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Your #3829387 Alt. pulley has an outside diameter of 3-5/8",and a shaft Dia. of 4-3/64",with a 1/2" wide Deep belt groove.
Was used on: 1965-66 Impala series w/spcl.Hi-perf 396. 1966 Chevelle w/spcl.Hi-Perf 396. 1967 Camaro w/302. More sought after Alt. Pulley #1970831 has an outside Dia.3-3/16".shaft Dia of 11/16" with a 1/2" Deep belt groove. No identifying numbers were stamped into this pulley. Was used on: 1969-70 Chevelle w/solid lifter 396,454 1969 Impala series w/solid lifter 427 1969-70 Nova w/solid lifter 396 1969 Camaro w/solid lifter 302,396,427~COPO 1970 Camaro/Nova w/LT-1 350 Last edited by Mr70; 08-07-2020 at 04:42 PM. |