How do I choose a spring for my camshaft?
How do I choose a spring for my camshaft?
An important factor when selecting valve springs, is choosing the correct seat pressure, open pressure, and spring rate for the camshaft being used. In theory, you can gain free horsepower just by choosing the proper springs for your engine.
How much lift can stock LS valve springs take?
The factory LS1 valvesprings will tolerate . 520 lift (LS6 and LS3 slightly more), but aftermarket performance cams can reach . 624 lift in some applications. Attempting to run a high-lift cam with stock springs will result in coil bind and catastrophic failure of expensive valvetrain components.
Do stronger valve springs add horsepower?
engine with a bigger cam and a better spring than the stock 454 H.O. and still managed to improve the peak power by 20 horsepower and increase the peak engine speed from 5,200 to 5,600 rpm. This really came as no surprise.
How much valve spring pressure do I need for a solid street roller cam?
Engines with solid roller cams are usually performance, race engines. They use aggressive Lobe Profiles and usually run at high rpm….Seat Pressure Guidelines.
| Camshaft Type | Seat Pressure |
|---|---|
| High Performance/Circle Track | 220 – 250 lbs. |
| Professional Drag Racing | 340 – 370 lbs. |
How much lift can LS6 springs take?
Chevrolet Performance 19420455 – LS6 LS9 Valve Spring Kit
| LS6 LS9 Valve Spring Specifications | ||
|---|---|---|
| Description | Installed Height | Max Lift |
| Single Beehive | 90# @ 1.800” | 0.570” |
How much lift can stock 5.3 springs handle?
the factory springs can only handle about . 500 lift.
What do heavier valve springs do?
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.
Can you have too much valve spring pressure?
If the spring pressures are too high, the added friction will result in: More heat, Faster valvetrain wear, Potential failure of other valvetrain parts (i.e. rocker arms, pushrods, etc.), and.
What can happen if valve spring tension is too low?
If the spring pressures are too low, a condition called “Valve Float” will occur.
What Gen is LM7?
Gen. 3
The LM7 is a 5.3L, Gen. 3 small block engine used in GM trucks between 1999 and 2007. For marketing purposes, it was also known as the Vortec 5300. The information listed here is for the stock LM7 engine.
