Universal GM CS130 Alternator Housing Case Internal Regulator Front and Rear Cover [Chrome] They fit carburetors with 5

They fit carburetors with 5 1/8 in

The Speedmaster shift selector shaft uses an O-ring to prevent leakage from GM TH400 cases

They feature larger radius stud fillets for extra strength

Speedmaster CNC ported cylinder heads are machined on dedicated 5-axis CNC machines to ensure accuracy and better flow

They're designed to be installed with no modifications

Universal GM CS130 Alternator Housing Case Internal Regulator Front and Rear Cover [Chrome] They fit carburetors with 5If you want the awesome look of a chrome alternator but your GM alternator is working great, let Speedmaster hook you up! These GM chrome alternator housings will bolt right on to most GM alternator applications. They feature a sleek chrome finish and you can use all of your existing hardware. Check out our alternator pulley selection.