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Small Block Chevy Engine Bolt Torque Specs


Always use lube or sealant listed below to insure proper torque and sealing.

Many Special Formulas are available to use for assembling your engine, or you can use motor oil if needed.

Assembling a motor properly requires preparing the fasteners. All bolts must be cleaned, lubricated and torqued to the proper specifications.

Information is available at the bottom of this page for ARP performance parts.
To properly assemble your engine use the guidelines below:




Bolts or Parts Lube or Sealer Torque to:

7/16 Main Caps (2 bolt) Engine Oil 70 ft-lbs.
7/16 Inner Main Caps (4 bolt) Engine Oil 70 ft-lbs.
7/16 Outer Main Caps (4 bolt) Engine Oil 65 ft-lbs.
3/8 Outer Main Caps (4 bolt) Engine Oil 40 ft-lbs.
3/8 Connecting Rod Bolt Engine Oil 45 ft-lbs.
11/32 Connecting Rod Bolt Engine Oil 35 ft-lbs.

Cylinder Heads
Head Bolt Torque Order

Sealer

65 ft-lbs.

Rocker Studs
(screw-in)
Sealer 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 30 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 60 ft-lbs.

Bellhousing

(Transmission to Block)

Engine Oil 25 ft-lbs.
Using High Performance Bolts?
ARP bolts Require special attention.They offer information online that covers the torque and lubricant method needed. www.arp.com/ highperformance bolts

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