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Blue Thunder Rear Breather PCV Port/Cover 221/260/289/302 Intake

Item # ATF5

Blue Thunder Rear Breather PCV Port/Cover 221/260/289/302 Intake

Item # ATF5

Blue Thunder IM-3H-12

MSRP: $60.99

Our Low Price: $49.95

You Save 18% ($11.04)

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Description

Blue Thunder Rear Breather PCV Port or Cover for 221, 260, 289 & 302 Small Block Engines with Stock or Aluminum Intake Manifold.

Positive Crankcase Ventilation (PCV) ran the fumes created in the block through the carburetor air induction. The idea was to burn off these noxious gasses instead of venting into the atmosphere.

This plate gives the option of using the area at the rear/center of the manifold as a PVC port in lieu of the valve cover breather/PCV port or blocking off altogether. Includes gasket and a brass fitting that will accommodate a 1/2" I.D. hose. Thick enough to drill and tap.

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