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Re-torque intake manifold bolts?

O

o2bboatn

Member
Last year had engine rebuilt, 502, 1989 Gen.IV. Have been running a breakin period for 10 hours, verying between 1800 and 2200 rpm. I understand that the intake manifold bolts should be re-torqued at this time. What should they be torqe to, and any specific sequence?

Thanks for any info!
 
10 then 20 then 30 lb-ft. on an iron manifold. Sequence is a bit complex to describe. But, if its just a retorque, start at the middle, alternate sides, work outward.
 
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