What are the Stock Chevy 350 Cam Specs?

Chevrolet Technology and Innovations
1

I’ve been diving into my Chevy 350 engine project, and I need some help with the stock camshaft specs. Specifically, I’m looking for detailed information on the cam specs for the Chevrolet 350 from the 70s onward. If anyone has the lift measurements, duration, and any other technical parameters, that would be super helpful!

Here’s What I’m Trying to Find Out:

  • Lift Measurements: What are the stock lift values for various models?
  • Duration: How long are the intake and exhaust durations for stock setups?
  • Lobe Centerline: Any specifics on lobe separation would be great too!
  • Applications: Are there different specs for different setups like trucks versus sports cars?

Why It Matters:

I’m considering some performance upgrades and want to ensure I’m starting with the right baseline specs. I know there are many aftermarket options, but having a clear idea of the stock specs can help me decide whether I want to stick with the stock cam or go for something more aggressive.

Additional Thoughts:

If you’ve made any upgrades to your cam or have experience with performance builds, I’d love to hear your thoughts! How do the stock specs compare to performance cams, and what differences did you notice? Any recommendations would be appreciated!

Thanks in advance for your insights!

2

The stock Chevy 350 camshaft typically has a duration of around 204/214 degrees, lift of .420/.442 inches, and a lobe separation angle of 112 degrees. These specs are crucial for engine performance and efficiency.

3

That’s good to know! I’ve always found that the lift can really affect the torque curve, especially at lower RPMs.

4

I agree, @jasminejoseph! The lift has a significant impact on performance. The stock cam’s specs are good for daily driving, but if you’re looking for more power, you may want to consider aftermarket options.

5

Absolutely! I’ve seen a noticeable difference with a higher lift cam; it really opens up the engine!

6

For those considering a cam swap, remember that altering the duration can change your valve timing, potentially affecting your engine’s power band.

7

With a stock Chevy 350 cam, you get solid performance, but I’ve been tempted to try a cam with a bit more duration for my hot rod project!

8

Just curious, has anyone tried changing the lobe separation angle on their 350? I wonder how that impacts drivability.

9

I have! It really smoothens out the idle but can reduce total peak power potential.

10

I’ve always been satisfied with the stock specs. They balance power and reliability, which is exactly what I need for my daily driver!

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For a light-hearted take, I think the stock cam is like a well-balanced meal: it gets the job done without giving you indigestion!

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12

Haha! That’s a great way to put it! Sometimes simple is best, especially if you want to keep things running smoothly.

13

It’s interesting to see how everyone’s experiences differ. I’ve contemplated a cam swap, but I worry about sacrificing drivability for power.

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I understand your hesitation, @kimlogan. Finding the right balance can be tricky! It’s all about your priorities.

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To sum it up, understanding these specs helps make informed decisions. Each of our experiences can guide others in the community!

16

The stock Chevy 350 cam specs are pretty mild, generally around .390 lift and 204/214 duration. Upgrading can improve performance significantly!

17

That’s a good point! Looking at aftermarket options, any suggestions for a balance between performance and reliability?

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18

Consider a cam with around .480 lift and 224/234 duration—this will give you a noticeable increase in torque and horsepower. Just be ready to address fuel delivery and exhaust!

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19

That sounds great! What kind of fuel upgrades would you recommend?

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An upgraded fuel pump and larger injectors can help. Don’t forget a proper tuning afterward to maximize your new cam’s potential.