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View Full Version : Torque Specs for 429


79time
02-02-2009, 07:48 PM
The 4 Door has a 429 from a 71 mercury and I was wondering if somebody has the torque specs.

Interested in the following:
Head bolts
Exhaust and Intake bolts
Timing cover bolts.

Thanks

Blue79
02-02-2009, 07:56 PM
Main cap bots 95-105 ft.-lbs.
Connecting rod bolts 40-45 ft.-lbs
Cylinder head bolts (follow factory torque sequence) 140 ft.-lbs.
Rocker arms (non-adjustable) 18-22 ft.-lbs.
Intake manifold bolts 25-30 ft.-lbs.
Oil pump bolt 25 ft.-lbs.
Cam bolts 40-45 ft.-lbs.
Harmonic damper bolt 70-90 ft.-lbs.
Flywheel/ flexplate bolts 75-85 ft.-lbs.
Pressure plate bolts 35 ft.-lbs.
Front cover bolts 12-18ft. lbs.

Blue79
02-02-2009, 07:58 PM
Exhaust manifold 28-33

79time
02-02-2009, 07:58 PM
Thank you.

Blue79
02-02-2009, 07:59 PM
:D Anytime