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For cast iron or aluminum heads. Can be used on Gen. (Mark) IV passenger car & HP blocks & Gen. (Mark) IV truck & bow tie blocks. Can NOT be used on Gen. (Mark) V & Gen. (Mark) VI blocks.

• End coolant holes in gasket - Both open per end
• Lower coolant holes in gasket - All three open
• Steel Core Laminate
• Pre-flattened Steel Wire
• Aluminum Head Brinneling - Minimal
• Gasket Bore - 4.540"
• Nominal Compressed Thickness - .051"
• Compressed Volume - 10.5cc

Fel-Pro® Gaskets are engineered to deliver a perfect seal on every engine. That's why virtually every NASCAR® Winston Cup and NHRA® Winston Drag Racing team - as well as a vast majority of professional engine rebuilders and vehicle service technicians - choose Fel-Pro over every other gasket brand.