what are stock 350 vortec computer controlled cam lobe separation

by Prof. Collin Mohr I Published 3 years ago Updated 2 years ago

How to choose the best Cam for 350 with vortec heads?

Aug 29, 2021 · For a 350 stock chevy engine, a suitable lobe separation angle is 107 – 108 degrees. In addition, the valve lift should be between 0.479” – 0.480”. Size of Cam. The larger the size of the cam, the more energy is required to operate the valve lift. Obviously, the biggest cam for stock 350 will take more energy.

Is a roller cam worth it on a Vortec?

Jan 17, 2012 · There are quite a few people using this cam. Elgin makes a copy of this cam under part# E1785PM and is around $100 including lifters from competitionproducts.com My 350 has the stock small valve heads, 8.5 c.r., edel. 600 carb on a zz4 intake, factory tube headers and true dual exhaust with no cats, AT, and a 3.07 rear gear.

Is a camshaft a good option for a small block Chevy?

May 14, 2007 · The cam is also a great upgrade for the Vortec engine is your vortec had a factory roller cam. Just cause they're different motors, dosen't mean things won't exchange out. Look at the 4.3 and Small Block. Pistons, Rods, Bearing, etc.. will all swap out. The 4.3 is a Small Block with 2 cylinder chopped off.

Will valve springs and cam swap between LT1 and Vortec engines?

Feb 02, 2017 · The stock L31 Vortec is basically a 300 horse engine. The cam times very close to the old 300 horse 327 and 350. The 327 used a lot more compression than the 350 which used 23 more cubic inches. The L31 is highly underrated by GM at about 250 hp SAE net, which typically in the older SAE gross tests would be 300 horses.

What is the biggest cam you can put in a stock 350 vortec?

050″. – The springs fit the vortex head without machine work. – Sounds meaner than the engine is. This camshaft satisfies all the requirements of Stock 350 and is the biggest one you can fit.

What is a computer controlled camshaft?

Comp Cams computer controlled camshafts are designed for Throttle Body Injection (TBI), Tuned Port Injection (TPI), and Multi-Port Injection systems. They provide the necessary vaccum needed for accessories like power brakes. Some of the more aggressive camshaft grinds may require reprograming of the vehicles ECU.

How do I know if I have lobe separation?

To check your LSA you calculate it by adding the intake and exhaust Lobe Centerline figures together and dividing their sum by two (Ex: 112 intake Centerline + 116 exhaust Centerline = 228 / 2 = 114-degree LOBE SEPARATION ANGLE).

What does lobe separation do on a camshaft?

“On a naturally aspirated engine, the lobe separation angle has an effect on whether the engine reaches peak torque a little earlier or later in the rpm range. Typically, narrower lobe separation develops peak torque at lower rpm and widening the separation tends to build peak torque higher in the rpm range.Dec 29, 2015

Can you cam a TBI 350?

This cam is designed specifically for the TBI 350 small-block and specs at 194/214 degrees of duration at 0.050-inch tappet lift with 0.398/0.442-inch lift. As you can tell, it doesn't deliver much of an increase in lift. The advantage is the additional duration that will move up the power curve slightly.Jan 8, 2021

How is cam lobe separation calculated?

Cam Lobe Separation Lobe separation can be measured using a dial indicator and a degree wheel, but is usually calculated by dividing the sum of the intake centerline and the exhaust centerline by two.

What makes a cam sound lumpy?

what makes the cam have that lumpy sound? The overlap of the exhaust valve closing and intake valve opening causes the engine to be inefficient at low speed which results in the lumpy idle. The closer the Lobe Seperation Angle the more the overlap, the more duration the more (typically) the overlap.Apr 19, 2008

What causes cam lobe wear?

Lobe wear is often caused by improper lubrication during installation. Use only the manufacturer recommended lubricant, which is generally included with the cam. This lubricant must be applied to every cam lobe surface, and to the bottom of every lifter face of all flat tappet cams.Apr 6, 2015

What is the best lobe separation?

LSA is the distance from the centerline of the intake lobe to the centerline of exhaust lobe. It is the average centerline between both lobes and expressed in degrees ranging from 95 on the extremely narrow/tight side to upward of 120 on the wide end....Camshaft Shootout: Lobe-Separation Angle Tested and Explained.LSAIntake Closes11344 ABDC2 more rows•Feb 21, 2017

What is camshaft lobe?

Cams located on the camshaft that open and close the intake and exhaust valves in time with the motion of the piston. Cam lobes control the valve lift, and there is a direct relationship between the shape of the cam lobes and the way the engine performs in different speed ranges.

What does ICL mean on a cam?

The curve stays higher well past a tighter LSA cam's curve, which can cause the wide cam to make more power at top end. As for the Intake CenterLine (ICL), the curve stays the same but it is moved up or down the rpm range by advance or retarding the cam.Oct 5, 2003

Features of a perfect Cam For Stock 350

A perfect cam will help the engine operate at full capacity and ensure a long engine life. Not all expensive or featured cam sets are good for your camera. So, you must choose the right cam set according to the required parameters of the engine.

Overview Of 4 Best Biggest Camshaft For Stock 350

COMP Cams is a famous and trusted brand in the world, born in 1976. For decades, COMP Cams CL12-600-4 or Thumper cam 350 has been the best performance cam for stock 350 chevy.

Conclusion

There are many best biggest cam for stock 350 Chevy engine. We have just learned the details of the top 4 best biggest cams with their specifications and pros and cons. As you know, each product has its requirements and purposes. So choose the products that suit your needs as well as the engine requirements!

How to Choose the Ideal Cam for 350 Chevy

When it comes to cams for 350 chevies, you need to consider certain factors for choosing what’s right for you. In this section, we’ll discuss these factors in brief.

Top 5 Best Cam for 350 Chevy Truck Reviews in 2022

Here we’ll list the products with their key features and details. Go through them to learn about their advantages as well as disadvantages.

FAQs About Cam For 350 Chevy

A camshaft improves a car in several ways. It will increase the overall horsepower of the car, improve the torque curve, and make the throttle more responsive. Plus, cams can also help the engine provide more power using less fuel, which in turn reduces fuel consumption.

Conclusion

From the products reviewed above, you should be able to pick the best cam for 350 Chevy truck. All of these products are top-notch, but all of them offer unique traits.

What is LSA camshaft?

Selecting a camshaft for a given engine’s purpose usually involves a compromise between low- or high-end power options, and the lobe separation angle (LSA) is one of those factors where engine builders have to make a choice between those priorities.

Why widen camshaft separation angle?

Widening their separation angle helps increase upper rpm power output. Alternatively, if you are running a bigger camshaft to gain maximum top-end power, cam makers often suggest reducing the lobe separation angle to recover power lost in the lower rev range.”.

What does a narrower lobe separation do?

Typically, narrower lobe separation develops peak torque at lower rpm and widening the separation tends to build peak torque higher in the rpm range. Nitrous engines, which make plenty of power and torque, often run wide lobe separation angles to moderate cylinder pressures and temperatures.

Does valve lift affect LSA?

Valve lift will bear weight in any decision regarding LSA. “If you changed the lobe separation of a street engine from 112 degrees to 106 and didn’t do anything else,” adds Kaase. “The engine would idle a lot rougher and generate worse exhaust emissions largely because of unburned fuel.”.

How much lift does a Vortec head have?

Stock vortec heads have a maximum lift of around 480 or the press-in rocker arm studs pop out, as long as you upgrade to some screw in rocker studs you'll be good to go with stock Vortec heads.

Is a Vortec 4.3 a roller cam?

The cam is also a great upgrade for the Vortec engine is your vortec had a factory roller cam. Just cause they're different motors, dosen't mean things won't exchange out. Look at the 4.3 and Small Block. Pistons, Rods, Bearing, etc.. will all swap out. The 4.3 is a Small Block with 2 cylinder chopped off.

What is a L31 Vortec?

Click to expand... The stock L31 Vortec is basically a 300 horse engine. The cam times very close to the old 300 horse 327 and 350. The 327 used a lot more compression than the 350 which used 23 more cubic inches.

What cam is 14097395?

Optional to the 14097395 cam would be the 12551142 cam. The 14097395 is ground on a 111 degree lobe separation angle and is not considered by some to be computer friendly, while the 12551142 is ground on a 115 degree lobe separation angle and may work a little better in a computer-controlled motor. Further, it has an intake duration of 203 degrees @ 0.050" tappet lift and an exhaust duration of 210 degrees @ 0.050" tappet lift, so it is a little hotter cam than the 14097395. Lift is 0.446" intake and 0.450" exhaust, using 1.5:1 ratio rocker arms. A light ghetto grind of 0.030" to 0.050" on the retainers would re-establish the safety margin between the bottom of the retainers and the tops of the valve guide seals.

What camshafts are best for 350 Chevy?

May require a lot of vacuum pressure. Lifters may not be as durable as the camshafts themselves. 2. COMP Cams 12-602-4 Camshaft For 350 Chevy – Best Hydraulic Camshaft Review. This heavy-duty COMP’s option will give your engine all the horsepower and torque that you are looking for in one affordable package.

What is cam lobe separation?

Cam lobe separation is the degree of the angle between the maximum lift of a pair of cam lobes. Cam lobe separation is an important performance characteristic because it times the intake and exhaust valves.

What is a 12-602-4 camshaft?

The COMP Cams 12-602-4 camshaft has three different grinds for different performance applications that range from lower compression builds to higher compression engines in cars with looser torque converters and lower gear ratios.

What is camshaft operating range?

A camshaft’s operating range it essentially its sweet spot, where it gets the most horsepower possible . Luckily, this model comes with a very high RPM operating range that allows it to work its best within a large range of RPMs.

What is a camshaft kit?

This camshaft option comes as a kit that contains everything that you need for installation and use. This kit contains the camshaft, lifters, and cam Zinc additive lubricant. It also comes with written instructions to make for easy installation.

When will Mithcel Major make a new camshaft?

Mithcel Major. October 23, 2019. If you are in the market for a new camshaft for your 350 Chevy, then you know how frustrating it can be to have to search through all the various options available on the market today. With every different brand and model claiming to be the best choice for your engine, it can feel like you don’t know who to trust.

Does a camshaft come with a kit?

Comes With a Full Kit. This camshaft doesn’t just come by itself, it also comes with a set of lifters, written instructions for easy installation, and an assembly lubricant. This camshaft kit comes with everything that you need in one purchase so you don’t have to buy anything else with it, even for installation.