What is the torque on a Chevy 350?
James Stevens
Updated on April 24, 2026
Top-End Torque Specs The Chevrolet 350 cylinder-head torque specification is 65 ft. -lbs.
What is the torque specs for Chevy 350 heads?
Always torque bolts in three equal increments
| Bolts or Parts | Lube or Sealer | Torque to: |
|---|---|---|
| 11/32 Connecting Rod | Engine Oil | 45 ft-lbs. |
| Cylinder Heads | Engine oil (blind hole) Sealer (water jacket) | 65 ft-lbs. |
| Rocker Studs (screw-in) | Engine Oil | 50 ft-lbs. |
| Oil Pump | Engine Oil | 65 ft-lbs. |
What’s the torque specs on a 454?
Big Block Chevy Torque Specs
| Fastener Type | Torque Specs |
|---|---|
| Main Cap Bolt (396-454, 4-Bolt, Inner and Outer) | 110 ft.-lbs. |
| 3/8 in. Connecting Rod Bolt | 50 ft.-lbs. |
| 7/16 in. Connecting Rod Bolt | 67-73 ft.-lbs. |
| Cylinder Head Bolts, Long | 75 ft.-lbs. |
How do I find out my engine torque specs?
Calculate Torque
- Fill your values into the equation T = K x U x D x P.
- Solve the equation T = 1.33 times 0.20 times 0.50 inches times 13,927 lb. The total is 1,852 inches lbs.RE. Reduce the value into ft-lb. You can do this by dividing your value by 12, the number of inches in a foot.
Are Chevy 350 head bolts torque to yield?
All 1995 and earlier LT-series engines use the same head bolt torque (65 ft. -lb.) and tightening sequence as the original small block. GM switched to torque-to-yield (TTY) bolts in 1996, which require a slightly different approach.
What size is a 7.4 liter engine?
The 7.4L (454 cubic-inch) V8 was a big-block engine manufactured by the Chevrolet Division of General Motors starting in 1970. It was the second-largest Chevy production engine after the 8.2L, or 502 cubic-inch motor.
What is a torque spec?
When attaching a wheel to a vehicle, torque specifications are the amount of force recommended on the hardware to ensure proper installation. It can damage the wheel, strip the bolts and even cause the brake rotors to warp. Too much torque also can damage brake rotors.
What are specs for a 5.3 Chevy engine?
5.3 Chevy Engine Specifications Similarities and Differences. The 5.3-liter Vortec engine shares just two common features of the previous 5.7-liter and 5.0-liter Gen II and earlier Chevy V8 platforms: the cylinder spacing (at 4.4 Physical Specifications. Power Output.
What is the head bolt torque on a 350 Chevy?
The torque specifications for Chevrolet 350 cubic inch V8 head bolts are 65 foot-pounds per bolt if securing the stock cast iron head.
What are the torque specs for a Chevy 350 intake?
The specifications given are for the typical 350 engine. The Chevrolet 350 cylinder-head torque specification is 65 ft.-lbs. The intake installed onto cast-iron heads requires 30 ft.-lbs.
