GM’s LS series of small-block engines is proof that continual refinement is the root of perfection. The future is now! This system utilized vacuum-actuated outlet valves that reduced engine noise under periods of low-load. Since that day there have been many engines that gearheads have revered for their power, prowess, and ease of modification. First up is changing the cam timing. … With a few changes to bore, stroke, etc and the addition of a supercharger, the LS3 happily pumps out 630 bhp. Upon the LS3’s release in 2007, this trend toward continual technological advancement was clearly evident. It does however have a slightly larger displacement increased … Based on the Generation III design, Generation IV was designed with displacement on demandin mind, a technology that allows every other cylinder in the firing order to be deactivated. Don’t forget to upgrade your timing gear and cam sprocket. All numbers are quoted for the crate Gen IV LS3 engines that are available on that site. And on a lazy Saturday afternoon God said, “let there be cars.” Most early men were happy, but there was that one guy. In short, the best way to improve your LS3 crate engine is to get your hands on some genuine Chevrolet performance parts and wrench your motor to the next level. The LS3 family is very similar to the LS1. Required fields are marked *, By using this form you agree with the storage and handling of your data by this website. If you prefer having an automatic transmission, make sure you have a vehicle with a 2,500-rpm-stall torque converter. The crate LS3 engine has a mild timing of 0.551/0.524-inch lift, 204/211-degree duration, 117-degree lobe-separation angle(LSA). The LS3 also employed the use of Z06-spec, high-flow, 47 lb fuel injectors, and a revised hydraulic roller camshaft (P/N 12603844), which provided 5-percent greater lift than that of its LS2 predecessor. Bore x Stroke 4.065 x 3.622 in or 103.25 x 92 mm + 16 more images Get the best deals for ls3 engines at eBay.com. Of course, you want to make sure that the heads you buy have a 2.165/1.590 valve package, a multi-angle competition valve job, and a valvespring package that can support the high-performance cam up to 7,000 rpm. Using a set of ported factory heads means that you do not have to address the pushrod length. A crate LS3 can set you back about $8,000, but it comes with a satisfying 430 bhp and 424 lb-ft of torque. As an added bonus, replacement part numbers are listed on the site as well. Camshaft: hydraulic roller This site uses Akismet to reduce spam. Reluctor Wheel: 58X. The Edelbrock 416 LS3 crate engine is also an excellent base for their E-Force supercharged engine that makes 720 horsepower, and is ideal for boosted applications as well. With a bore of 4.065 inches, a stroke of 3.622 and L92 style cylinder heads, This one produces 430 horsepower and 424 lb.-ft. Fortunately for hotrod enthusiasts, the L92 cylinder heads have enormous flow potential, so why not install a high-performance cam. Output: 430 hp at 5900 rpm and 425 lb-ft of torque at 4600 rpm. In a bid to sustain such endeavors and to ride the manufacturer’s recent wave of successive performance gains, the development of this newly revised small-block was fast-tracked. The biggest problem you will have is keeping your ride street legal. A dual-mode exhaust package was also offered for C6 Corvettes powered by the LS3. Upon the LS2’s release, much was slated in the way of subsequent Corvette development, and continual revitalization of the LS engine platform was seen as the only viable means of facilitating such efforts. The LS3 block is very similar to the LS2. That is to say from block to head. A specialized, sound dampening foam was placed in the void between the exterior surface of the intake, and the interior wall of the intake’s outermost shell. Shop LS3 Chevy LS V8 Crate Engines and get Free Shipping on orders over $99 at Speedway Motors, the Racing and Rodding Specialists. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Rocker Arms: investment-cast, roller trunnion Start typing to see results or hit ESC to close. If you go so far as to swap a few pulleys and use 100-octane fuel, you may see 768 hp at 6,500 rpm and 667 lb-ft at 5,400 rpm. Engines LS,LSA, LS3,L92,LT1,LT4,LT5,LS7,LS6,LS1,LS2,Coyote $1,950 pic hide this posting restore restore this posting. On top of that, here are two mods for the LS3 engine that will take some skill, but will add more than 100 hp to your crate LS3. Those numbers are pretty impressive from the crate engine, but the LS3 offers durability and extreme power potential, creating a gearheads dream. The Gen-IV LS3 engine has a lot of potential in the right hands. Gen. 3 engines could be found in cars up until 2005 and most trucks as late as 2007 (LM7, L59, L33, LQ4, LQ9) and were 24X. Classics like the big block Chevy 427, small block Chevy 350, Chrysler 426 Hemi, and the General Motors (GM) LS1 come to mind. The build started with new Chevrolet Performance LS3 block. Much of the data utilized by GM in the development of the LS3 was derived from research conducted in conjunction with the manufacturer’s racing program. This website uses cookies to ensure you get the best experience on our website. favorite this post Feb 8 BFG Rival S … A unit with 0.641/0.615-inch lift, 231/236-degree duration, 111-degree LSA should get enough output to satisfy most guys. Would you believe me if I told you that a 5.7L LS1 would fit into a … We already listed the thermostat change to keep the engine cooler. First seen under the hood of the 2008 model year Corvette, … The new LS3 crate engine was rated and verified by Blue Print Engines (BPE) at 530 hp and 495 lb-ft, so … Shameless, yes. I founded GearHeads.org and then built and ran AutoWise.com until selling it to Lola Digital Media in 2020. One daunting mod that can get your LS3 engine closer to 800 hp is adding a supercharger. $0. Exhaust is one of the biggest variables in the output of the LS3. in. Add high performance parts like a new intake manifold, a refined oil pan, upgrade your throttle body tech, and if you want to elevate your engine to the next level, install an LS3 supercharger kit. LS3 Chevy LS V8 Crate Engines … The LS3 announced the era of unprecedented performance for the Chevrolet Corvette. That’s less than half the price for essentially the same engine. All of these changes push the LS3 to 6.2L compared to the 5.7L of the LS1. Atop the LS3’s cylinder heads resided a high-flow intake manifold, which featured fewer points of restriction, and enabled a more direct route of passage for incoming air. Dyno Testing a stock LS3 crate engine. With its increased displacement of 376 cubic-inches, the LS3’s cylinder bores measured 4.065”, with a 3.622” stroke. The lightweight aluminum-alloy composition of the LS3’s pistons facilitated greater efficiency throughout the engine’s entire RPM range and enhanced throttle responsiveness.
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