Ls1 how to torque specs

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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. View Public Profile. View iTrader Profile. First stage: Using a torque wrench, tighten the M11 bolts numbered 1 through 10 in sequence to 22 ft lbs.

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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The LS1 is the original Gen. The LS1 engine specs and information here is for the stock LS1 engine. These motors are capable of making a lot of horsepower, and respond well to upgrades like turbos, superchargers, high-flow cylinder heads, intake systems, cams, and nitrous oxide. The aftermarket is strong, crate engines are available, and used motors are often cheaply sourced through junkyards. Summit Racing has created a series of comprehensive guides for each engine in the LS family, so engine builders and tuners can have a handy reference for their projects. The first engine on the list is the first GM LS—the 5. Starting in ls1 5. Hi, sometimes the 8 looks like a 3 I thought the same thing and cleaned it off again and it was an 8 not a 3.

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.

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ARP made a very good white paper testing their product comparing it to other lubricants and I seen a demonstration on HorsePower TV so they pretty much convinced me their product is far better than the others. Email this Page. For the best experience on our site, be sure to turn on Javascript in your browser. Please refer to the guide below for the torque specs! Thanks for that. No more just sending her home with two ugga ugga's. Feel free to Contact Us if you have any questions! The store will not work correctly in the case when cookies are disabled. There is no angle to add to these bolts. TTY bolts are one time use only becuase they stretch after they have been torqued. I know the order the bolts have to be done.

While the LS6 emerged from the factory with more power than the LS1, both engines can make the same power with common upgrades. The throttle body diameters are identical. Aftermarket intakes can produce strong gains with a 90mm LS2 throttle body.

You should upgrade or use an alternative browser. Feel free to Contact Us if you have any questions! Copied these from my workshop manual, may help understand what they are on about. The following errors occurred with your submission. Received 1 Like on 1 Post. ARP made a very good white paper testing their product comparing it to other lubricants and I seen a demonstration on HorsePower TV so they pretty much convinced me their product is far better than the others. New Header does not fit- driver side only. Welcome to Just Commodores, a site specifically designed for all people who share the same passion as yourself. However, the above tightening sequence should always be used. Search titles only. Last edited: Aug 1, I'm not using the originals.