Plymouth “A” 277, 301, 303, 313, 318, 326 Specifications

Firing Order

 

Torque Specs

These specs may not be correct for your application. Verify your engine specs with a service manual for your year and model, always torque bolts in three equal increments
Bolts or Parts Lube or Sealer Torque to:
Main Caps (2 bolt) Engine Oil 85 ft-lbs.
Warning!!!     If you are using ARP bolts, you MUST use their specs.  Click Here!
Connecting Rod Bolt Engine Oil 45 ft-lbs.
Cylinder Heads Engine oil (blind hole) Sealer (water jacket) 85 ft-lbs.
Rocker Studs (screw-in) Engine Oil
Oil Pump Engine Oil
Oil Pan Engine Oil
Cam Sprocket (upper gear) Thread Locker
Timing Cover Engine Oil
Intake Manifold (Cast Iron Heads) Non- Hardening Sealer 40 ft-lbs.
Valve Cover Engine Oil
Exhaust Manifold Anti-Seize Lubricant 25 ft-lbs.
Spark Plugs No Lube or Sealer
Flexplate (Automatic) Flywheel (Clutch) Thread Locker
Clutch Pressure Plate Thread Locker
Centerbolt (Harmonic Damper) Engine Oil 135 ft-lbs.
Bellhousing (Transmission to Block) Engine Oil 25 ft-lbs.

Head Bolt Tightening Sequence

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