Ls1 how to torque specs

Head torque specs. Thread Tools. I looked up the torque specs on ls1howto and i was just wondering if anyone knew the torque specs for the last few passes instead of turning the bolt 90 degrees if there are any actual ft lb numbers? I would just feel more comfortable with a number i could torque too, ls1 how to torque specs.

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Ls1 how to torque specs

JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser. Below in this guide are the torque specs of LS based engines. These are the stock bolt torque specs, if you are running ARP bolts then refer to the instructions that came with the bolts for their torque specs. The column to the right on the guide shows a "degree" section, this means the bolts that are being used in that application are Torque To Yield TTY. TTY bolts are one time use only becuase they stretch after they have been torqued. These bolts allow more clamping force when two metals are expanding and contracting, the bolt will move with it instead of fighting against and potentinally breaking. What this means to you? This means this guide is a one stop shop to give you common questions on the torque specs of these bolts. No more just sending her home with two ugga ugga's. Be smart. These engines are making a ton of horsepower on stock bottom ends, but its the small things that will allow them to keep being efficent and reliable for you. Please refer to the guide below for the torque specs!

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Ls1 how to torque specs

The cylinder head gasket is one of the most over-engineered and stressed components in an internal combustion engine. The LS head bolt torque is pretty complicated. First of all, the head bolts for all LS engines are TTY torque to yield which means they cannot be reused once they are tightened to the correct torque specs. Such bolts stretch out too much after the initial tightening that they become too long and fragile to reach such high torque again and will most likely snap. Next, all LS cylinder heads have a tightening sequence which is just as important as bolt torque. Furthermore, multiple passes mean you need to tighten the correct bolts in the right sequence to a specific torque, then repeat the process again with a different torque as many times as there are passes. Now, the LS head torque specs ft lbs are easy to understand, but the LS cylinder head bolt torque is also expressed in degrees for the second and third passes. But to do that precisely, you need a degree torque wrench or a degree dial for a standard wrench. Here we will draw out the LS head bolt torque pattern with numbers.

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For a better experience, please enable JavaScript in your browser before proceeding. TTY bolts are one time use only becuase they stretch after they have been torqued. Remove This Item Compare. ARPs torque figures depend on you using it. Drewie Active Member. All times are GMT If using aftermarket head bolts or studs, refer to the installation intsructions and tightening specifications of the manufacturer. Originally Posted by mannyman I wouldn't, they aren't designed for it and the torque specs are factoring that you won't be using such. My Wish List. Thread Tools Show Printable Version. First stage: Using a torque wrench, tighten the M11 bolts numbered 1 through 10 in sequence to 22 ft lbs. Only to do 3 passes. What this means to you?

We review and look at LS1 tuning and highlight the ultimate mods that work. GM LS1 make awesome project cars and with the right modified upgrades like a remap, turbo upgrades and camshafts you will noticeably increase your driving opportunities.

Forums New posts Search forums. It may not display this or other websites correctly. Projected horsepower. Log in Register. Find More Posts by wildcamaro. Search titles only. Last Added Items. I know the order the bolts have to be done. I bought new ones. These engines are making a ton of horsepower on stock bottom ends, but its the small things that will allow them to keep being efficent and reliable for you. View iTrader Profile. What this means to you? Search Advanced search…. It stays set to 30Nm or 22 lb ft just use some kind or paint or similar to mark the bolts so you know how much to turn. Add to Cart Add to Cart.