COMPATIBILITY – Fits GMP Performance V8, 265 (4.3L), 283 (4.6L), 302 (4.9L), 307 (5.L), 327 (5.3L), 350 (5.7L), 400 (6.6L) 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 Felcoid/Plus gaskets have a fiber sheet core and a latex rubber coating to eliminate potential leakage paths. The core material inhibits crushing and splitting, while inhibiting blowout. Steel core inhibits blowout. Not intended for use in emission controlled vehicles.