Overview Reviews Product Description Custom Valve Seat for Flathead or any valve needing a 1.125 X 1.317 X .218 seat Product Videos Custom Field Product Reviews Write a Review Write a Review × 6138 Valve Seat, Flathead 1.125 X 1.317 X .218 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *