M8 8mm Base to 3/8" Rocker Arm Screw In Stud Kit (1.380" Above Hex) Chevy GM LS Speedmaster peep mirrors feature stainless

Speedmaster peep mirrors feature stainless steel mirror heads and chrome plated zinc die-cast arms

They're also available for most popular automatic transmissions

They have a fully adjustable mounting head and adapter fingers

which keeps debris from entering your air intake system and provides better airflow

M8 8mm Base to 3/8" Rocker Arm Screw In Stud Kit (1.380" Above Hex) Chevy GM LS Speedmaster peep mirrors feature stainlessSpeedmaster arm stud kits are made of 4140 Chromoly steel. They're roll threaded, heat treated to a maximum strength of 190,000+ PSI. and have a black oxide corrosion resistant finish. They feature larger radius stud fillets for extra strength.