valve seats for GM

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Competitor/OEM Name	Competitor/OEM Part	Part Number	Part Type	Note
GM	12350999	W-565	Valve Seat	Exhaust Seat
GM	12350998	W-575	Valve Seat	Exhaust Seat
GM	12350996	W-2524	Valve Seat	Intake Seat
GM	12350995	W-4656	Valve Seat	Intake Seat
GM	90412277	MW-1380 IN	Valves
GM	9128626	MW-1379 EX*	Valves	Recommended OEM Nickel Base Inconel Material, Stellite Face
GM	10137454	MW-220 EX*	Valves	Stellite Face
GM	14033927	MW-231 IN	Valves