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Big Block Chevy V8

396 through 454cid.

Firing Order

Cylinder Numbering Distributor Rotation

Rotor Under Cap Spins:

Clockwise

NEW! Display Chevy Torque Specs on Your Site!


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 396-427

(2 bolt)

Engine Oil 95 ft-lbs.

Main Caps 396-454

(4 bolt)

Inner and Outer bolts

Engine Oil

110 ft-lbs.

Warning!!!    

If you are using ARP bolts, you MUST use
their specs.  Click Here!
3/8 Connecting Rod Bolt Engine Oil 50 ft-lbs.
7/16 Connecting Rod Bolt Engine Oil 70 ft-lbs.

Cylinder Heads

Engine oil (blind hole)

Sealer (water jacket)

75 ft-lbs. (long bolts)

65 ft-lbs. (short bolts)

Rocker Studs (screw-in) Engine Oil 50 ft-lbs.
Oil Pump Engine Oil 65 ft-lbs.
Oil Pan Engine Oil 12 ft-lbs.

Cam Sprocket

(upper gear)

Thread Locker 20 ft-lbs.
Timing Cover Engine Oil 6 ft-lbs.

Intake Manifold

(Cast Iron Heads)

Non- Hardening Sealer 25 ft-lbs.
Valve Cover Engine Oil 3 ft-lbs.
Exhaust Manifold Anti-Seize Lubricant 25 ft-lbs.
Spark Plugs No Lube or Sealer 20 ft-lbs.

Flexplate (Automatic)

Flywheel (Clutch)

Thread Locker 60 ft-lbs.
Clutch Pressure Plate Thread Locker 35 ft-lbs.

Centerbolt

(Harmonic Damper)

Engine Oil 85 ft-lbs.

Bellhousing

(Transmission to Block)

Engine Oil 25 ft-lbs.

 
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