Need help identifying SBM cast iron head
The heads with ex rotators usually came on 3/4 ton and up, and/or industrial applications.
Some of that style 360 came with the intake heat crossover being water instead of exhaust.
The only heads I’ve seen like that in person were closed chamber and had 1.78/1.50 valves and 318 sized ports.
As I recall, the water crossover heads don’t have the air gap pocket on the intake flange by the crossover.
So, if the pocket is there, it’s not those heads.
I did a little “googling”, and I found some info I had forgotten on the HD heads.
They use 18mm spark plugs.
Here’s the crossover:
The heads with ex rotators usually came on 3/4 ton and up, and/or industrial applications.
Some of that style 360 came with the intake heat crossover being water instead of exhaust.
The only heads I’ve seen like that in person were closed chamber and had 1.78/1.50 valves and 318 sized ports.
As I recall, the water crossover heads don’t have the air gap pocket on the intake flange by the crossover.
So, if the pocket is there, it’s not those heads.
I did a little “googling”, and I found some info I had forgotten on the HD heads.
They use 18mm spark plugs.
Here’s the crossover: