C 2500 Suburban 2WD V8-454 7.4L VIN J SFI (1998)
Valve Seat: Specifications
Seat Angle (Intake & Exhaust) .......................................................................................................................................................................... 46 degrees
Seat Runout (Intake & Exhaust) ................................................................................................................ 0.051 mm (Maximum)(0.002 inch Maximum)
Seat Width Intake ...................................................................................................................................................... 0.762-1.524 mm (0.030-0.060 inch)
Seat Width Exhaust ................................................................................................................................................... 1.524-2.413 mm (0.060-0.095 inch)
