Torque Pattern for Big Block Chevrolet
366, 396, 402, 454
366, 396, 402, 454
Big Block Chevrolet
Torque Specs
Main cap bolt, 396-427 2-bolt 95 ft.-lbs.
Main cap bolt, 396-454 4-bolt (inner/outer) 110 ft.-lbs.
3/8 in. connecting rod bolt 50 ft.-lbs.
7/16 in. connecting rod bolt 67-73 ft.-lbs.
Cylinder head bolts, long 75 - 80 ft.-lbs.
Cylinder head bolts, short 65-68 ft.-lbs.
Screw-in rocker arm studs 50 ft.-lbs.
Intake manifold bolts (cast iron head) 25 - 30 ft.-lbs.
Oil pump bolt 65 ft.-lbs.
Cam sprocket bolts 20 ft.-lbs.
Harmonic damper bolt 85 ft.-lbs.
Flywheel/Flexplate bolts 60 ft.-lbs.
Pressure plate bolts 35 ft.-lbs.
Bell housing bolts 25 ft.-lbs.
Exhaust manifold bolts 20 ft.-lbs.
Timing Cover 7 ft-lbs.
Oil Pan Bolts 7 ft-lbs large bolts 12 ft-lbs
Valve Cover Bolts 5 ft-lbs
Camshaft Sprocket Bolts 20 ft-lbs
Water Pump Bolts 20 ft-lbs
Temprature Sending unit 20 ft-lbs
Spark Plug 5/8 15 ft-lbs
13/16 22 ft-lbs
Torque Specs
Main cap bolt, 396-427 2-bolt 95 ft.-lbs.
Main cap bolt, 396-454 4-bolt (inner/outer) 110 ft.-lbs.
3/8 in. connecting rod bolt 50 ft.-lbs.
7/16 in. connecting rod bolt 67-73 ft.-lbs.
Cylinder head bolts, long 75 - 80 ft.-lbs.
Cylinder head bolts, short 65-68 ft.-lbs.
Screw-in rocker arm studs 50 ft.-lbs.
Intake manifold bolts (cast iron head) 25 - 30 ft.-lbs.
Oil pump bolt 65 ft.-lbs.
Cam sprocket bolts 20 ft.-lbs.
Harmonic damper bolt 85 ft.-lbs.
Flywheel/Flexplate bolts 60 ft.-lbs.
Pressure plate bolts 35 ft.-lbs.
Bell housing bolts 25 ft.-lbs.
Exhaust manifold bolts 20 ft.-lbs.
Timing Cover 7 ft-lbs.
Oil Pan Bolts 7 ft-lbs large bolts 12 ft-lbs
Valve Cover Bolts 5 ft-lbs
Camshaft Sprocket Bolts 20 ft-lbs
Water Pump Bolts 20 ft-lbs
Temprature Sending unit 20 ft-lbs
Spark Plug 5/8 15 ft-lbs
13/16 22 ft-lbs
Bolt Torque Specifications for the Big
Block Chevrolet
Camaro
Chevelle
Corvette
El Camino
Monte Carlo
Nova
Chevy Truck
Block Chevrolet
Camaro
Chevelle
Corvette
El Camino
Monte Carlo
Nova
Chevy Truck
Nothing Runs Like a Big Block Chevy!
Torque Numbers for Big Block Chevy
| Spark Plugs for 1969 396 & 427...........................AC R44XLS 1970 402 (265HP)......................AC R44 454 (345HP)......................AC R44T 454 (390-450HP)...............AC R43TS 1971 402.....................................AC R45TS 454.....................................AC R43TS 1972 454.....................................AC R43TS |
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