This listing is for a brand new set of Fel Pro Performance 1256 intake manifold gaskets. This set does not include any Fel Pro packaging.

The 1256 gasket is a regular port size with exhaust crossover openings and designed for use with cast iron & aluminum heads with conventional port and bolt locations that was used on stock 1955-1985 sb Chevy heads as many aftermarket heads like the Brodix 8 Street

• Part Number: 1256
• Brand: Fel Pro Performance
• Port Size Width: 1.23"
• Port Size Height: 1.99"
• Gasket Thickness: 0.060"
• Exhaust Crossover: Yes
• Country of Origin: USA
• Gasket Construction: Composite with Printoseal