Fel-Pro 1212 S-3 is a performance intake manifold gasket set built to seal Chevy big-block V8 engines from 396 to 572 CID, especially when intake or cylinder head surfaces are not perfect. Its steel core laminate construction and Printoseal elastomeric sealing beads help control vacuum leaks at the ports, protecting power in high-vacuum combinations while supporting street, marine, circle track, and drag racing use.

Fel-Pro 1212 S-3 Features:

• Oval intake port openings measure 1.820 in. wide by 2.050 in. tall, with a .065 in. gasket thickness for Chevy big-block V8 intake setups using matching oval-port architecture.
• Steel core laminate construction helps keep the gasket from being drawn into the intake port under high-vacuum conditions.
• Printoseal elastomeric beads are placed around the ports to improve sealing on less-than-perfect mating surfaces.
• Non-metallic rubber-fiber facing is designed to resist gasoline and alcohol for demanding engine environments.
• Open water crossover style matches applications that require this coolant passage layout.

Includes:

• Intake manifold gasket set

Designed for stock configurations that need added sealing durability, as well as performance street, marine, circle track, and drag racing engines. Builders may precision-trim around intake ports when required for the specific manifold and head combination.

Fits Chevy big-block V8 396, 402, 427, 454, 502, 510, 540, and 572 CID engines with conventional port and bolt locations. Compatible with cast iron and aluminum cylinder heads using GM or Edelbrock oval ports, plus Brodix FF-010 EFI setups. Not intended for use on emission-controlled vehicles.