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Registered User
Join Date: Jul 2000
Location: NC
Posts: 987
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bolt torques
Just spent 20 minutes looking for bolt torque values and found this. Hope it helps someone else.
http://www.summitracing.com/expertad...7-643795928fcd Small Chevy Fastener Type Torque Spec 7/16 in. outer main cap bolt 65 ft.-lbs. 7/16 in. inner main cap bolt 70 ft.-lbs. 3/8 in. outer main cap bolt 40 ft.-lbs. 11/32 in. connecting rod bolt 38-44 ft.-lbs. 3/8 in. connecting rod bolt 40-45 ft.-lbs. Cylinder head bolts 65 ft.-lbs. Screw-in rocker arm studs 50 ft.-lbs. Intake manifold bolts (cast iron heads) 30 ft.-lbs. Oil pump bolt 60-70 ft.-lbs. Cam sprocket bolts 18-20 ft.-lbs. Harmonic damper bolt 60 ft.-lbs. Flywheel/flexplate bolts 65 ft.-lbs. Pressure plate bolts 35 ft.-lbs. Bellhousing bolts 25 ft.-lbs. Exhaust manifold bolts 25 ft.-lbs. Big Chevy Fastener Type 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 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 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. Bellhousing bolts 25 ft.-lbs. Exhaust manifold bolts 20 ft.-lbs. |
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