Hex Head Intake Manifold Bolt Kit

The ARP 135-2001 Intake Manifold Bolt Kit provides a robust fastening solution for select Chevrolet Big Block engines. These hex head bolts are crafted from durable black oxide coated chromoly steel, offering a tensile strength rating of 170,000 psi, which is 15 percent stronger than Grade 8 steel. The design incorporates precision-rolled threads to prevent galling and ensure more consistent torque loading, crucial for maintaining a proper seal. Additionally, a wide-area flange is integrated into each bolt, distributing the load more effectively across the intake manifold surface. This kit includes the necessary washers and contains 16 bolts. Key specifications include a 3/8 in.-16 thread size and an underhead length of 1.250 inches. The black oxide finish not only provides a sleek aesthetic but also contributes to corrosion resistance. This kit is specifically designed for various Chevrolet Big Block applications spanning from 1966 through 1975, with specific fitments detailed for models such as the Bel Air, Biscayne, Brookwood, Camaro, Caprice, Chevelle, Corvette, El Camino, Impala, Kingswood, Laguna, Malibu, Monte Carlo, and Nova.