Overview Reviews Product Description Cylinder Head Gasket - 4.180 in Bore - 0.041 in Compression Thickness - Multi-Layer Steel - Small Block Ford - Each Product Videos Custom Field Product Reviews Write a Review Write a Review × Fel-Pro SBF MLS Head Gaskets 4.180in Bore .041in Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *