[crossy]

They are listing 1976 intake gaskets by port size. Mine is a NON-smog  360-1 HD cycle(no emissions crap at all), has stock Holley 2 barrel. They show 1" x 2-3/16", and  7/8” x 2” intake port size.  I don’t know if large port was still the difference between a 318 and 360, or whether  the large port is referring to the old 340/early 360 port size.  I have ASSUMED that all small block, smog era LA heads had ‘small’ ports. thanks, Crossy

 

[ProjectPW]

360 engines all have the larger ports

 

[Elwenil]

In the '80s they could still be different.  They are listed as 2BBL and 4BBL in the early '80s catalogs.

 

[crossy]

1976  360 all original