Torque specs and bolt sequence 250 Inline 6 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Fawnzie · 09-11-2017, 10:55 PM

Does anyone have the torque specs and the proper sequence of torquing the headbolts down? I cant find anything online. When I do there's 50 different answers. HELP!!!

**TJ's Chevy** · 09-11-2017, 11:40 PM

Quote:

Originally Posted by Fawnzie

Does anyone have the torque specs and the proper sequence of torquing the headbolts down? I cant find anything online. When I do there's 50 different answers. HELP!!!

Here's the sequence...it's the second one in the picture.
http://www.autozone.com/repairguides...00c152800849bb

Specs would be 90 foot pounds for all except the front two...those are at 80 so the front of the block doesn't crack.

Fawnzie · 09-12-2017, 01:22 PM

Cool! Thanks for the info!

GRX · 09-12-2017, 04:30 PM

I usually go 95 ft-lbs on all but the front left (driver side) bolt, which is 85 ft-lbs. 90/80 is OK too. Follow the sequence shown in that image torquing in stages. All to 40 first, then 70, then to final. Re check torque after a few heat cycles.

Enjoy your 250 and welcome to the forums!

Fawnzie · 09-12-2017, 04:49 PM

Thank you. Been on for years, just changed my name

09-11-2017, 10:55 PM	#1
Fawnzie Registered User Join Date: Sep 2017 Location: Los Angeles, CA Posts: 57	Torque specs and bolt sequence 250 Inline 6 Does anyone have the torque specs and the proper sequence of torquing the headbolts down? I cant find anything online. When I do there's 50 different answers. HELP!!!

09-12-2017, 01:22 PM	#3
Fawnzie Registered User Join Date: Sep 2017 Location: Los Angeles, CA Posts: 57	Re: Torque specs and bolt sequence 250 Inline 6 Cool! Thanks for the info!

09-12-2017, 04:30 PM	#4
GRX Registered User Join Date: Jul 2010 Location: MD Posts: 1,937	Re: Torque specs and bolt sequence 250 Inline 6 I usually go 95 ft-lbs on all but the front left (driver side) bolt, which is 85 ft-lbs. 90/80 is OK too. Follow the sequence shown in that image torquing in stages. All to 40 first, then 70, then to final. Re check torque after a few heat cycles. Enjoy your 250 and welcome to the forums! __________________ 1969 c-10 Step Side Long Bed. I-6 250cid = = 1969 Pontiac GTO hard top. 400, 4-speed.

09-12-2017, 04:49 PM	#5
Fawnzie Registered User Join Date: Sep 2017 Location: Los Angeles, CA Posts: 57	Re: Torque specs and bolt sequence 250 Inline 6 Thank you. Been on for years, just changed my name



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