What Are the Best Cam Specs for a 350 HP 327?

Chevrolet Technology and Innovations
1

I’m currently working on a project with a 327 engine that I’m hoping to get up to 350 horsepower, and I’m in need of some solid camshaft specifications to make sure I get the right setup.

Specifics I’m Looking For:

  • Lift: What lift should I be aiming for to achieve this kind of power?
  • Duration: I’ve heard different things regarding duration — any recommendations?
  • Aftermarket Options: Are there specific camshafts that people have had success with on a 327 for this HP range?

I’m hoping to get some advice or suggestions from anyone who has experience with this engine or has done a similar build. Would also appreciate any tips on installation or tuning to hit that horsepower goal without compromising reliability.

Thanks in advance for any input! Let’s get this engine roaring!

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2

When looking at cam specs for a 350 HP 327, focus on lift and duration. Typically, a lift of around .500 to .550 inches with a duration of 220-230 degrees at .050 will work well.

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3

Great starting point! Don’t forget lobe separation; a 110 to 112-degree lobe separation can give you a nice balance of torque and horsepower.

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I’d also recommend considering your intended use. Street vs. track can change your cam choices dramatically.

5

Exactly! The right lobe separation can help avoid power loss. A wider angle can smooth out the power band for daily driving.

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So, assuming we’re optimizing for a street engine, what about the influence of valve timing? Should it be advanced or retarded?

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Advancing the timing can improve low-end torque, but too much can hurt higher RPM power. It’s a balancing act!

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Great advice! Also, forget not proper tuning afterward. Even the best cam won’t shine without a good tune.

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A good dual-plane intake can help match the cam for street driving. Have you guys had success with any specific brands?

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For sure! I’ve had good results with Edlebrock Performer series. They work well with a variety of cams.

11

Isn’t it interesting how a slight change in cam specs can completely alter the character of the engine? It’s all about compromise.

12

Totally! It’s like choosing between a comfy sofa or a sleek racing chair. Both have their charm but serve different purposes!

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13

I love the sofa analogy! It’s definitely a balancing act between comfort and performance.

14

Can anyone tell me if lift affects fuel consumption significantly? I’m curious if there’s a trade-off.

15

Higher lift usually means better airflow, which can improve performance but sometimes at the cost of fuel mileage. It depends on how you drive it!

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16

Am I the only one who thinks this is getting a bit complicated? I just want to make my car go vroom!

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17

Haha, you brave soul! Remember, understanding is part of the journey. You got this!

18

I’m running a 327 and I’ve had great results with a Comp Cams 268H. It’s perfect for a street engine targeting around 350 hp. It offers a good balance of torque and power without being too aggressive.

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I second that! The 268H is very street-friendly. You also get a nice lope at idle that sounds great!

20

If you’re considering strip or racing, I’d look at a bigger cam like the Lunati Voodoo 60101. It brings in a lot more top-end power and really wakes the engine up for performance.

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