What is the torque specs on a Chevy 350 exhaust manifold?
Always torque bolts in three equal increments
| Bolts or Parts | Lube or Sealer | Torque to: |
|---|---|---|
| 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. |
How do you torque a flange?
Ensuring proper flange alignment….First to half torque and second to final torque.
- Put the socket on the head of the wrench.
- Turn the nut by hand until it catches the screw threading.
- Turn the handle clockwise to tighten the nut.
- Stop turning the wrench when it stops clicking or moving.
Can I use regular bolts for exhaust manifold?
Super Moderator. I agree, the bolts in place of studs and nuts would be okay. Be sure to observe the torque specs for the bolts, i.e. to be the same as the nuts on the studs. You dont want an exhaust manifold to be too tight – it interferes with the manifold expanding at a different rate than the head.
Can you use Grade 8 bolts on exhaust?
Using grade 8 in a linear clamping application is fine. They are harder and a little more brittle, so shear applications aren’t wise. I’ve hoisted engines with grade 2 bolts, but I’ve had one fall because of a broken grade 8.
What are the torque specs for exhaust manifold bolts?
The solid structure to which the pipe is bolted is the exhaust manifold. Installing a manifold requires careful torquing of the bolts. Every vehicle has different levels of torque necessary to properly tighten its bolts. The standard is to use 20 to 30 foot-pounds of torque.
How much does it cost to replace a manifold?
On average, the cost to repair the intake manifold gasket will depend on the mechanic you visit, where you live and the car you drive. On average, the complete repair, with labor and parts included, will be in the $300 to $1.050 range. The price range can widely vary, again,…
What size are exhaust manifold bolts?
Exhaust manifold bolt size. The bolts that connect the head to the exhaust manifold are 10mm – 1.50 – 60. The 8mm – 1.25 – 60 are for the flange connections.