

Steel Core Intake Manifold Gasket for 1968-1980 Chrysler, Dodge and Plymouth Small Block V8 318 LA, 340 and 360
Fel-Pro 1213S3 is a performance intake manifold gasket set built for Mopar small-block V8 sealing work where high vacuum, aftermarket manifolds, or less-than-perfect surfaces can make standard gaskets creep or leak. It fits Chrysler, Dodge, and Plymouth 318 LA, 340, and 360 small-block engines, and it is also used on Chrysler 5.2L and 5.9L Magnum carburetor intake conversions. A stainless steel core laminate and Printoseal port beads help keep the gasket stable and sealed in performance street, drag, and circle track applications.
Fel-Pro 1213S3 Technical Specifications:
- Stainless steel core laminate construction helps prevent the gasket from being pulled into the intake port under high-vacuum conditions.
- Printoseal technology places elastomer sealing beads around the ports to improve sealing load where leaks commonly start.
- Rectangular intake port design is sized at 2.270 in. port height and 1.160 in. port width for compatible small-block Chrysler cylinder head and intake combinations.
- .065 in. gasket thickness supports performance intake sealing while giving engine builders a known compressed interface dimension.
- Non-metallic facing material resists gasoline and alcohol and can be precision-trimmed when a custom port match is required.
- Engineered for repair and performance environments where manifold or cylinder head surfaces may not be perfect.
Well suited for high-performance street engines, drag cars with throttle stops, and circle track engines using restrictor plates. Verify port alignment, intake manifold selection, and local emissions requirements before installation.
Fits Chrysler, Dodge, and Plymouth small-block V8 318 LA, 340, and 360 applications, plus Chrysler 5.2L Magnum and 5.9L Magnum engines when converting to a carbureted intake. Not intended for emission-controlled vehicles.