Replace the alternator in your early GM, Ford, or Chrysler with Proflow's PowerSpark alternators, you will have the genuine look in some most cases while incorporating the technology of today. PowerSpark alternators are available in raw aluminium, chrome, black or our new black wrinkled finishes. These are available in a variety of amperages and styles, allowing you to choose the best model for your application. So whether you need an alternator for your Street car, hot rod, muscle car PowerSpark gives you the power you need. All PowerSpark Alternators are factory tested before shipping to ensure a hassle free product. Aftermarket Alternator Ford Upgrade 100 Amp External Reg w/1 V-Belt Pulley Oem style raw aluminium Engine Application Ford 289ci Small Block V8 Ford 302ci Small Block V8 Ford 351C ci Small Block V8 Ford 351Cci Small Block V8 Ford 351Mci Small Block V8 Ford 390ci FE V8 Ford 400ci Small Block V8 Ford 427ci FE V8 Ford 428ci FE V8 Ford 429ci Big Block V8 Ford 429ci Big Block V8