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If you plan on running a set of our street performance or competition valve springs
It has great street manners and will make your truck feel lighter and more fun to drive
Works With All 6
14 O-rings
ARP Ultra-Torque Fastener Assembly Lubricant has been specifically designed to reduce tension preload scatter and eliminate the need to cycle high performance engine fasteners before final installation
Kill Devil Diesel O-Ring Cylinder Heads 6.0 Size:20mm If you plan on runningThe heads start off as new heavy duty castings, thicker than original equipment, then they go through a meticulous inspection process prior to machining. They are machined to our exacting, proprietary specifications including our multi angle valve seat profile (maximizes valve sealing and improve heat transfer away from the valves for long life), modified valve height to correct excessive lifter preload, and deeper valve recession to allow more piston
