Alright gearheads, listen up! If you're building or rebuilding a Small Block Chevy and need exhaust gaskets that won't blow out, these Cometic MLS gaskets are what you want. We're talking multi-layer steel construction that can handle the heat and pressure of performance exhaust systems without leaking. The rectangular port design (1.450 x 1.480 inches specifically) seals perfectly against your headers or manifolds. Unlike cheap paper gaskets that burn through, this MLS design maintains its seal through extreme temperature changes and vibration. Installation is straightforward - just make sure your surfaces are clean and flat. These come as a pair, so you're covered for both sides of your V8. Perfect for street builds, track cars, or anything in between. The package dimensions are 15.63 x 5.05 x 0.91 inches if you're wondering about storage. Seriously, don't cheap out on exhaust gaskets - nothing ruins a good drive like exhaust leaks messing with your performance and that sweet engine sound. These provide a reliable seal that lasts, saving you from doing the job twice. Whether you're running stock manifolds or aftermarket headers, this is one of those small parts that makes a big difference in how your engine runs and sounds.