moonlitmechanic
+1y
I did a reman head off eBay from J&C Enterprises about 2 years ago, I had an intake valve stick open about 5 months ago and haven't driven the truck since (about to finally have time to fix it). Have a bad taste in my mouth from the rebuilt heads off eBay since.
I keep hearing about these mysterious new heads that Mazda apparently released with improved coolant passage design. Does anyone know anything about these?
Rockauto sells this cylinder head brand new: EngineTech Cylinder Head, but I called EngineTech and apparently this is a casting of the OEM design, no improvement over stock (although well-priced at under $300 from rockauto).
I also saw this cylinder head: CIFIC Cylinder Head. I called the company that sells them and apparently these are an improved design, but unfortunately you have to transfer over your valves, springs and camshaft/rockers, as it is a completely bare head.