Header Bolts 3/8-16 3/4" Uhl Hex Head Black Pack Of 12 Intake Manifolds Manufacturer requirements vary between 18

Manufacturer requirements vary between 18 and 20 inches of vacuum

or water tank

Part Number : PFESVP170

For Holden 5L EFI VN VP VR VS Commodore

RACEWORKS STEERING WHEEL CENTRE BLANKING PLATE

Header Bolts 3/8-16 3/4" Uhl Hex Head Black Pack Of 12 Intake Manifolds Manufacturer requirements vary between 18Part Number: AF37 1000 when installing headers youwill need header bolts, factory exhaust manifold boltswon't work. These header bolts are made from grade 8 steel for strength. They are coated in a black oxide for protection and long lasting durability. Each hex head is designed to take a7 16" spanner size. This compact hex head is ideal for use where space is minimal on most aftermarket header flanges.