• For any Big-Block Chevrolet engine
  • Includes 16 bolts: 3/8″-16 x 1.5″ with wide, underhead flange with a 7/16″ hex head
  • Rated at 170,000 psi and will give consistent torque load
  • Includes 16 hardened flat washers

NOTE: Four of these washers are smaller in diameter for use around the front water passages.