1966-71 6 Cylinder Engines

1965 Chevrolet Impala Base, Not Available, 4.6L Eng, Automatic Trans, Trans Mfr CD PowerglideSECTION 1966-71 6 Cylinder Engines
  1. Raise car and support front of car. Remove nut, washer and engine mount through bolt. Raise engine at forward edge of oil pan (place a block of wood between jack and pan). Remove mount.
  2. Install flywheel on crankshaft and position to align dowel hole of crankshaft flange and flywheel. Install bolts and torque to specifications.
    NOTE: On auto, trans, equipped vehicles, flywheel must be installed with flange collar to transmission side.
  3. Install mount to frame bracket and torque to specification. Lower engine until mounts rest on frame crossmember in normal manner. Install mount to bracket bolt and torque to specification. Remove frame support and lower car.
BUICK TIGHTENING SPECIFICATIONS 6 CYL ENGINES

1964-67 Application Ft. Lbs.
Upper Flywheel Housing-to-Block 30-35
Lower Flywheel Housing-to-Block 8-12
Man. Trans.-to-Flywheel Housing
  3-Speed Transmission 40-45
  4-Speed Transmission 45-60
Auto. Trans.-to-Block 30-40
Motor Mount-to-Block
  1964 50-55
  1965-67 50-75
Motor Mount-to-Frame 55-65
1968-73(1) Application Ft. Lbs.
Flywheel Housing-to-Block 30
Lower Flywheel Housing 7
Motor Mount Bracket-to-Block
  1968 35
  1969-71 33
Motor Mount-to-Bracket (1968-71) 45
Motor Mount-to-Engine (1973) 35
(1) - 6 Cyl. engine not used in 1972.
V8 ENGINES

1964-67 Application Ft. Lbs.
Converter Housing-to-Block 45-55
Auto. Trans.-to-Block 30-40
Auto. Trans.-to-Converter Housing 35-40
Man. Trans.-to-Flywheel Housing 45-60
Flywheel Housing-to-Block
  3-Speed 30-35
  4-Speed 45-50
Motor Mount-to-Block
  1964 50-55
  1965-67 (Exc. 401" & 425") 50-75
  1965-67 (401" & 425") 25-40
Motor Mount-to-Frame 55-60
1968-73 Application Ft. Lbs.
Lower Flywheel Housing Plate (Auto. Trans.) 4
Lower Flywheel Housing Plate (Man. Trans.) 11
Flywheel Housing-to-Block 35
Motor Mount-to-Block
  1968 70
  1969-73 63
Starter-to-Block 35
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.