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How to Choose the Best Camshaft for Your LS Engine

When it comes to maximizing performance from your LS engine, one often-overlooked yet highly critical component is the camshaft. A well-matched cam can make all the difference between respectable power gains and a flat, lifeless sound note.

In this article, we'll dive into what you need to know when selecting the ideal cam for your LS-powered ride, as well as some top recommendations from reputable manufacturers like Summit Racing's Pro LS Vortec line.

Understanding Camshaft Terminology

Before diving headfirst into cam selection, let's take a moment to understand some key terms:

- Lift: This refers to how far the valve opens (in thousandths of an inch). Higher lift cams typically produce more power but may require larger heads and intake manifors.

- - Duration :This measures for how long the valve is open. Longer duration means a longer opening time, which can result in increased torque output at lower RPMs.

Camshaft Types Explained

LS engines are known for their flexibility when it comes to cam choice due largely to their similar bore spacing across various displacement levels (4.8L-6.0L). However, this also presents an overwhelming array of options that can quickly become daunting even for experienced tuners.

There are essentially three main types of camshaft profiles available:

1. Street/Performance: These cams strike a balance between everyday drivability and moderate performance gains on street-friendly octane pump gas (87 Octane or higher). They're ideal for daily drivers, weekend warriors looking for some added oomph without sacrificing tractability.

2. - Drag/Supercharger/ nitrous : Designed specifically for maximum power output under heavy boost or forced induction conditions These cams feature aggressive camshaft profiles with shorter lobe separation (typically 110-112 degrees) and longer duration numbers (+.600' lift, +225° Duration at .050') to take advantage of the increased displacement from Forced Induction.

3. Drag/ Drag Pro : The holy grail for drag racing enthusiasts These cams feature extremely aggressive camshaft profiles with very short lobe separation (usually 108-110 degrees) and extreme duration numbers (+230+240° Duration at .050'). They're intended exclusively for competition use only due to their notoriously harsh manners on street driving.

Top Cam Recommendations

Now that we've covered the basics, let's look at some top camshaft recommendations from reputable manufacturers:

1. Pro LS Vortec Stage 2: This high-lift version (218/227 .600/.600 lift) features a robust build quality and is suitable for most street applications.

2. - Comp Cams ProX Street/Street Performance Camset : A tried-and-true choice among LS enthusiasts, offering excellent torque output throughout the RPM range without sacrificing tractability on everyday driving duties.

3. . LS1 Tech Stage 4 Shorty Big Block cams: These aggressive camshaft profiles feature +230° Duration at .050' lift and are ideal for heavily modified engines running forced induction or nitrous oxide systems only!

In conclusion, selecting the right camshaft is a critical decision that can make all the difference in your engine's overall performance potential. It's essential to consider factors such as intended use (street driving vs. drag racing), budget constraints, and personal preferences when making this choice.

Remember - there are no 'one-size-fits-all' solutions here; each vehicle will require a unique combination of camshaft characteristics that suit its specific needs. Take the time to research thoroughly, consult with experienced tuners or mechanics if necessary, and always choose reputable parts from established manufacturers like Summit Racing's Pro LS Vortec line.

By doing so, you'll be well on your way to unlocking the true potential hidden within your LS engine - faster acceleration times included!

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