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Mild Steel 1-5/8" Block Huggers
Suit GM LS Series

The Aeroflow Performance block hugger headers are a universal fitment to suit the GM LS1/LS6 They are a retro fit, tight fit block hugger designed for use in conversion cars.

This header kit will include the following:

2 x Header Manifold.

2 x Exhaust Manifold Gasket.

2 x 3-Bolt Collector Flange.

2 x 3-Bolt Collector Exhaust Gasket.

2 x Weld-in Oxygen (o2) Sensor M18 x 1.5mm Bung.

12 x M8 x 1.25mm Header Bolt.

6 x 3/8”-24 Bolts with Nuts and Washers.

Primary Tube Diameter - 41.28mm (1-5/8”).

Collector Diameter - 63.5mm (2-1/2”).

Exhaust Ports - Round 42.4mm x 42.4mm (1-43/64” x 1-43/64”).



Width of Header at Widest Point from Exhaust Port - 104.9mm (4-1/8”).

Height of Header from Top of Flange to Lowest Point - 311.15mm (12-1/4”).

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