Fel-Pro 1205 S-3 is a performance intake manifold gasket set for traditional Chevy small block V8 engines where intake vacuum and hard use can pull a weaker gasket out of place. Its solid steel core laminate, Printoseal sealing beads, and gasoline and alcohol-resistant rubber-fiber facing help maintain port seal integrity on cast iron or aluminum aftermarket intake and cylinder head combinations.

Fel-Pro 1205 S-3 Technical Specifications:

• .065 in. gasket thickness supports consistent intake manifold sealing in performance small block Chevy builds.
• Rectangular intake ports measure 1.280 in. wide by 2.090 in. high for standard-port aftermarket cylinder head and manifold combinations.
• Solid steel core laminate helps resist gasket shift and reduces the chance of the gasket being drawn into the intake port under high-vacuum conditions.
• Printoseal elastomeric sealing beads add focused sealing pressure around the ports without requiring additional port sealer when installed dry.
• Non-metallic rubber-fiber facing resists gasoline and alcohol for use with common performance fuels.

A practical choice for high-vacuum racing and long-service performance street engines, including circle track engines with restrictor plates and drag racing combinations using throttle stops.

Fits traditional Chevy small block V8 262, 265, 267, 283, 302, 305, 307, 327, 350, and 400 engines. Not for LT1 or Vortec cylinder heads, and generally not intended for emission-controlled vehicles.