Overview Product Description LH. MLS. .0394" thickness. 4.147" fire ring ID. Use new head bolts. Product Videos Custom Field Product Reviews Write a Review Write a Review × Engine Components Engine Cylinder Head Gasket - Kit Part - HC403L-B Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments