Do heavier valve springs add horsepower?

Simple physics tells us that heavier objects require more force to accelerate, just like a heavier car requires more horsepower to accelerate. Adding larger valves means the valvespring must control additional weight, more than likely at higher engine speeds.

How often should valve springs be replaced?

By the time original equipment valve springs have 100,000 or more miles on them, they have probably lost up to 10\% or more of the tension they had when they were new. Most engine experts recommend replacing valve springs that have lost 10 percent or more of their original tension.

Can valve springs be too stiff?

valve float and engine damage can occur if spring tension is too light. If the spring is too stiff, it will result in loss of power. The springs can be plain worn out if they are too high or too low. …

What will stronger valve springs do?

This allows more of the spring load to control the valve. So a higher seat load with a lighter upper mass of the spring combines to give the valvetrain more control.

Should valve springs be replaced?

Replace or Reuse Valve Springs Valve springs do wear out. If you are rebuilding the engine, it is a good idea to replace the valve springs. When swapping a cam, the most important thing to avoid is valve spring coil bind. Coil bind occurs when the camshaft lifts the valve further than the spring can compress.

Can you replace valve seals without removing the head?

After miles of service, the valve seals in the cylinder head of your vehicle wear out and become brittle. On most vehicles, it’s possible to replace these valve seals without removing the head. With the right tools, learn to perform this job in your garage and save a lot on repair costs.

What will a broken valve spring do?

Broken valve springs cause excessive valve noise, compression loss and can cause severe internal engine damage. The actual breaking of the valve springs is not always the most serious consequence. Actions following the breaking cause the most serious damage to the engine.