Fel-Pro 1206 S-3 is a performance intake manifold gasket set for Small Block Chevy Gen I V8 engines, including 262, 265, 267, 283, 302, 305, 307, 327, 350, and 400 cu. in. combinations. Its steel-core laminate construction helps keep the gasket stable around the intake port in high-vacuum and racing use, reducing the chance of sealing loss that can lead to vacuum leaks, misfires, or air-fuel mixture problems.

Fel-Pro 1206 S-3 Features:

• Steel-core laminate construction adds dimensional stability for high-vacuum and high-performance Small Block Chevy intake setups.
• Printoseal elastomeric sealing beads concentrate sealing load around the intake ports for stronger sealing at the manifold-to-head joint.
• Rectangular intake port openings measure 1.310 in. x 2.100 in., with a .065 in. gasket thickness for medium race port applications.
• Designed with no exhaust crossover openings or blocking shields for performance cylinder head and intake combinations that use conventional port and bolt locations.
• Compatible with cast iron and aluminum heads, including many OE and aftermarket heads such as Brodix 8, 10, 11, 11X, Track I, and Track IX.

Includes:

• Performance intake manifold gasket set

Well suited for circle track cars, drag cars, and long-service performance engines where gasket movement into the intake port under high vacuum can cost power or create sealing issues.

Not intended for emission-controlled vehicles. Confirm port size, intake manifold layout, cylinder head design, and exhaust crossover requirements before installation.