ARP High Performance Intake Manifold Bolt Kit - Black Oxide - SB Chevy 265-400 - Hex Heads 2010002 This is the medium size

This is the medium size version with a 30 degree angle and FIA/SFI certification

finished look from the outside

Allstar In-Line Fuel Filters

Have problems installing freeze plugs

ARP High Performance Intake Manifold Bolt Kit - Black Oxide - SB Chevy 265-400 - Hex Heads 2010002 This is the medium sizeHigh Performance Intake Bolts feature generous flanged bolt heads for even loading and precision ground, hardened washer to prevent galling and promote accurate torque readings. ARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, IMSA, NASCAR and