I was going through all my service manual, engine assembly manual.
Most I found was it wants you to dip bolts in oil for helping with torque specs

Are there any bolts for a 455 engine that require loctite or sealer, or you would recommend put on?

 

I don't know of any. If you torque them properly, they shouldn't back out.

- Eric

 

No. All of the holes are blind. Use oil to get the proper torque readings.

 

Thank yous The build continues.

 

Actually, the two bolts that hold the t-stat housing to the intake are open at the bottom and can use sealant.

 

Perfect timing Joe, I was just wondering about that.

 

good call Joe

The distributor clamp bolt also goes thru, but into a cavity that won't leak so that's not an issue.

The tstat housing bolts are the main concern.
Form-a-gasket #2 non-hardening is my suggestion.

There is one bolt that goes into the intake also, Left of the carb and fwd a bit, where the dashpot goes sometimes. It's just sealing vacuum though so as long as any bolt is in there that should be OK.

 

I use pipe sealer with Teflon on the thermo bolts.

 

Yup, forgot about that one. Not all intakes have it, however. Back in my young and stupid days I removed that dashpot on my first car (1968 VC) then couldn't figure out where the massive vacuum leak was coming from.

 

Wow, I have never done anything that stupid

[I almost said that with a straight face, too!]

Did you spill vacuum all over the engine?