5.3 Vortec Engine Specs
General Motors’ 5.3 Liter Vortec engine is based on the small block V8 platform. This platform was used to produce many LS series engines for performance cars such as Corvettes. However, the 5. 3 L Vortec engine is used in large SUVs and trucks. Source URL
These are the features of the 5.3 Vortec engine:
- 3L Gen IV V8 Small Block
- Oil monitor system. It monitors oil levels
- Variable valve timing (VVT)
- E85 capable E85 can be used with E85
- Electronic throttle control Electronic throttle control
- Cast aluminum cylinder head, Aluminum cylinder head
- Block material: Cast iron Cast iron
- Composite material is used to make the intake manifold.
- Longitudinal engine orientation Longitudinal engines orientation
- Extended life spark plug life extension spark plugs
- Regular unleaded and E85 Flex Fuel
- 5328cc- 325 ci displacement
- Hydraulic roller. Hydroulic roller
- Sequential fuel injector is used for fuel injection
- Maximum speed: 6000 rpmEngine maximum speed:
- 6:1 Compression Ratio Value
- Overhead valvesHeadset valves.
- 01 x 92mm Bore per Stroke
- Connecting rod made from Powder metal
- Camshaft made from hollow steel
- Crankshaft made from nodular cast iron
- Exhaust manifold made from nodular cast iron
What is the engine capacity of 5.3 Vortec engine?
This section will tell you all you need to know about the specifications and features of your 5.3 Vortec engine. Source URL
There are at least nine versions of the 5.3L Vortec. However, they can be broken down into the Generation III and Gen IV of the V8 small block series. The block design modifications that are made between Gen III-IV are the block design. These modifications allow for active fuel management, which essentially turns off the cylinders when not needed for power production. The engine can also be set to variable timing. Source URL
How much horsepower does a 5.3 Vortec engine have?
The original 5.3L Vortec LM7 produced 270 horsepower and 315 lb-ft torque. The Gen III engine design of VortEC’s 5.2 L VORTec was phased out. The L33, which was marketed as the high-output version, produced 310 horsepower and 335 lbft of torque. Source URL
When they first appeared in the salvage channel, we were skeptical about the direct injection (DI) 5.3L L83 mills. The 5.0L LM7 was a proven LS-swap machine for those on a tight budget. This meant that the DI L83 mill had some very capable LS-wap machines. The current top choice in performance is the Vortec and LS versions of the 5.1L LM. Although it can be argued that the position is due to price and availability, the actual performance is what really matters. Both the Gen III and Gen IV models offer impressive performance, especially when compared. Source URL
Models with 5.3 Vortec Engine
This comparison is for the 2016 Chevy Silverado’s 5.3L V8. Regular unleaded fuel produces 355 horsepower @ 5,600 rpm, and 383 lb-ft @ 4,100 rpm. The truck is available in LTZ trim and has the maximum towing package as well as 2WD. This is the first time we have tested the V8 that is mated with an 8-speed automatic transmission. This pairing is a new feature in the Silverado 2016 model year. It’s available in higher trim levels. Source URL
2019 Chevy Silverado 1500: 5.3L V8, 6-speed auto : 15/21/17 MPG 2019 Chevy silverado 1500 : 5.0L V6, 8-speed Auto : 17/23/19 MPG (Plus Dynamic Fuel Management – DFM). Source URL
Although the younger segment of our hobby might not be aware of it, the L83 designation is for the direct-injected, 5.3L, direct injection 5.7L power plant. It was used on the 1982 and 1984 Corvettes. There was no Corvette in 1983. Chevrolet’s cross-fire injection system featured a trick, cross-ram intake design that fed a pair single-hole throttle bodies. The L83 xfire, which was rated at 205 horsepower in 1984, was the predecessor to the L98 Tune-Port motors. The original, 205-hp L83 is not liked by most Chevrolet enthusiasts. However, the new gen-5 L83 might change that. It will never be able to surpass the status of other alpha-numeric legends such as the DZ302, L88, LS6, and LS6. Source URL
The truck’s stock V8 engine is a 5.3-liter V8. The stock power output is still 355 horsepower. GM has locked down the ECU/computer of the new truck, which prevents aftermarket companies from tuning the engine for more power. Source URL
It is also mated with an 8-speed automatic transmission. The small V8 can now be paired with the 8 speed. This is the first year that the V8 small engine can be combined with an auto transmission. This transmission and engine combination are available on higher trims and this truck is an LTZ. Source URL
What is the difference between 5.2 and 5.3 Vortec engine?
It is important to mention that the 5.3 Vortec engine is equipped to withstand specific workloads and functions properly. Source URL
What is the difference between a 4.8 and 5.3 Vortec?
Both the 4.8L and 5.3L were run under identical conditions. The 4.7L was first prepared for dyno use with an aftermarket electric water pump and a set of Hooker headers that feed Borla XR1 race mufflers. A manual Accufab throttle body was then installed to replace the drive-by wire version that was delivered from the wrecking yard. Source URL
General Motors produces the LMF engine for full-size vans and pickup trucks. The engine can carry 5.3 liters in a V8 configuration. It is part of the Vortec (Generation IV Small Block), which has been replaced by the EcoTec3 engine family. The LMF is currently used in GMC Savana and Chevrolet Express vans. The direct successor to the 5.7-liter V8 EcoTEC3 L83 is the new 5.8-liters V8 VortEC LMF. Source URL
Gen V engines offer greater efficiency, performance, and durability thanks to a combination of advanced technologies such as direct injection, Active Fuel Management (cylinder activation), and dual equal camshaft phasing (Variable Valve Timing), which supports an advanced combustion system.
- Electronic Power Steering: All Gen V engines have Electronic Power steering. They do not include a hydraulic power steering system in their accessory drive. This improves fuel efficiency and performance.
- Vacuum Pump: To improve braking performance, the 4.3L, 5.3, and 6.2L truck engines have a mechanical vacuum pump. It is an engine-driven pump.
- Air Induction Humidity Sensor: This feature ensures optimal combustion efficiency, regardless of the surrounding humidity.
- E-85 Capability: Both the 4.3L and 5.3-L truck engines can run on E85 gasoline, gasoline, or any combination of the two fuels.
- Coil-on-Plug Ignition: The Gen V’s individual coil-on plug ignition features advanced coils that are compact and mounted on the rocker covers. However, they are positioned differently to the Gen IV engine. Each spark plug has an individual coil that delivers maximum voltage and consistent spark density. There is no variation in spark density or variation between cylinders.
- Iridium-Tip Spark Plugs: The spark plugs have an iridium tip tip and an irium core in the conductor. This gives them higher resistance and optimal spark density over their useful life. The electrode design improves combustion efficiency.
What is the best engine for a 5.3 Vortec?
Silverado had the fastest quarter-mile and 0-100 km/h times, beating GMC by a tenth of seconds in both cases. GM’s large V8 engine has one problem: it is recommended that super unleaded be used, unlike the Ford’s and Ram’s engines. Silverado’s 5.3-litre V8 loses 65 horsepower (355 against 420 for the 6.2 litre unit), but it isn’t more efficient despite the cylinder-deactivation technology. The Silverado got the worst fuel economy on our drive. Source URL
How can I get more power out of my 5.3 Vortec?
You must upgrade your 5.3 Vortec to get maximum horsepower. It is not only important in one aspect, but you also need to spend a lot of time and money on it. It will not be able to keep the power steady for long, but it will do so for a reasonable price. You might be able get more power if you replace your block with a larger LSx block. Source URL
How many miles per gallon does a 5.3 Vortec get?
5.5.3-liter V-8 DFM VVT DI (L84) in 2019 Chevrolet Silverado GM claims a five-percent increase in city driving efficiency of about 1mpg from DFM. The total Silverado redesign for 2019 improved the 4WD version’s 5.3 liter V8 V8 from 17mpg to 18mpg. This results in savings of $100 per year in fuel costs. It will cost $650 more per year to fuel than an average vehicle, instead of $750 per year. Although this tech is more than enough, it is not segment recalibrating. Source URL
Depending on the engine’s age, the factory mile per gallon specifications for city and highway driving were between 13-17mpg for the city, and 16-22mpg highway. The older engines have a higher price, while the newer engines are lower. Transmission also plays a part, with 6-speed automatics performing better than 4-speeds. Source URL
How much HP can you get out of a 5.3 Vortec?
It all depends on how much money you are willing to spend on your 5.3 Vortec. You can get 1000 HP if you’re willing to change your turbo, intercooler, heads, cam, and forged cranks. If you don’t mind spending a lot, you can get 500 HP with just a few upgrades. Source URL
Turbo 5.3L-Stock vs. Modified This test would determine how much power we would see if we add boost to the equation. A single S480 turbo was used to run the 5.1L in stock trim. The turbocharged 5.2L produced 532 horsepower at 5,500 rpm and 555 lb-ft torque at 4,700 rpm. The modified combination was then modified with the same turbo system, without any changes to the waste gate setting. The result was a jump in power to 801 horsepower at 7,000 rpm, and 616 lbft torque for 5,600 rpm. Despite the same wastegate settings, the boost on the modified combination increased to 11.9 psi. The modifications were worth 269 hp. Source URL
Although the question was simple enough, finding the answer required four engine configurations. We would start with a stock 5.3L engine, which was actually close to stock. Then, we would run the test in naturally aspirated trim and then again with a single turbo system. We then replaced the camshaft, cam, intake manifold, and cylinder heads with aftermarket versions, and then ran the tests again with both naturally-aspirated and turbo systems. We were able to compare the power gains offered by the turbocharged and naturally-ascpirated versions. Source URL
What year did the 5.3 Vortec 5300 come out?
The Vortec 5300 small-block V8 GM engine was produced from 1999 to 2013. The 5.3L engine is based upon the LS platform, but it is not technically an LS engine. There were two generations of the engine: Gen III and Gen IV. The engine was used in the Silverado, Sierra, Suburban, Avalance, Yukon and Tahoe, as well as many other less popular Chevy and GMC vehicles. Source URL
How much does a used 5.3 Vortec engine cost?
- 5.3L and 4.8L Vortec engines can be purchased for as low as $300
- You can install and buy a carb and intake in your car for as low as $1300
- You can make 350 horsepower stock or nearly 450 horsepower with a cam swap
- You can easily make over 500hp when combined with a nitrous kit.
- A borescope can be used to distinguish between Vortec engines 4.8L and 5.3L.
- 5.3L engines will have slightly dished pistons
- Flat top pistons will be available for engines with 8L engines.
- These smaller Vortec engines are available in RWD GM trucks and SUVs starting in 1999.
What is the best cam for a 5.3 Vortec?
Best Cam for Vortec: COMP Cams 17001 (best value and best price) is the best performance cam for 5.3 Vortec. Source URL
Camshaft requires internal combustion engines to operate the intake and exhaust valves. It mechanically controls early electric motor speed controllers as well as the ignition system. This article will help you find the best cam for 5.3 Vortec. It explains the features, specifications, and benefits of the best 5.2 VortEC cam. Let’s now discuss the top 7 cams for 53Vortec and the Chevy 53 engine upgrades. Source URL
This High Energy Die Cast Aluminum Roller Rocker Arms is ideal for the Chevy V8 265-400. It is perfect for moderate race and street use. This die-cast is made of aluminum. This aluminum die- cast is stronger and lighter than the rocker arms’ stock body. The best cam for 5.3 Vortec improves horsepower and throttle response. Comp cams are ideal for street driving. This cam is the best for daily driving. Source URL
We used thousands of Camshafts to create genuine cams that provide accurate information. These 7 products were chosen by our experts as the best for 5.3 Vortec. Let’s find out the best performance and horsepower gain on Chevrolet’s 5.0 L VortEC engines. Source URL
This hydraulic roller cam is aggressive, but it is stable. It fits in the GM LS GEN III/IV and has a 3 bolt configuration. It can be tuned for better performance. It is faster off the seat than the original Xtreme Energy series and is considered to be the realiable cam for 5.3 Vortec. The cam is stable because it uses a performance valve spring and a rigid valvetrain. Source URL
Camshafts cannot be adjusted or adapted for 5.3 Vortec. Some tuners, however, are made for it. First, you need to know the vehicle and then search for the best-suited camshaft. Before you buy a camsh shaft, there are some things you should consider. Make sure you have all the information you need. Source
- Before you decide on camshaft’s brand or design, first determine what you want (rough idle or smooth idle) and the cam that suits your needs first. Next, ensure that the cam fits the truck.
- Make sure you have the budget to pay for replacement.
- You should understand the efficiency of the camshaft to determine how much you are willing to spend. Your cam can provide better performance and last longer. You and your truck will benefit from the rpm range, cam size, lift, duration, and lobe separation angles of your cam.
- Identify an easy-to-install product. It is important to choose a brand that supports you and offers advice to help you install and change.
- Make sure that your product is durable and high quality. You should also know the size of your camshaft.
We have discovered thousands of Camshafts on the market while researching. It can confuse you! We are not the only ones confused. Our team members compiled a list of all available options. Our experts then conducted an in-depth study to determine the secret to the best product. Source URL
Race gas can be used to increase the power of a 5.3L boost. If the ring pressure is higher than 15 PSI, open the ring gaps. (Stay between 10 and 10 PSI. Source URL
COMP Cams is a world-leading manufacturer of high-energy aluminium 1.5 ratio roller rockers. These rockers are designed to withstand extreme performance. It ensures maximum durability, maximum performance, and maximum valve lifts. Source URL
These 7 cam kits will increase in power and be enhanced in performance for greater performance.
- COMP Cams 17001-16 for SBC 265-400 w/ 3/8” Stud top-rated product for its long-lasting performance, performance, and quality.
- Edelbrock cam 2102 Camshaft and lifter kit
- Comp Cams 54 – 424 – 11 Hydraulic Roller Cam
- Comp Cams 54 444 – 11 Hydraulic Roller Cam
- General Motors 12638427, General Motors 1238427
- Brian Tooley Racing BTR Truck Stage 3 Cam 5.3 torque cam
- Lunati Hydraulic Flat Cam
These COMP Cams roller rockers are a universal fit and were developed in the United States. This 7.98-pound set is ideal for all vehicles, and ensures that they perform flawlessly on and off-road. Source URL
COMP Cams 17001 is stronger and more durable. This creates less friction and lowers oil temperature. This improves response and horsepower. These roller rockers are cost-effective and provide durability, strength, and horsepower, as well as horsepower. It can withstand up 550lbs of open spring pressure. Source URL
You may already be familiar with the various cam options and know which one is best for your vehicle. If you have any questions, or if you are having any issues, you can ask. Source URL
These high-energy aluminium roller rockers are ideal for both roads and moderate race use. The Die-Cast Aluminium Roller Rocker Arms has a 3/8 stud diameter and 1.5 ratio. It is strong and durable, but it is also lightweight and affordable. It features a die-cast aluminium body with a needle bearing fulcrum and roller tip. Source URL
To get the best possible experience, you need to have the right rocker arm geometry. COMP Cams is the best in their field and has made sure that their product is perfect. These rockers are built to last longer and allow serious performance enthusiasts to achieve greater power in all applications. Source URL
The kits include a set of lifters, a camshaft, assembly lubricant, and instruction. The 5.3 performance cam Lunati voodoo series provides more vacuum, throttle response, better efficiency, and quicker acceleration. It also delivers maximum torque and horsepower. It is ideal for a variety of high-performance applications. Source URL
Are Vortec LS heads any good on a 5.3?
These cathedral offerings have great flow and, unlike many truck heads, smaller factory combustion chambers (61.15cc) that won’t drop your compression into the basement. These heads were available on GM 5.3L and 4.8L engines, so they are very popular in scrapyards. According to our Econ 101 class, a large supply usually leads to a lower price. Source URL
Does the 2020 GMC Sierra Denali have a 5.3 Vortec?
The Sierra Denali’s biggest news is the increase in power. The new Denali will not have a powerful base engine that is exclusive to the model, as in previous years. Instead, it will have a 355 horsepower, 5.3-liter V8. This engine is available with all versions of the Sierra and Chevrolet Silverado. An optional 6.2-liter, V8 engine produces 420 horses and 450 lb-ft torque. These figures are the most powerful ever given to the GMC Denali. However, this engine will only be available with the Sierra SLT, which is a first for the truck maker. Source URL
How much does it cost to tune a 5.3 Vortec?
Here is a breakdown of the cost of mods and mpg. With a tune, intake, and exhaust, I would assume that you get 3mpg more overall with a tune and intake. This assumes that you drive only 20,000 miles per year. I know that many of you might drive 50k+ miles per annum on your trucks. The 3mpgs assumption is probably too generous. A 2.2 year payback period is likely to be unfavorable.
My opinion is that the only thing that makes it worth it is that you don’t add weight to your wheels and that your tires are properly inflated. Most cases, small improvements in mpg can be a nice little benefit for exhaust systems, intakes and tunes. You can use the mpg stuff to make you feel better or make your wife feel better about spending a lot of money on mods. Source URL
What was the last year for the 5.3 Vortec engine?
How much does it cost to rebuild a 5.3 Vortec engine?
This type of kit has a fixed amount of engine parts. Sometimes, you may have more than you need for a particular part, while others may have less. This kit can be purchased for as little as $800 to $1000. Source URL
These parts fit your needs and are packaged to your specifications. Standard rebuild kits can cost between $3500 and $4500. Source URL
There are many rebuild kit options and packages available, so make sure you choose the right kit to meet your engine’s performance goals. There are several channels and sources that you can purchase your rebuild kit, but Amazon is the best place to purchase it. Amazon will provide a kit for $600. Amazon allows you to check compatibility before you make a purchase. Source URL
It is important to know that the process of rebuilding the 5.3 Vortec engine can be complicated, exhausting, and time-consuming. Source URL
You can learn more about ‘Chevy-silverado transfer case problem or chevy truck blower motor problem.
Make sure to identify the parts that you want to replace in your vehicle’s engine. You should know the exact quantity of each engine part that you need to rebuild. You must also know the size and shape of your engine by measuring it. This will ensure that you have the right part to rebuild it. the 5.3 Vortec engine rebuild kit includes the gear set, camshaft, thermostat housing, cam bearing, double roller timing chain, piston bearing and crank. It also includes gaskets and piston rings. Source URL
It costs less to rebuild your engine than replacing an old or dead engine with a new one. The price of engine parts has been affected by the number of brands and manufacturers that make them. Source URL
Make sure you have checked your engine and know the exact size and shape of the parts you wish to replace. Also, confirm that they are the exact same as the kit you want to purchase. If your engine has a special connection to your vehicle, it may fail. You might rebuild the engine instead of displacing it or purchasing a new vehicle. An engine rebuild can bring you many benefits. Source URL
Is the 4.8 Vortec the same as the 5.3?
The 4.8L engine is identical to the 5.3L engine, but with a smaller stroke and lower displacement. Both engines have similar problems, but the 4.7 Vortec has a higher reliability rating on our scale due to its lack AFM. This is a problem that can cause problems on any engine it touches. Source URL
Can you get a 5.3 Vortec in a GMC Sierra?
Yes, we did not list low-volume engine/transmission options or engines that are not yet available: GM 5.3L V8 with eAssist mild hybrid or Ram 5.7L with eTorque mild-hybrid. The current GMC 5.5LV8 V8 can also be had with an 8-speed automatic. Source URL
Why does my Vortec 5.3 have a lot of problems?
Vortec 5300s with the LC9 or LH6 engine versions manufactured between 2007 and 2011 can have fouling spark plugs. This is due to carbon buildup in the PCV valve and valve cover. This problem is complicated and can be caused by the AFM, PCV valves, and valve covers. Source URL
How do you install a cam in a 5.3 Vortec?
Every top-selling product in our listing is designed to be idle. Maximum cams have enough compatibility to ensure maximum performance. They are also extremely well-structured and have more throttle response. If you have done it before, it is easy to install a cam. If the installation is complete, however, you can still read us to find out. Source URL
Step 3: Don’t leave the cam dry. Instead of being too quick, humidify the cam properly. Next, open the thrust plate to allow the cam to slide into the motor. Don’t rush! Professional advice is that the cam should be pushed slowly to ensure a proper installation. Take your time. For a more stable installation, you can also use water pump bolts. Source URL
Step 2: 2 You are probably already equipped with the tools. Take off the block and cover the front timing cover. Don’t push the block too hard, but remember to turn the cylinder piston ring. Start at the top. One more thing! Take out the oil pump and lifters. Source URL
Step 1: You will need to first manage tools such as a cam degree kit, driver kit, degree wheel, and gaskets. Source URL
How many miles will a Chevy 5.3 Vortec last?
The Chevy 5.3 Vortec can last approximately 255k to 318k miles with proper maintenance. The engine may run smoothly for longer distances if there are no problems with the fuel tank or head gasket. For safer and longer mileage, it is recommended that the engine be changed regularly and not to put too much pressure on it. Source URL
Owners of the Chevy 5.3 claim an average mpg of 14-17mpg, depending on how much highway driving they do and how much gas they use. It’s not great for people who drive a lot, but it could be worse. Source URL
What is a 5.3 Vortec engine in a truck?
How much MPG does a 2019 5.3 Vortec get?
This engine/transmission combination is mostly a carryover from 2018. AFM cylinder activation is used in this version of the 5.3L V8. It is mated with a 6-speed automatic transmission. This is where things get interesting and not in a good way. The 2019 Silverado is rated 17 MPG combined, while the older generation 2018 truck gets 19 MPG. Source URL
What are the problems with the 5.3 Vortec engine?
The Vortec 4.3L engine is the longest-lasting and most successful in the Vortec family. These vehicles were first introduced 35 years ago. There are still many of them on the roads today. These engines are solid for the most part, but there are still a few common issues that can cause problems. Source URL
It can be difficult to detect excessive oil consumption if your oil monitoring system is not working properly. This can lead to the need for a new engine. This issue is a common problem that has been around since 2010. There is currently a class action lawsuit. GM also retired the Vortec 5300 after 2013 model years due to this issue. It replaced the engine with the EcoTec3 5.3L. Source URL
The active fuel management system was a major problem with the 5.3L vortec and all Vortec engines. GM’s decision to switch to the EcoTec3 engine family was due to AFM system issues. AFM, also known as cylinder activation, is where the engine shuts down 50% of its cylinders in certain driving conditions to improve fuel efficiency. Source URL
How much horsepower does a 5.3 Vortec cam add?
RPM range: The Performer-Plus Camshaft complements performer manifolds for vehicles with an off-idle to 5500 RPM. It is the basic RPM range. The 5.3 Vortec cam is a smooth-idling cam that can be used for trucks, vans and regular drivers as well as 4x4s and RVs. It also improves throttle response and torque. Source URL
5.3 low-end torque cam-usually 114-116 LSA cams. These cams will have a low low end, smooth idle, and more top end. Source URL
- This cam provides optimal acceleration and torque.
- This includes hydraulic lifters and assembly lube.
- The 5.3 vortec cam kit is great for small blocks.
- Edelbrock improves stock and throttle response.
- This cam has a more aggressive sound and more kick.
- As the stock works, installation doesn’t require a new torque converter.
- This 5.3 Vortec performance cam has some potential and lope.
Are Chevy 706 Vortec heads any good for a 5.3 LS?
GM’s 706 Vortec heads are the best and most cost-effective heads that you can use for your 5.3L or 4.8L LS engine. Is that bold statement? It’s not. These heads are a well-known product that has been around for a long time. Many dyno tests have shown that the 706 Vortec head, which is often overlooked, can give you amazing performance. Source URL
What is the gasket on a 5.3 Vortec engine?
An intake manifold distributes air to each cylinder. The gasket seals the cylinders and prevents any air from escaping. The intake manifold on the 5.3L vortec is made from plastic. It was poorly designed. Source URL
How can I get better gas mileage in my 5.3 Vortec?
I won’t tell you to drive with a feather foot or give you useless advice. It’s a general rule that more horsepower will result in lower gas mileage. However, this is not always true. What mods can you do to increase MPG on your 5.3 vortec? Source URL
All trucks get poor gas mileage, including Chevy’s 5.3 vortec. Every smart alec will respond to the question “how do I improve my truck’s gas mileage?” by saying “buy a Prius”. A truck is essential for many people, whether you need it for work or to haul things around. It is impossible to drive a smaller, more fuel-efficient car. Source URL
What is the best rocker for a 5.3 Vortec cam?
- This rocker includes nuts and locking screws.
- It can be facilitated with full-roller rockers.
- Poly locks are included in this 5.3 Vortec lifters and cam.
- This cam is useful for all drivers.
- The rocker is significant and substantial.
How much does it cost to replace a 5.3 Vortec cam?
If you are ready for a cam, you must have a good understanding of your vehicle or engine. We have used the 5.3 Silverado as the vehicle has a 5.0 Vortec engine. Grab the chance here. To get a premium experience, you can try a compatible cam for your vehicle. International brands are always well-assembled and equipped to replace your vehicle with a better one. These features are the focus of this guide. No later! Click here to see our product discussion. Source URL
This cam and lifters for 5.3 Vortec do not include any gasket, valve springs, retainers or locks, valve stem seals or timing chain, as well as gears and gears. This camshaft’s hydraulic flat-tappet lifter style is hydraulic flat tappet. The advertised exhaust duration of the camsh shaft is 288 degrees and the advertised intake durations are 278 degrees. Source URL
How do you change a cam in a 5.3 Vortec?
Step 4 If the cam has been pushed too far back, you can replace the thrust plate. This will get your vehicle’s torque up. If the first piston remains at its dead center, be careful. This method is the most efficient. This setup will allow you to properly install the new cam. Source URL