250 Chevy engine torque specs... - Chevelle Tech
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Old Oct 1st, 08, 12:52 PM
superhatch superhatch is offline
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Default 250 Chevy engine torque specs...

Does anyone have the torque specs for the chevy 230/250 series engine? I cannot find the torque specs anywhere and I need them to assemble the engine. Does anyone know where I could find them online? I'm talking about the torque specs for the crankshaft, connecting rods, cylinder head torque sequence and etc. Any help is greatly appreciated!!
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Old Oct 1st, 08, 1:14 PM
animal69 animal69 is offline
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Default Re: 250 Chevy engine torque specs...

I put your title into google and this was the first responce: "The following is from an early 70's Motor's repair manual for 250 Chevy 6;headbolts-95 ft lbs for the head bolts.Some say the left front headbolt only should be 85.Rods 35,mains 65,flywheel 60,intake 30."
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Old Oct 1st, 08, 3:03 PM
superhatch superhatch is offline
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Default Re: 250 Chevy engine torque specs...

That gets me into the ballpark, but I don't know in what sequence to tighten the headbolts in.
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-1968 Chevrolet Chevelle 4.2L 6 Cyl, UK Specs, Right Hand Drive, bored, stroked, and a lot more goodies
-1991 Nissan Sunny GS, 1.6L 4 Cyl UK Specs, Right Hand Drive (the daily beater)
-2009 Ford Flex SEL (the wife's car)

http://flickr.com/photos/jessicaclar...7600813184645/
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Old Oct 1st, 08, 3:35 PM
Chevelle_Nut Chevelle_Nut is offline
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Default Re: 250 Chevy engine torque specs...

95 Foot pounds (Final torque)

Note:
Torque sequence front ------------------
of | 14 10 6 2 3 7 11 |
engine | 13 9 5 1 4 8 12 |
------------------
Final torque must be reached in 3 equal steps
Recheck final torque in sequence

I coppied this from www.autozone.com . They have repair specs online.
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Old Oct 1st, 08, 4:07 PM
Mike Mike is offline
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Default Re: 250 Chevy engine torque specs...

Start with Repair Info then Specifications then Year ,Make ,Model ,Engine and Specifications (Yeah ,again):
http://www.autozone.com/home.htm
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