Bell Housing to engine torque specs


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By 312YBlock - 3 Years Ago
Does anyone have torque spec for bell housing bolts to engine on 312 T-Bird. I checked the shop manual but no luck, or I’m looking in the wrong place.
By DryLakesRacer - 3 Years Ago
3/8” 16 threads per inch: Grade 2 is 20 grade 5 is 31 for an unplated cap screw. I would also  use a split lock washer. 
By 312YBlock - 3 Years Ago
Thanks DLR 😊
By Ted - 3 Years Ago
Minor correction here as Ford Y bellhousing bolts are 7/16-14.  The generally recommended torque specs for 7/16-14 are as follows.

Grade 2 - 32 lb/ft
Grade 5 – 49 lb/ft
Grade 8 – 70 lb/ft
By DryLakesRacer - 3 Years Ago
Sorry Ted bad assumption on my part.
By 312YBlock - 3 Years Ago
Ted would you know offhand what size/thread count bolts are used for the Transmission to bell housing.
By Ted - 3 Years Ago
It’s 7/16-14 for the bolts holding the transmission to the bellhousing for both the automatic and standard shift transmissions.
By 312YBlock - 3 Years Ago
Many thanks Ted😊