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Our "Pro Series" 4340 alloy steel crankshafts are available with many value packed and high-performance enhancing features for a wide range of domestic engine applications
Stock control arms can lead to traction loss and poor handling due to bushing deflection and weak stamped material
Mercedes Fuchs/Mobil/Shell 3353
Extended drain intervals over other brands due to higher quality base stocks and excellent dispersants
and precise fitment
Collector Bolts-Blk 1991-pontiac-firebird-esi6483971 Our "Pro Series" 4340 alloyPROFORM Wedge Locking Exhaust Collector 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
