valve seats for CHEVROLET R20

For CHEVROLET R20

Year	Make	Model	Engine	Part Type	Part Number
1988	CHEVROLET	R20	V8, 454 C.I., (7.4L), OHV, GAS, FI, 16 Valve, Vin B, J, N	Valves	MW-163 IN
1987	CHEVROLET	R20	V6, 262 C.I., (4.3L), OHV, GAS, FI, 12 Valve, Vin Z	Valves	MW-133 EX
1987	CHEVROLET	R20	V6, 262 C.I., (4.3L), OHV, GAS, FI, 12 Valve, Vin Z	Valves	MW-144 EX*
1987	CHEVROLET	R20	V6, 262 C.I., (4.3L), OHV, GAS, FI, 12 Valve, Vin Z	Valves	MW-156 IN
1987	CHEVROLET	R20	L6, 292 C.I., (4.8L), OHV, GAS, LPG, CARB, FI, 12 Valve, Vin S, T	Valves	MW-1677 EX*
1987	CHEVROLET	R20	L6, 292 C.I., (4.8L), OHV, GAS, LPG, CARB, FI, 12 Valve, Vin S, T	Valves	MW-218 EX*
1987	CHEVROLET	R20	L6, 292 C.I., (4.8L), OHV, GAS, LPG, CARB, FI, 12 Valve, Vin S, T	Valves	MW-694 IN
1987	CHEVROLET	R20	L6, 292 C.I., (4.8L), OHV, GAS, LPG, CARB, FI, 12 Valve, Vin S, T	Valves	MW-1490 IN