




The PROFORM Lightning-Bolt is a 100 amp mini alternator that weighs only about 7 lb, nearly 40% lighter than a full-size 10SI that puts out the same amps. It makes 80+ amps at idle and 100+ amps at the top end, with a simple 1-wire hookup. This kit includes a billet aluminum adapter so it bolts directly into a standard GM 10SI mount.
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