Notes: Sure seat; high-performance street; Non-rotator; seat pressure 110-120 lbs.; od 1.44"; id 1.03";
Notes: Sure seat; street; rotator; seat pressure 61-69 lbs.; od 1.385"; id 1";
Notes: Sure seat; street; Non-rotator; seat pressure 61-69 lbs.; od 1.385"; id 1";
Notes: Single Outer 1.437" Outer; with damper; 1 piece; Requires VALVE SPRING RETAINER PN[747-1]; 50-State legal
Notes: Dual Assemblies 1.460 2 Spring Assembly; Seat load 155 @ 1.850; 16 pieces; Requires VALVE SPRING RETAINER PN[740-16]; Requires machining on cylinder heads; 50-State legal
Notes: Single Outer 1.460 Outer with damper; 1 piece; Requires VALVE SPRING RETAINER PN[740-1] or PN[743-1] or PN[747-1]; 50-State legal
Notes: Single Outer 1.460 Outer with damper; 12 pieces; Requires VALVE SPRING RETAINER PN[743-12]
Notes: Dual Assemblies 1.464 2 Spring Assembly; Seat load 332 @ 1.300; 16 pieces; Requires VALVE SPRING RETAINER PN[740-16] or PN[743-16]; Requires machining on cylinder heads; 50-State legal; Not legal for sale or use on pollution-controlled motor vehicle