Fits GM BB 396-502 exc 348 and 409, Ford 5.0L, SB 289-302-351W, Mopar 414PROFORM Wedge Locking Header Bolts ELIMINATE the need to constantly re tighten collector bolts, and without the need for clips, pins, racing wire, chemicals or gunk. The secret is in the Wedge Locking Washer's super hardened external teeth that "bite" into the bottom of the bolt head and the top flange surface. Vibrations that normally cause other bolts to loosen, are blocked by the wedge locking action that uses tension, instead of friction to stay

carving corners in the mountains or navigating cones at your local autocross

UMI 2020 measures 43" center to center

Simply remove the rod nuts

these control arms are designed for easy installation using OEM hardware

Includes O-Ring Seal

Roto-Joint uppers

This hole slop leads to noise during acceleration and braking

BMR highly recommends specific supporting modifications to reduce toe and geometry change

Minimize wheelhop and enhance the rear stability of your 2016 and newer Chevrolet Camaro by eliminating rear upper control arm bushing deflection with a set of Upper Control Arm Spherical Bearings from BMR Suspension

Systems with tips are also available

Top Sportsman (normally aspirated)

and SS (TCA029) are fully TIG-welded and constructed from heavy-duty 2-inch square tubing and internally-gusseted