Exhaust Header / Manifold Gasket - 1.420 x 1.620 in Peanut Port - Steel Core Laminate - Spread Port Heads - Small Block Ford - Pair MPN - R2 DART & TFS, E-351. (DUAL BOLT PATTERN, STOCK FORD & INLINE SPREAD BOLT DART & TFS) Vendor FEL-PRO Truck Freight-- NO