SBC Chevy 383 406 Comp Cams 510/525 RETRO Hyd. Roller Cam #12-000-8-11480 | Spring over white ledge (2023)

FAQs

How do you identify a comp cam? ›

COMP Cams uses two-number designations for all its engine families. The LS engine is designated 54 and this number is generally the first two numbers that define the actual cam part number. Other examples include small block Chevys -12, big block Chevys -11, and 5.0L small block Fords -35.

This COMP Cams® HV cam is designed for GM cathedral port 4.8L/5.3L/6.0L powered vehicles. It provides amazing drivability and throttle response while also requiring minimal tuning. Torque is increased across the entire operating range while still producing +79 horsepower at peak.

According to our BrandZoom™ Camshafts report, based on surveys of automotive enthusiasts who have shopped for or purchased a cam, the top 3 camshaft brands that are most trusted are COMP Cams, Crower and Edelbrock (in alphabetical order). Each of these three had a 90% or higher positive perception.

Standard Small Block Chevy -uses “12” Prefix

It's important to note that the 1955-1957 versions require an oiling groove to be machined into the rear cam journal, but the camshafts are interchangeable.

Typically, a head with a high percentage can use a cam with more closely matched intake and exhaust lobe figures. Conversely, a head with a poor ratio between the intake and exhaust flow will benefit from more exhaust duration to evacuate the burned gases.

The secret to choosing a cam that will deliver the kind of performance you want is to figure out the rpm range where the engine should make the most power, and then choose a cam that will match the breathing characteristics of the cylinder heads, intake and exhaust manifolds, weight and gearing of the vehicle the ...

Adjusting the camshafts so the cams are slightly ahead or behind will alter the engine's performance. Advancing the timing will cause the fuel intakes to open and close earlier, which improves low-end torque. Conversely, retarding the cam will improve high-end horsepower at the expense of low-end torque.

The bigger the camshaft, the more it really needs part-throttle timing at low engine speeds.

It is a lot more aggressive and worth an additional 20 hp on top of the gains from the 8710 grind or 123 hp over a stock LS3 when combined with a stroker kit.

What makes a cam better? ›

Rule of thumb: A cam with a wider lobe separation (112-116 degrees) allows torque to be spread over a larger portion of the engine's rpm range and offers better power throughout the upper-rpm range.

Benefits of a Twin-Cam

The design of a DOHC allows for less restricted airflow at higher speeds. If the engine also has a multi-valve design, it also experiences improved combustion for better efficiency because of the placement of the spark plug.

The 327 L84 remained the most powerful Chevrolet small block production engine ever until the quad-cam LT5 came out in the 1990s. And it was the most powerful naturally-aspirated single-cam small block until the arrival of the LS6 engine in the early 2000s.

The 350 had more torque and a production lifespan that endured for decades until the end of the Gen 1 SBC. Despite being down on inches to the 350, the 327 Chevy still lays claim to the most powerful production conventional small-block ever produced, the L84.

How does cam timing affect ignition timing? In a short, two word answer... it doesn't. I get questions from people asking: "My cam is advanced 4 degrees, where should I set the ignition timing on my engine?" The complete answer is; Wherever your ignition timing is normally set at. Cam timing is VALVE timing.

Cam and Heads Add Over 100 hp to Small-Block - Mini Mouse, Part 2.

Most Stage 1 type modifications are typically in the +10-15% power increase over stock. Stage 2: this is typically referred to an engine with a performance cam upgrade as well as the other components within a Stage 1 combination. A typical Stage 2 has generally +20-25% more HP than stock.

QUESTION. On a scale of 1 to 10, how important is it to do the [cam] degree step? Critical for achieving max cam performance, preventing piston-to-valve contact, and as a doublecheck against assembly errors, accurately locating TDC and degreeing in a custom cam should be a routine procedure for every hot rodder.

In other words 'intensity' described how quickly the cam opened and closed from lower lift points to his standard lift point of 0.050”; the smaller the intensity, the more aggressive the opening and closing.

A cam's "lift" number represents how far the valve will open inside the cylinder. More intake lift means that more air and fuel can enter the cylinder (except with direct injection, where the intake valve brings only air to the party) and, theoretically, more power can be made.

What is the advantage of over head cam? ›

It is shown that the principal advantage of overhead camshafts is the increased natural frequency of the valve train. The resulting improved dynamic characteristics of the valve-actuating mechanism make it possible to design camshaft profiles which expand the useful operating range of high-speed engines.

Cold Air Intakes are said to improve your vehicle's performance by 5-20 horsepower. This number will vary depending on the make and model of your vehicle. While this isn't enough power to put you back in your seat, it will give your car or truck a little pep in its step.

The less duration the camshaft has, the more torque an engine will make; the higher the duration, the engine will make more top-end horsepower, but not as much torque.

Yes, especially if it has a nice lope to it. All my cammed cars got louder after adding a cam.

Because one turn of the camshaft completes the valve operation for an entire cycle of the engine and the four-stroke-cycle engine makes two crankshaft revolutions to complete one cycle, the camshaft turns half as fast as the crankshaft.

Specs: 231/244 .630"/.615" 112.5+2.5

The BTR Stage 3 N/A Camshaft (LS1/LS2/LS6) is the go to for people desiring an aggresive idle matched with a powerband that will stretch into the 450+ whp range around 6000 RPM when paired with quality supporting modifications.

The Stage 4 235/248 camshaft is the perfect choice for customers wanting the MOST powerful camshaft available that still offers adequate piston-to-valve clearance on a stock short-block. This camshaft is designed for all-out power and shows gains over the stock camshaft beginning at 3,100 RPM.

Add up to 180 horsepower with the Stage 2 Turbo HRT Cam for Dodge Hemi 5.7L-6.4L w/ VVT 2009+ applications. Best camshaft for larger (80mm+) turbochargers with optimized low back pressure systems. Dyno tested to 7500+ RPM. Requires DOD Delete Kit, #7230 valve springs & phaser lock.

For optimal appearance in a video conference call, you should place your webcam just above your eye level and angle it slightly downward. You should mount it no higher than your hairline. If the camera is too low or high, the angles can exaggerate your facial features and distort your appearance.

What is the longest live camera? ›

The San Francisco FogCam!

The world's oldest webcam. Live San Francisco views since 1994.

Generally its because the aftermarket camshaft (s) are lobed to change the power band of the engine. Valves may stay open longer, close quicker than the stock cam was designed for. This is why idle may sound “choppier" and run rough at idle.

Generally speaking, the longer the duration the higher the rpm range where the cam makes power. Short duration cams are good for low speed torque and throttle response while long duration cams are best or high revving engines that need to make lots of top end power.

Tuner Series Stage 2 Camshafts are designed to optimize horsepower and torque on engines featuring free-flowing intake and exhaust tracts, increased compression, and upgraded valvetrain. As a result, VTEC crossover is dramatic, allowing for that classic primary-to-secondary surge.

DOHC engines allow more intake and release of the air-fuel mixture than a SOHC arrangement. It enables the engine to be more powerful and gives you a better pickup. In simpler terms, a DOHC engine can produce more horsepower than a SOHC engine with the same displacement.

It is a really serious engine problem that needs a lot of attention to get fixed. The scariest part here is that it can fail at 15,000 miles and even the new hydraulic system can fail at 40,000 miles or less. The plastic shoes need replacing every 40,000 miles because of its weak durability.

Twin cam refers to an car's engine which has two camshafts per cylinder bank. The two act together as one is responsible for intake valves while the other acts as for exhaust valves. This is more efficient than one cam for both jobs. The idea is to provide improved fuel efficiency and performance.

Reading a Cam Card: Lobe Separation Angle (LSA)

On this cam card, you will see the LSA is 112 degrees. This figure is derived by adding the intake center line plus the exhaust center line and dividing by two. In this case: 108 + 116 = 224 degrees / 2 = 112 degrees.

You can identify a genuine Crane cam core by the distinctive copper plating between the lobes! Crane 8620 and 9310 steel billet cam cores are used by prominent racers, engine builders, and manufacturers.

What are the two types of cam? ›

Cams can be classified into two main types: oscillating cams, which are mounted on a rotating shaft and rotating cams, which are mounted on a stationary shaft.

The short answer is that the +2 refers to how the cam is ground relative to the LSA and the cam's intake centerline. The +2 in this instance means it has been machined with two degrees of advance built into the cam, placing the intake centerline at 110 degrees BTDC.

To determine if a camshaft has ground-in advance, subtract the Intake Centerline from the Lobe Separation Angle. For example, a camshaft has an intake centerline of 107° and an LSA of 112°.

Does Camming A Truck Make It Faster? In most cases, yes, but it depends on the model of the truck and which custom cam you use. With that said, aftermarket cams are designed for high-end performance, so you can typically expect to experience faster speeds after camming a truck.

The Four Keys to ID

Whooping Cranes are very large, tall birds with long necks and long legs. The bill is stout and straight; the overall slender body widens to a plump “bustle” at the tail. In flight the wings are broad and the neck is fully extended.

Simply measuring the diameter of the base circle, and subtracting that from the largest diameter of the cam, the lobe lift, will calculate the lift of the cam.

Great Blue Heron (Ardea herodias) – Herons are found throughout the US. They are similar in characteristics and habits to egrets, the only exception being herons' blue-gray coloration. They can be distinguished from Sandhill Cranes by the “crooked” neck and curved (as opposed to cranes' flat) wings in flight.