I was posting in the cooling thread about my 97 Conti' over heating. Turns out it is the head gasket that is blown. I have some questions about upgrading the heads. The engine is a 32v 4.6. I have recently found out that not all 4.6s are the same. The Mustang/Cobra 4.6 is a single ohc and this one is dual.

What mods are available for this job? Thanks for the feedback.

-Lew

What does NPI and PI mean. -Lew

I think it is ported and non ported intake, but i gotta check on that.

The marks are dual overhead cams and i think the new cobras are. check lincolnmotorsport.com I will see what i can find for DOHC sport heads.