Home  > Engine Specs  > Chrysler HEMI 426
About BoxWrench

Chrysler HEMI 426

Firing Order

Cylinder Numbering Distributor Rotation

Rotor Under Cap Spins:



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 Engine Oil 100 ft-lbs.
Main Cap Tie Bolts Engine Oil 45 ft-lbs.

If you are using ARP bolts, you MUST use
their specs.  Click Here!
Connecting Rod (7/16 bolts) Engine Oil 75 ft-lbs.

Cylinder Heads

     Iron Heads

     Aluminum Heads

Engine oil

(blind hole)


(water jacket)


75 ft-lbs.

70 ft-lbs.

Camshaft Cap Screw (Steet HEMI) Thread Locker 40 ft-lbs.
Camshaft Cap Screw (Race HEMI) Thread Locker 75 ft-lbs.
Rocker Shaft brackets Engine Oil 30 ft-lbs.
Oil Pump Engine Oil 35 ft-lbs.
Oil Pan Engine Oil 15 ft-lbs.
Timing Cover Engine Oil 10 ft-lbs.

Intake Manifold

(Cast Iron Heads)

Non- Hardening Sealer  
Valve Cover Engine Oil 6 ft-lbs.
Exhaust Manifold Anti-Seize Lubricant 30 ft-lbs.
Spark Plugs No Lube or Sealer 20 ft-lbs.

Flexplate/Flywheel Cap Screws

Thread Locker 70 ft-lbs.


(Harmonic Damper)

Engine Oil 135 ft-lbs.


(Transmission to Block)

Engine Oil 50 ft-lbs.

     New Items Available

New Harley Davidson
Maintenance & Repair

New Book/DVD Combo
Available Now
160 Pages and 2hrs of Video

Holley Carburetor
Install & Tuning DVD

New Book
Engine Blueprinting
Methods for Racing and Rebuilding

Basic Engine
Building DVD
Over 3hrs of Video

GM 4L60E
Rebuild DVD
3hrs of Video