Here is a pair of Pontiac 6X heads.I cleaned them up a little bit to see if there were any cracks and I never seen any.All bolt holes are there no broken off bolts.These were high performance head for the smog era.2.11 intake valves and 1.66 exhaust valves.Supposed to have 101cc chambers on 400 motors and 91cc on 350 motors.I would say these are 101cc.They also have screw in studs.These are getting harder to come by.I would suggest to completely rebuild the before putting them on.Replace the guides and grind the valves and you would be ready to go.Cash Only
Call 785-205-0001 and leave a message and I will get back to you as soon as I can.
NO SCAMMERS!