COMPATIBILITY – Fits GMP Performance V8, 396 (6.5L), 402 (6.6L), 427 (7.0L), 454 (7.4L), 502 (8.2L); PermaDry molded rubber GET THE RIGHT PART -- Before purchasing, please check the “Amazon Confirmed Fit” bar to ensure this part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes. If the “Amazon Confirmed Fit” bar has an “i” in a blue circle, this product has additional notes. Please hover over the “i” on the bar to see notes before making your purchase Rigid core, molded silicone rubber gaskets provide for ease of installation, and are great for on-again/off-again situations (like setting valve lash). Features high-tech silicone material for long life, a solid steel core for strength and durability, and stainless steel compression limiters Not intended for use in emission controlled vehicles.