ly6 compression test|2008 ly6 6.0 hp : service Thanks in advance for your help and patience! So, considering a 2008 40th anniversary X Star with the 6.0L motor. The dealer finally found the trade-in inspection report . WEBprivity. [ priv-i-tee ] show ipa. noun, plural priv·i·ties. private or secret knowledge. participation in the knowledge of something private or secret, especially as implying .
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Thanks in advance for your help and patience! So, considering a 2008 40th anniversary X Star with the 6.0L motor. The dealer finally found the trade-in inspection report .
About a week ago I did a compression test and cylinder 8 read at 110psi while the rest were just under 150. I added a drop of oil and it went to 150psi. I just did another . To see if we could manage the trifecta, we set up a test with our 6.0L LY6. For those unfamiliar with the LY6, the 2008 LS motor featured a 4.0-inch bore, 3.622-inch stroke, . I had exactly the same thing happen at 183000km on my 03, no compression on cyl 2, performed a cyl leakage test, found air escaping into the base. Pulled the engine and .
The 2007-up LY6 6.0L featured the Gen IV upgrades to the block and connecting rods, along with slightly higher compression (9.6:1 versus 9.4:1). What really sealed the deal on the LY6 was the.
You also get the sturdy 4 th-gen full-floating connecting rods and a boost-friendly 9.6:1 compression ratio. Most 6.0L truck engines came with cathedral-port heads. The LY6 (along with the LC8, L76 and L96) came with . My setup is ly6 stock rods & crank, Wiseco pistons, l92 heads ported and polished (shaved .025) compression ratio is 11.3:1 custom grind cam by Brian tooley, Vic jr intake, . From cylinder heads to the camshaft, here's a complete rundown of all the vital engine specs you need for the 6.0L LY6 LS engine.
With domed pistons and mid-range cam, compression around 11:1 range is possible on pump gas. The chart below lists standard specs compared to common performance Rotating . As others have stated, any adjacent cylinders that share low compression could be a head gasket problem etc. Still the cranking compression test is just one diagnostic test. A Cylinder Leak down test is .
While many iron 6.0L engines had cathedral port heads, the LY6 and L96 came with high performance rectangle port heads. With upgraded internals, they can handle over 1,000 hp. . compression around 11:1 range is possible on pump gas. The chart below lists standard specs compared to common performance Rotating Assemblies. Gen. 4 Standard Spec.
LY6’s pistons have a dished design with valve reliefs, whereas LQ9 has flat-top pistons, contributing to its great compression ratio. Moreover, LY6 has variable valve timing, while its older counterpart lacks it. The variable valve timing . The L96 engine is a 6.0L Gen. 4 small block engine used in GM trucks and SUVs from 2010 to 2017. It replaced the LY6 and added Flex Fuel capability. For marketing purposes, it was also known as the Vortec 6000. The engine specs and information listed here is for a . Compression Test Service Costs. When having a compression test done by a repair shop the costs will vary depending on how many cylinders your car's engine has and how difficult the sparkplugs are to remove. Most shops will charge about .00 for a 4 cylinder and about 0.00 (US) for V8 engine's. If you are doing the job yourself with the . Keep in mind that the LY6 numbers were measured while the engine was running on 87 octane fuel. One can expect higher numbers with higher quality gas. Despite being a torquey truck engine, the LY6 redlines at 6,000 RPM which is even more impressive when you factor in that this is a 6.0-liter pushrod V8. The compression ratio, meanwhile, is 9.6:1.
About a week ago I did a compression test and cylinder 8 read at 110psi while the rest were just under 150. . I just did the lifters on my 08 LY6, cylinder 8 intake had a flat spotted roller. It was making an awful squeaking noise at idle. I'm going to rebuild the bottom end sometime after the first of the year. Good luck.
2008 ly6 engine specs
This puts No. 7 16 percent below the high, which was No. 4. This was a dry test with the engine hot after running it on the lake. I tested four cylinders today at ambient temp and found similar relative results between cylinders compared to the warm/hot test with the pressures running about 5 psi below the test with the engine warm/hot.
I had exactly the same thing happen at 183000km on my 03, no compression on cyl 2, performed a cyl leakage test, found air escaping into the base. Pulled the engine and disassembled, found injector O ring failed dumping fuel into the cylinder resulting in a melted piston and siezed rings.How Much Compression Should a 5.3 Have: 5.3L Compression Test. Jermaine Harris 3 years ago. Facebook; Prev Article Next Article . Table of Contents. Understanding the 4.3L V6 Engine; Benefits of Adding a Turbo Kit; Choosing the Right Turbo Kit for the Chevy 4.3; Installation Tips and Considerations; The main differences between the LY6 and LQ9 engines are: compression ratio, cylinder heads, and intake manifold design. Both engines have a 6.0L displacement, but LYS has a higher compression ratio and a different cylinder head design. These differences give the LY6 an edge in terms of performance. Overview of the LY6 and LQ9 LY6 Engine
I compared a set of stock 799/243 cathedral-port heads vs the 823 LY6 rec-port heads on an LY6 short lbock. The motor was equipped with a healthy Comp cam an.
The Gen IV, 6.0L chosen for this test was a 2008 LY6. This particular version featured a number of desirable features, including rec-port 823 (LS3-style) heads, a free-flowing intake and variable .A compression test is simple to learn and only requires a few basic tools. From a mechanical perspective, you will need to know how to properly remove the spark plugs on the vehicle or equipment you are testing and properly disable the ignition system and fuel system, the latter if the vehicle is fuel injected. For carbureted engines, you can choose to disable the fuel supply . LY6. When it came time to update the venerable LQ4 in '07, GM bolted on a set of L92 heads and increased the compression to create the LY6. These simple tweaks bumped output to 352 hp. The . Compression Ratio of Various Combos LQ4: 9.41:1 - milled .020" = 9.74:1 LQ4 with LS6 heads = 10.14:1 - milled .020" = 10.53:1 . 10.38:1 - milled .020" = 10.80:1 LY6 9.6:1 - milled .020" = 9.95:1 L92 10.5:1 - milled .020" 10.91:1 each .006" milled = 1cc combustion chamber space is the often quoted equation. Various Cylinder Head Combustion .
The head gasket has to seal, oil, coolant, and compression from the cylinders at the same time. This makes it the most over stressed gasket in an engine, and therefore one of the most likely to fail. How To Test For A, . The power secrets are the rectangular-port L92 cylinder heads and the 10.7:1 compression. The downside is the cost of entry. . The LY6 was sourced from a crashed 2010 Silverado 2500 series truck .LY6. The LY6 was introduced in 2007. It replaced the LQ4 and LQ9 as the Vortec 6000. Along with the LY2, LY5, and LMG, it was one of the first 4th generation, LS truck engines. The LY6 used Variable Valve Timing (VVT). This helped it make more Torque and Horsepower than the previous 6.0L engines. It was available in GM pickups until 2010.
LS2 vs. LM7. The odd thing about the LS2 test was that this was the only factory cam with which we experienced valve float. Unlike all the other cams, the LS2 did not rev cleanly to 6,500 rpm, so .This LY6 crate engine makes max power and torque with a hydraulic cam which is very street able but also gives you the sound you are looking for!! . 550bhp @ 6400 rpm Peak Torque: 540lb/ft @ 4800 rpm Compression Ratio: 11:1 Operating Range: 2300 – 6300rpm Required Fuel: 91+ Octane Pump Gasoline. LY6 408ci 550hp Complete Engine quantity . Compression: 10:1; Bore & Stroke: 3.900” x 3.622 . LY6. LY6. Another cast iron truck block, the LY6 is the replacement for the LQ4. Sharing the same bore and stroke as the LQ4, the LY6 added variable valve timing which makes the powerband a little broader. These engines came from the factory with the high flowing L92 heads and increased .In a compression test, the modulus of elasticity can be calculated from the initial, linear portion of the stress-strain curve where the material behaves elastically. Ductility: Ductility is a measure of a material’s ability to deform without breaking or cracking. The extent of deformation at the point of failure during a compression test can .
Essentially, the LY6 is the successor to the first generation LQ4. The LY6 Vortec 6000 uses an iron block with the same aluminum head as the L76/98. It uses almost an identical cam as the first generation LQ4, but this version has VVT. The throttle body is 87mm, and the pistons are dished with valve reliefs. Compression is 9.6:1. Take a look at this 6.0L Iron LS Stroker build and dyno test. . These 4.03-inch diameter slugs feature a 1.105 compression height and came fully coated. See All 17 Photos. 06.what stock ls head makes the most power? which cam should i run in my 6.0l? what is the best stock 6.0l cam to use? stock 6.0l upgrades! are the 706/862 head. The 2007-up LY6 6.0L featured the Gen IV upgrades to the block and connecting rods, along with slightly higher compression (9.6:1 vs. 9.4:1). What really sealed the deal on the LY6 was the use of .
2008 ly6 6.0 hp
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ly6 compression test|2008 ly6 6.0 hp