casting number? I cant find much on them only there 76 cc chamber. 3986336x

 

[RetroC10Sport]

1971 350.

 

[Manbearpig]

Thats a pretty big chamber

 

[HotRodPC]

Yep, all my sources are saying 71 350 76cc chamber. Doesn't specify what size valve, but I'll assume 1.94 / 1.5 . I only assume that cuz of year model and big cc volume.

 

[crazy4offroad]

Here's a list for easy reference...
http://www.kendrick-auto.com/chevrolet_head_casting_number_re.htm
EDIT sorry that wasnt much more help than what you already knew

 

[cupp_cody]

Ya there 194s im thinking a big cam to go with those heads

 

[cupp_cody]

Well that's for the help. I noticed there machined down a little around the valve seats when I took them apart lastnight