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Old 01-29-2022, 07:17 PM   #3
AussieinNC
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Join Date: Jun 2017
Location: Cherryville, NC
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Re: How much is too much lift for Cathedral port heads.

Grab yourself a beer (or a coffee) and read this excellent article.

https://www.lsenginediy.com/best-cam...iv-ls-engines/

It gives you a good overview of which cams work best with what and the presentation is easy to understand.

0.600 lift is achievable, but its not all about lift. Consider LSA (Lobe Separation Angle) for drive ability and torque creation.

Remember, HP doesnt move the vehicle, Torque does. and the lower rpm the torque comes in the more driveable the vehicle.

There are various vids on youtube that match the sample low LSA cam against several altered LSA cams, each with the same lift, going from starting point of 108 in stages to 116.

The 116 may sound "nice and lumpy" but is drops nett HP and torque down from the 108.

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