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Posted on Jun 20, 2009
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Need torque specs for a 85 s10 chevy with a 2.5 engine?

Rebuilding engine and need torque specs for the head, rods and mains.

1 Answer

Nicholas Csorba Jr.

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  • Expert 148 Answers
  • Posted on Jun 21, 2009
Nicholas Csorba Jr.
Expert
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An expert who has achieved level 2 by getting 100 points

All-Star:

An expert that got 10 achievements.

MVP:

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An expert whose answer got voted for 100 times.

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Rod bolts torque specs 6.0 l engine in chevy 2004

Connecting Rod Bolts - First Pass
20 N·m
15 lb ft

Connecting Rod Bolts - Final Pass
85 degrees of bolt head rotation.
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Flywheel torque spec's for 1983 Ford F-100

Could it be a F-150 instead?
Ford Engine Bolt Torque Chart Bolt Torque Spec Chart for Ford Engines

These specs are for stock-type bolts with light engine oil applied to the threads and the underside of the bolt head. Moly and other lubes offer reduced friction and increased bolt tension, which will affect the torque figure. If you use after-market performance bolts like ARP's, you should follow the recommended torque specifications.

260, 289, 302 Torque Spec.
Fastener Type Torque Spec Main cap bolts 60-70 ft-lbs Outer main cap bolts 35-40 ft-lbs. Connecting rod bolts (40-45 ft-lbs. for 289 HP & Boss 302) Cylinder head bolts 65-72 ft-lbs. Rocker arms 17-23 ft-lbs. Intake manifold bolts 23-25 ft-lbs Oil pump bolt 23-28 ft-lbs. Cam bolts 40-45 ft-lbs. Cam thrust plate bolts 8-10 ft-lbs. Harmonic damper bolts 70-90 ft-lbs. Flywheel / flex-plate bolts 75-85 ft-lbs. Pressure plate bolts 35 ft-lbs. Front cover bolts 12-15 ft-lbs. 351W Torque Spec.
Fastener Type Torque Spec Main cap bolts 95-105 ft-lbs Connecting rod bolts 40-45 ft-lbs. Cylinder head bolts 90-100 ft-lbs. Rocker arms 17-23 ft-lbs. Intake manifold bolts 23-25 ft-lbs. Oil pump bolts 23-28 ft-lbs. Cam bolts 40-45 ft-lbs. Cam thrust plate bolts 8-10 ft-lbs. Harmonic damper bolt 70-90 ft-lbs. Flywheel / flex-plate bolts 75-85 ft-lbs. Pressure plate bolts 35 ft-lbs. Front cover bolts 12-15 ft-lbs. 351C, 351M Torque Spec.
Fastener Type Torque Spec Main cap bolts 95-105 ft-lbs. Connecting rod bolts 40-45 ft-lbs. (45-50 ft-lbs. For Boss 351C) Cylinder head bolts 105 ft-lbs. (125 ft-lbs. For Boss 351C) Rocker arms (non-adjustable) Rocker arms (non-adjustable) 5/16in. intake manifold bolts 21-25 ft-lbs. 3/8in. intake manifold bolts 28-23 ft-lbs Oil pump bolt 25 ft-lbs. Cam bolts 40-45 ft-lbs. Cam thrust plate bolts 9-12 ft-lbs. Harmonic damper bolt 70-90 ft-lbs. Flywheel / flex-plate bolts 75-85 ft-lbs. Pressure plate bolts 35 ft-lbs. Front cover bolts 12-18 ft-lbs. 360, 390, 406, 427, 428FE Torque Spec.
Fastener Type Torque Spec Main cap bolts 95-105 ft-lbs. Crossbolts for 406-427 40 ft-lbs. Connecting rod bolts 40-45 ft-lbs. (53-58 ft-lbs. For 406 and 427) Cylinder head bolts 80-90 ft-lbs. (100-110 ft-lbs. For 1963-67 427) Rocker arm shaft bolts 40-45 ft-lbs. Intake manifold bolts 32-35 ft-lbs. Oil pump bolt 12-15 ft-lbs. Cam bolts 40-45 ft-lbs. Harmonic damper bolt 70-90 ft-lbs. Flywheel / flex-plate bolts 75-85 ft-lbs. Pressure plate bolts 35 ft-lbs. Front cover bolts 12-15 ft-lbs. 429-460 Torque Spec.
Fastener Type Torque Spec Main cap bolts 95-105 ft-lbs Connecting rod bolts 40-45 ft-lbs. Cylinder head bolts 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 / flex-plate bolts 75-85 ft-lbs. Pressure plate bolts 35 ft-lbs. Front cover bolts 12-18 ft-lbs.
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Torque spec's for the fly wheel

Ford Engine Bolt Torque Chart Bolt Torque Spec Chart for Ford Engines

These specs are for stock-type bolts with light engine oil applied to the threads and the underside of the bolt head. Moly and other lubes offer reduced friction and increased bolt tension, which will affect the torque figure. If you use after-market performance bolts like ARP's, you should follow the recommended torque specifications.

260, 289, 302 Torque Spec.
Fastener Type Torque Spec Main cap bolts 60-70 ft-lbs Outer main cap bolts 35-40 ft-lbs. Connecting rod bolts (40-45 ft-lbs. for 289 HP & Boss 302) Cylinder head bolts 65-72 ft-lbs. Rocker arms 17-23 ft-lbs. Intake manifold bolts 23-25 ft-lbs Oil pump bolt 23-28 ft-lbs. Cam bolts 40-45 ft-lbs. Cam thrust plate bolts 8-10 ft-lbs. Harmonic damper bolts 70-90 ft-lbs. Flywheel / flex-plate bolts 75-85 ft-lbs. Pressure plate bolts 35 ft-lbs. Front cover bolts 12-15 ft-lbs. 351W Torque Spec.
Fastener Type Torque Spec Main cap bolts 95-105 ft-lbs Connecting rod bolts 40-45 ft-lbs. Cylinder head bolts 90-100 ft-lbs. Rocker arms 17-23 ft-lbs. Intake manifold bolts 23-25 ft-lbs. Oil pump bolts 23-28 ft-lbs. Cam bolts 40-45 ft-lbs. Cam thrust plate bolts 8-10 ft-lbs. Harmonic damper bolt 70-90 ft-lbs. Flywheel / flex-plate bolts 75-85 ft-lbs. Pressure plate bolts 35 ft-lbs. Front cover bolts 12-15 ft-lbs. 351C, 351M Torque Spec.
Fastener Type Torque Spec Main cap bolts 95-105 ft-lbs. Connecting rod bolts 40-45 ft-lbs. (45-50 ft-lbs. For Boss 351C) Cylinder head bolts 105 ft-lbs. (125 ft-lbs. For Boss 351C) Rocker arms (non-adjustable) Rocker arms (non-adjustable) 5/16in. intake manifold bolts 21-25 ft-lbs. 3/8in. intake manifold bolts 28-23 ft-lbs Oil pump bolt 25 ft-lbs. Cam bolts 40-45 ft-lbs. Cam thrust plate bolts 9-12 ft-lbs. Harmonic damper bolt 70-90 ft-lbs. Flywheel / flex-plate bolts 75-85 ft-lbs. Pressure plate bolts 35 ft-lbs. Front cover bolts 12-18 ft-lbs. 360, 390, 406, 427, 428FE Torque Spec.
Fastener Type Torque Spec Main cap bolts 95-105 ft-lbs. Crossbolts for 406-427 40 ft-lbs. Connecting rod bolts 40-45 ft-lbs. (53-58 ft-lbs. For 406 and 427) Cylinder head bolts 80-90 ft-lbs. (100-110 ft-lbs. For 1963-67 427) Rocker arm shaft bolts 40-45 ft-lbs. Intake manifold bolts 32-35 ft-lbs. Oil pump bolt 12-15 ft-lbs. Cam bolts 40-45 ft-lbs. Harmonic damper bolt 70-90 ft-lbs. Flywheel / flex-plate bolts 75-85 ft-lbs. Pressure plate bolts 35 ft-lbs. Front cover bolts 12-15 ft-lbs. 429-460 Torque Spec.
Fastener Type Torque Spec Main cap bolts 95-105 ft-lbs Connecting rod bolts 40-45 ft-lbs. Cylinder head bolts 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 / flex-plate bolts 75-85 ft-lbs. Pressure plate bolts 35 ft-lbs. Front cover bolts 12-18 ft-lbs.
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Toque specs on a 1971 in line 6 mercury comet's rod bearings and the clearance between the bearing and crankshaft

TORQUE SPEC FOR ROD BEARING BOLTS 19 - 24 FT LBS TORQUE SPEC FOR MAIN BEARING BOLTS 60 - 70 FT LBS, CRANKSHAFT PULLEY BOLT 85 - 100 FT LBS. MAIN BEARING OIL CLEARANCE .0005 - .0022 CONNECTING ROD OIL CLEARANCE .0008 - .0015 / SHAFT END PLAY .004 - .008 / AND ROD SIDE CLEARANCE IS .004 - .011 HOPE THIS HELP THIS INFORMATION I GAVE YOU IS INLINE 6 -200 AND INLINE 6 - 250 ENGINES
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Need torque specs for 83 chevy 350 cylinder head bolts.

Hello there
Torque Specs
These specs may not be correct for your application.
Verify your engine specs with a service manual for your year and model.
always torque bolts in three equal increments
Bolts or Parts Lube or Sealer Torque to: 7/16 Main Caps (2 bolt) Engine Oil 70 ft-lbs. 7/16 Inner Main Caps (4 bolt) Engine Oil 70 ft-lbs. 7/16 Outer Main Caps (4 bolt) Engine Oil 65 ft-lbs. 3/8 Outer Main Caps (4 bolt) Engine Oil 40 ft-lbs. Warning!!! If you are using ARP bolts, you MUST use
their specs. Click Here! 3/8 Connecting Rod Bolt Engine Oil 45 ft-lbs. 11/32 Connecting Rod Bolt Engine Oil 45 ft-lbs. Cylinder Heads
Engine oil
(blind hole)
Sealer
(water jacket)
65 ft-lbs.
Rocker Studs (screw-in) Engine Oil 50 ft-lbs. Oil Pump Engine Oil 65 ft-lbs. Oil Pan Engine Oil 12 ft-lbs. Cam Sprocket (upper gear) Thread Locker 20 ft-lbs. Timing Cover Engine Oil 6 ft-lbs. Intake Manifold
(Cast Iron Heads)
Non- Hardening Sealer 30 ft-lbs. Valve Cover Engine Oil 3 ft-lbs. Exhaust Manifold Anti-Seize Lubricant 25 ft-lbs. Spark Plugs No Lube or Sealer 20 ft-lbs. Flexplate (Automatic)
Flywheel (Clutch)
Thread Locker 60 ft-lbs. Clutch Pressure Plate Thread Locker 35 ft-lbs. Centerbolt
(Harmonic Damper)
Engine Oil 60 ft-lbs. Bellhousing
(Transmission to Block)
Engine Oil 25 ft-lbs. Head Bolt Tightening Sequence
sbchvy_head_seq.gif
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Rod and main bolt torque specs

rods bearings for the 4.2 engine is.18 ft lbs +110 degrees. main bearings 18 ft lbs +180 degrees. the 5.3 engine rod bearings torque is.15 ft lbs +85 degrees.main bearings is inner bolts 1st pass 15 ft lbs .final pass is 80 degrees.outer bolts 1st pass is15 ft lbs .final pass is additional 51 degrees.the m8 bolts 18 ft lbs..the 6.0 engine rod bearings torque is 15 ft lbs plus 85 degrees.the main bearings torque is inner bolt 1st pass 15 ft lbs .final pass plus 80 degrees. outer bolts .1st pass 15 ft lbs final pass plus 51 degrees.m8 bolts 18 ft lbs.
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Need torque specs

Torque sequence:
Step 1: Torque 29 to 34 Ft/Lbs
Step 2: Torque an additional 90 to 120 degrees
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