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Hedman Elite hedders - bolt torque specs

Need torque specs for installation of Hedman Elite Hedders to Chevy cast iron heads

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: Engine Bolt Torques- 2005 Chevy Impala/3400 Engine

Head Bolts
Step one 37 ft lbs then tignten 120 degrees more

Rocker arms
Step one 11 ft lbs then tighten 90 degresss more

Upper intake
89 inch lbs
Lower intake
132 inch lbs

Posted on Dec 02, 2008

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chuck943
  • 783 Answers

SOURCE: Head bolt torque specs needed for 96 tbird 3.8

Head bolts are torque to yeild so you MUST use new bolts.
Tighten cylinder head retaining bolts in numerical sequence in three steps as follows:

  1. 20 Nm (15 lb-ft).
  1. 40 Nm (30 lb-ft).
  1. 50 Nm (37 lb-ft)
Loosen retaining bolts one at a time two to three revolutions and retighten as follows:

Long bolts:
  • Tighten to 40-50 Nm (30-37 lb-ft).
  • Rotate an additional 175-185 degrees.
  • Go to next bolt in sequence.
Short Bolts:
  • Tighten to 20-30 Nm (15-22 lb-ft).
  • Rotate an additional 175-185 degrees.
  • Go to next bolt in sequence.
Here is a pic of the sequence
http://i253.photobucket.com/albums/hh43/chuck943/Headboltsequence38L.gif

Posted on Mar 19, 2009

inspectmycar
  • 233 Answers

SOURCE: 94 mazda B3000 3.0L cylinder head torque specs

Step 1 torque to 59 ft pounds
2. Loosen one full turn
3. 37 ft pounds
4. 68 ft pounds

Use torque sequence below
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Posted on Sep 17, 2009

  • 12 Answers

SOURCE: head bolt torque specs for 200 honda accord 3.0

its a three step process 1st 29ft/lbs 2nd 51ft/lbs 3rd 72.3ft/lbs

Posted on Apr 25, 2010

  • 3640 Answers

SOURCE: i need the engine torque specs for 99 chevy malibu

99 chevy malibu v6 3.1 engine, head bolt torque is-- 98 through 2001 is step1- 37 foot lbs, step 2- rotate an additional 90 degrees (1/4 turn). the rocker arm bolts are 168-in. lbs.

Posted on Sep 07, 2010

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1 Answer

What are the spark plug torque Specs on a 95 Honda Civic LX 1.5 liter.


Torque Chart - E3 Spark Plugs

e3sparkplugs.com/torque-chart/
The table below lists the torquing specifications for most spark plugs being installed in either cast iron or aluminum cylinder heads. Torque values assume clean, dry threads.

Tech Specs - Spark Plug Cross Reference, Torque ... - Autolite


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Looking for the torque specs for a 83 ford F 700 370 V8 rear main cap


v8_15426378.gifCylinder NumberingDistributor Rotationford_cyln_1234.gifv8_dist_ro_ccw.gifRotor Under Cap Spins:
Counter
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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 PartsLube or SealerTorque to:Main CapsEngine Oil105 ft-lbs.Warning!!! If you are using ARP bolts, you MUST use
their specs. Click Here!Connecting Rod Bolts
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(Cast Iron Heads)
Non- Hardening Sealer30 ft-lbs.
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Hello there
the tourque specs are as follows
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Need to know how much torque to tighten head bolts and connectingrods


If you are repairing the engine to this level, a bottom or top rebuild, you should already have a chiltons. If not, what are you doing?! These specifications along with many necessary others should be in your repair manual unless you are just gathering this information for fun. Sorry about the lecture, but if you don't have torque specs for this, what else do you not have. Not only do you need the torque specs but each head bold needs to be torqued in a certain sequence as well. Head bolts are torqued in specific order gradually bringing the cast iron head to specification over three torque sessions.

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2 Answers

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
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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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1 Answer

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1984 chevy s-10


With an '84, it's likely that you can make this conversion, providing it is within your state inspection allowable mods, otherwise you can't. Most header manufacturers make a complete system front to back...follow their advertized pipe diameters if you want to make your own. When adding headers, don't expect a huge performance or mileage gain... This can be obtained by careful research and matching a total system including carb/FI, manifold and camshaft changes. In "fine tuning" and proper matching of these items, you can get the best performance possible. Aside from that, a normally aspirated smallblock chevy will usually respond best to a 1 7/8" header tube diameter W@ith a 3" or slightly larger collector, unless you are using a really radical cam and huge carb & intake.
Good luck with your project!!!

Apr 20, 2009 | 1984 Chevrolet S-10

2 Answers

Chevy hedders


Headers are a tubular fabricated replacement to your cast iron exhaust manifolds.

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