620 intake exhaust torque settings

Charllie in MO · Mar 4, 2013

I am putting an intake and exhaust off a lp on a 620, if someone knows right off how many pounds torque is called for on the manifolds.
Thank you,
Charlie

Bob Harvey · Mar 4, 2013

I don't think there is a specific # in the manuals. There are online torque to size values available. Good and tight works for me. HTH

Charllie in MO · Mar 4, 2013

Tight will work just fine, thanks so much.
Charlie

teddy52food · Mar 4, 2013

Just check & retighten after a few hot-cold cycles.

BushogPapa · Mar 4, 2013

Just be SURE to slather those Manifold bolts well with Anti-Seize, so you can tighten them again later..

I HOPE you took the time to MATCH the Intake Ports
to the Head and gasket..
They usually do not match-up very well and After-Market manifolds are far worse, too..

Clean up the Exhaust manifold, too..

A Premium, Performance Valve Job will improve breathing too..

Ron..

Charllie in MO · Mar 5, 2013

How do you match the ports? You lost me there. Charlie

BushogPapa · Mar 5, 2013

You use a rotary carbide (File) in a drill, to rough it to shape, then use round sanding drums to finish it out..
Use the intake manifold gasket as a pattern..

Ron..

Charllie in MO · Mar 6, 2013

Thank you all for your help, got her up and running and feeding silage again.
Charlie

620 intake exhaust torque settings

Charllie in MO

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Bob Harvey

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teddy52food

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