The aftermarket is strong, crate engines are available, and used motors are often cheaply sourced through junkyards. If you upgrade and depending on the injectors you run, you may need a fuel injector adapter harness. Some of the most cost-effective and powerful heads available for 5.3L, 4.8L, and even larger 6.0L LS engines are GM's 706 Vortec heads. This further improves airflow and power output from your engine without compromising efficiency or torque production levels. This process can be time-consuming and costly if not done correctly, so its important that you understand all of the potential pitfalls before attempting this swap. Hi Rick. Still can drive daily. This gave it greater durability, allowing it to withstand higher levels of torque and providing improved cooling efficiency when compared with its successors. 799 heads on 5.3 engines are a perfect fit. The 799 Cylinder Head is made from lightweight aluminum that helps reduce weight while still providing superior strength. If it's not done correctly, it can decrease performance. The intake is the factory Gen IV truck manifold and will be run using a stock computer and HP Tuner software. However, when it comes to performance, both cylinder heads are interchangeable and will provide the same power output. The 243-cylinder head is made from lightweight aluminum, which helps reduce overall weight without sacrificing power or performance. We recommend a dedicated truck cam. For example, should you opt for theChevy 799 heads, or are the LS 243 cylinder heads better? Daily driver with a above average cam. 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. . Looking at the BTR Stage 3 truck cam. And for $90 why not. This means that it has plenty of power to tackle any job you can throw at it, whether youre commuting on the highway or taking your truck off-roading for some fun in the mud. Some trimming of the intake and alternator bracket may be required. The 5.3L engine is reliable and incredibly versatile, making it a great choice for anyone looking for a powerful yet economical engine option in their vehicle. Call us today. These 799 heads are the latest model and are made using the semi-permanent mold method. If you are looking for a LS-series engine to build, the Vortec-series 5.3L is arguably the best choice for the dollar. Truck engine bays make fitting turbos easy. The power output can swing up to around 3 4 percent, delivering about 25 horsepower (hp). Many ported 799 heads are made from aluminum, which is a good choice because it's both solid and lightweight. The 209cc intake ports flowed as expected, but the 74cc exhaust ports were not quite up to snuff. The 799 heads cc are smaller compared to its counterparts because of its smaller combustion chamber. Which one do you think would be better and what unexpected changes are needed for both. The question now is where that limit occurs. All rights reserved. Check out the graphs for a full rundown, but the big surprise was that the amazing power of the legendary 799 (243) heads never materialized. Depending on how much power you intend to make, upgrading to largerfuel injectorsmay be needed. It is vital to note that combustion chamber size plays a significant role in either increasing or reducing the compression ratio. I have a 2013 Chevy Silverado 1500. Maybe at elevated power outputs and/or boost levels where maximum flow is needed the other heads might begin to shine, but just look at the dyno results to see how well GM designed the 706 heads to work on a 5.3L (even a modified one). Manufacturer: Chevrolet. The additional horsepower provided will allow drivers to experience an improvement in acceleration and top speeds while also having more confidence when tackling tough terrain or hauling heavy loads.
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