M52/S52 Ported and polished

[rich318i]

Just checked realoem and S52 heads are the same part number as M52's

So does that mean M52 heads are ported and polished as the S52's are??

[DanThe]

I think you might be onto something..

[rich318i]

I think you might be onto something..

All valves, springs and lifters are the same on both heads

Build numbers might be involved also.. for ported and polished

My build No: CF12 EURO

and the last build Number on oem for S52 is CD93 US

Think you might have to finger one of your spare heads you got liying about dan.

i do remember on mine the inlet was ruff but the valve ports chamber was smoother

if thats classed as ported and polished not a clue