Features & Benefits: Our Reman Cylinder Heads are remanufactured to meet or exceed OE specifications to deliver optimal performance. Each remanufactured cylinder head undergoes a rigorous 10-phase inspection and quality process. 100% NEW guides, valves, springs and seals. Valve seats are vacuum tested to ensure sealing integrity. All cylinder heads are pressure tested to ensure quality. Remanufactured in the USA to ISO 9001 quality standards. Please consult with your professional installer, per the manufacturer on V engine designs, it is always recommended to replace cylinder heads in pairs.
Side: FITS BOTH SIDES
Additional Information: Engine Code LLY Casting # 409-1
Applicable Engine Model: V; 8CYL; 6.6L; 403CID; DIESEL; General Motors
Applicable Engine Model Year: 2004-2008