Tall design valve covers, they measure 3.7″ tall (1 1/4″ taller than stock). Features a black coated finish. Made of stamped steel. They accept all emissions equipment, including PCV valve. Both valve covers have internal breather baffles. Engines include: 283ci, 327ci, 305ci, 350ci, and 400ci small blocks. TECH NOTE: Will not clear stud girdles due to the internal baffles. TECH NOTE: Will clear most roller rockers. TECH NOTE: Will not fit 1987 and newer center bolt cylinder heads. This cover set is for the traditional side bolt mounting. 2 black tall profile steel valve covers. 2 black breathers that pull out of the covers for easy oil fill. Then simply push back in to replace them on the cover. Rubber grommet for the breather and PCV valve holes are included. ARP black oxide coated valve cover bolts with hex head and washers. Ultra Seal valve cover gaskets. They measure 3/16 thick and are manufactured from high density cork/rubber blend gasket material. Creates a positive seal by controlled swelling of the gasket material when exposed to hot engine oil. A black latex rubber coating is applied to outside of the gasket to help seal minor flange irregularities and eliminate the possibility of oil leakage. Do not make installation appointments until you have your item in hand.