Just got my bare castings in, what kind of casting number do you guys have on the heads. I'm just trying to verify that they're indeed LT1 heads.

Only thing I can find other than the serial number stamp is TFS-SBC-7.

Any help is appreciated. Thanks!

 

do they have angled bolt holes in the intake flange?

Are there only bolt holes and ports in the intake flange?

If so they are LT heads

Bret

 

if theres no gigantic cooling holes at each end and the only large holes are the ports.. you've got lt1

 

Outstanding. Thanks for clearing that up. The manifold bolt holes are angled and the only other things on the flange is the little holes for the intake manifold gaskets. I appreciate the help guys!!!