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top end torque specs?

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Old Nov 23, 2006 | 10:23 PM
  #1  
chevrunner21's Avatar
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From: south new jersey
Car: 1992 trans am
Engine: 305 tpi
top end torque specs?

i need the torque specs for sbc heads and the tpi intake set up
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Old Nov 24, 2006 | 12:22 AM
  #2  
3.8TransAM's Avatar
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Joined: Feb 2000
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From: Schererville , IN
Car: 91 GTA, 91 Formula, 89 TTA
Engine: all 225+ RWHP
Transmission: all OD
Axle/Gears: Always the good ones
I forget the head specs.

there is an order as well as a torque spec in at least 3 stages. I also like to let sit overnite and back all bolts off and retorque them in order.

All intake bolts u can set at 35pounds in 3 stages, again there is an order from center out to follow.

18 ft lbs will do for all runnerplenum/tb bolts.

later
Jeremy
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Old Nov 24, 2006 | 07:42 AM
  #3  
chevrunner21's Avatar
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Joined: Jul 2005
Posts: 84
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From: south new jersey
Car: 1992 trans am
Engine: 305 tpi
thanks and how do you set torque at 3 stages?
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Old Nov 24, 2006 | 08:27 AM
  #4  
Damon's Avatar
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From: Philly, PA
Head bolts are 65 ft/lbs for a small block. You go up in 3-4 steps: 35, 45, 55, 65 is what I do. If you use a non-hardening sealer on the bolts you can then let it sit overnight, break them loose one at a time and take them straight back to 65 again. All composite head gaskets "settle" to some extent, regardless of what they say on the package, so I always do a re-torque the next day. You'd be surprised how much further they turn down on the re-torque- almost a full flat on the bolt head sometimes.

Intake bolts are much less torque- I'm going to guess 30, but I've never used a torque wrench on anything but main caps, rods and head bolts. Everything else I do by feel.
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