Type 1 & 2 Polished Degree Wheel Pulley, No Holes Black and the air vapors are

and the air vapors are vented to the atmosphere

Kit includes: (2) Rotors 5-lug dual pattern - 5 x 4-3/4" & 5 x 4-1/2" (Chevy & Ford) (2) Caliper mounting brackets (2) Calipers with #D101 Pads Caliper mounting hardware Installation Instructions

Head Bore: 85

But this new version is even better with the wider bent primary tubes for greater fresh air hose clearance and the lower exhaust tips to help clear the aftermarket rear aprons

This is a new set 86mm Porsche 356/912 JE pistons &cylinders

Type 1 & 2 Polished Degree Wheel Pulley, No Holes Black and the air vapors areCrank pulleys for VW Type 1 & 2 Engines with no holes Polished Degree Wheel Pulley, No Holes, "Black Numbers" 105353B Polished Degree Wheel Pulley, No Holes, "Red Numbers" 105354B Polished Degree Wheel Pulley, No Holes, "Blue Numbers" 105355B