all,

I have a chance to buy a set of GT40 heads...all the seller can tell me is he sees a code "GT" and "3D50". I've searched the archives and found that the GT40P have a "P". How can you confirm if the heads are regular GT40 and not GT40P? I have my 351 apart from my 94 F150 and and would pick up these heads if they are regular GT40's (don't want header surprises trying to match up the "P's" to my BBK headers.

Thanks in advance and apologies if I missed the answer in the archives.

Kind Regards,