Chevrolet 4000-Series

4000 SeriesEnginePart NumbersAdjustmentsNotesYear
PG4100
V6 4.3z without balance shaft, without hydraulic roller cam
V8 350 Small Block without hydraulic roller cam		S288FRM, S289RX-9, 3DR58GCrank +/- 2,4,6,8 degrees1966 - 1981
PG4100-1
Small Block V8S634FM, S645RX-8, 4SR46Crank +/- 2,4,6,8 degreesWithout hydraulic roller cam
Uses 1/2" pitch single row roller chain with independent seamless rollers		1966 - 1981
PG4100-1T
Small Block V8S634FMT, S645RX-8, 4SR46Crank +/- 2,4,6,8 degreesWithout hydraulic roller cam
With 1-piece torrington bearing		1966 - 1981
PG4100-1TST
Small Block V8S634MT, S645RX-8, 4SR46, TB220Crank +/- 2,4,6,8 degreesWithout hydraulic roller cam
With 1-piece torrington bearing		1966 - 1981
PG4100T
Small Block V8S288FRMT, S289RX-9, 3DR58G, TB220Crank +/- 4 degreesWithout hydraulic roller cam
With 1-piece torrington bearing		1966 - 1981
PG4100TST
Small Block V8S288RM, S289RX-9, 3DR58G, TB220Crank +/- 4 degreesBoth sprockets billet steel
Without hydraulic roller cam
With 1-piece torrington bearing		1966 - 1981
PG4101
V8 348, 409S634FM, S645RX-8, 4SR48Crank +/- 2,4,6,8 degrees409 Uses 1/2" pitch single row roller chain1958 - 1965
PG4101T
V8 348, 409S634FMY, S645RX-8, 4SR48, TB220Crank +/- 2,4,6,8 degreesWith 1-piece torrington bearing
409 Uses 1/2" pitch single row roller chain		1958 - 1965
PG4110
Big Block V8S394FRM, S395RX-9, 3DR66GCrank +/- 2,4,6,8 degrees1965 - Up
PG4110T
Big Block V8S394FRMT, S395RX-9, 3DR66G, TB220Crank +/- 2,4,6,8 degreesWith 1-piece torrington bearing1965 - Up
4000 SeriesEnginePart NumbersAdjustmentsNotesYear
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