Chevrolet TR-Series

TR SeriesEnginePart NumbersAdjustmentsNotesYear
163STR
Small Block V8 350
Small Block V6 4.3Z without balance shaft
S288FR, S289R, 3DR58Crank +/- 4 degreesWithout hydraulic roller cam1966 - 1981
168SA-1TR
Big Block V8 396, 454S394FR, S395R, 3DR66
Crank +/- 4 degrees1965 - UP
446HDSTR
Small Block V8S634F, S645R, 4SR46
Crank +/- 4 degreesWithout hydraulic roller cam
Uses 1/2" pitch single row roller chain with independent seamless rollers
1966 - 1981
710STR
Big Block V8S710F, S717R, 4SR50
Crank +/- 4 degreesUses 1/2" pitch single row roller chain with independent seamless rollers1965 - UP
784HDSTRV6 Small Block 4.3L without balance shaft
V8 Small Block 350 engine 8-keyway
S732FR, S645R, 4Sr46Crank +/- 4 degreesSmall block with hydraulic roller cam except motors with reverse flow cooliing sysstem
Uses 1/2" pitch single row roller chain with independent seamless rollers
8-keyways, 4-advances, 3-retarded
1985 - 2002
TR SeriesEnginePart NumbersAdjustmentsNotesYear