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03-18-2011, 05:45 PM | #1 |
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Join Date: Apr 2010
Location: Sutton, WV
Posts: 340
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Torque specs for GM Vortec Heads
Does anyone know what the torque specs for GM Vortec Heads are? I bought a rebuit 355 with new vortec heads on it. The PO can't remember if he torqued the heads. I have read all different things on the net. Thanks. Wayne
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03-18-2011, 09:32 PM | #2 |
Senior Member
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
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Re: Torque specs for GM Vortec Heads
GM service manual.."Torque angle method"
First Pass Torque all bolts to 22 ft. lbs. Torque Short Bolts an additional 55° Torque Medium Bolts an additional 65° Torque Long Bolts an additional 75° Easy "tried & true" method 1st pass 25 ft. lbs. 2nd pass 45 ft. lbs. 3rd pass 65 ft. lbs. |
03-19-2011, 06:23 AM | #3 |
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Join Date: Apr 2010
Location: Sutton, WV
Posts: 340
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Re: Torque specs for GM Vortec Heads
Thanks Clinebarger. I couldn't find any torque values without doing the so many degree afterwards.
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