Do they come fire ringed?
Asked 2 years ago
ProMaxx FOR85XN Replacement Cylinder Head
Do these have valve guide inserts and what material copper or steel?
Asked 4 years ago
stock valve springs?
Asked 1 year ago
Are these sold as a pair or is this per head?
Asked 3 years ago
Do the studs come installed?
Does the new cylinder head come with gaskets?
Do these heads have hardened or thicker cast valve seat areas?
Who is the manufacturer of the head?