Shorty headers are ideal for ease of installation and provide the maximum ground clearance . They were originally made for Cruciform framed (`67-`70) Rivieras, but also fit other popular combinations and  transplants. 1-7/8” primaries, 3” collectors. Exits similar to stock manifolds. Approximately 10 HP less than Competition headers on 500 HP combinations.

• Note: Full length headers may not align correctly with the humps in transmission cross members of some full sized cars. 

• Note: Most Header installs require re-routing of the transmission lines on the passenger side.

With Air refers to cars that have an air conditioning box on the firewall. With Out Air refers to cars that never had A/C or the box has been  removed. Also use With Air headers on combinations were the engine was moved farther back in the engine compartment.