Flathead Torque Specifications 1948-51 Six

Flathead V8 General Torque Specifications

Engine & Transmission Related Torque Settings
1947 to 51 Six (H series)

Bolt Location	Torque Setting Ft. Lbs.
Main Bearing Bolts or Nuts (self-locking)	95-105
Cylinder Head Bolts (cast iron heads)	65-70
Connecting Rod Nuts (self-locking)	45-50
Flywheel to Crankshaft (wired)	65-70
Flywheel to Crankshaft (self-locking)	75-85
Exhaust Manifold	25-30
Intake Manifold to Exhaust Manifold	30-35
Oil Pump to Block	10-15
Oil Pump Cover Plate	7-10
Timing Cover Bolts	15-18
Camshaft Timing Gear	15-20

Bolt Location	Torque Setting Ft. Lbs.
Clutch Pressure Plate Bolts	17-20
Transmission to Bell Housing	40-50
Starter Bolts	15-20
Fuel Pump	15-20
Spark Plugs ( )	24-28
Valve Chamber Cover	4-7
Clutch Housing to Block	37-42
Damper to Crankshaft	45-55
Rear Plate to Block	50-60
Generator Bracket	30-40
Water Pump Bolts	27-32
Oil Pan to Block	15-18