Build It Yourself Engines

The First Complete Engine Building Kit.

Small Block Chevy V8 Specifications


Firing Order

Cylinder Numbering

Front of Block

Distributor Rotation

Rotor under cap spins in a CLOCKWISE motion

Torque Specifications


These torque specifications are for the BIY Engines 350 engine, and are common for many other Chevy 350 engines. If are using these for a reference on a different 350 ci engine, please double check and make sure they are correct for your year and model.


Our kit includes GM manufactured bolts, so these specs are correct if you are using the bolts supplied with this kit. If you are using ARP brand bolts, make sure to follow their recommended torque settings, which are included with their bolts.

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 Engine oil - blind hole. Thread sealer - water jacket 65 ft-lbs.
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 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.

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