[Cliff R]

The 2.0 version is for sure a bigger profile, and more aggressive.

This will require room for that much lift and pressures to keep thing under control at high RPM's.

For "mild" set-ups and HR cam conversions I've had excellent success with much smaller lobes that don't work the valve train so hard. Both KRE and Butler offer HR cams with the smaller lobes. The cam card below is one KRE did for me years before Butler went that direction. Matter of fact until I provided Rodney with dyno charts showing how poorly the smaller tight LSA grinds there were using worked they didn't have a single offering with 112 or 114 LSA. Now most of what they offer are based on that deal.

Anyhow, not trying to take any credit here, what is important is that there are some really nice retrofit HR cams available for our engines that don't require a lot of running room for the additional lift.

It's also important to note that you can make great power, especially with factory iron heads without working the valve train really hard.

The dyno chart below the cam card is from a pretty "basic" 455 with just under 10 to 1 compression and the larger 236/242 HR cam with the .347" lobes.

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