Solid Roller camshaft selection those of you running a 408 race application - lobe seperation

Illahe said

I have an unused lunati 251/251 on 105 Lsa but Bullet said it was too tight of a lsa for 414 small block. Ken at Or ground me a solid on 108Lsa and Jim at Racer Brown sent me a 107 lsa. Different opinions. Schneider seems to understand Mopar and has a nice catalog of patterns. Good luck. All SFT though.

Click to expand...

On a 408;

2.02 - 105.02 LSA
2.08 - 105.68 LSA
2.15 - 106.41

For a 434;

2.02 - 103.56
2.08 - 104.26
2.15 - 105.03

A 26 cubic inch difference between the two. Notice how close the numbers are the trend of which they go. About a degree and a half tighter going to a larger engine. So is a 105 to tight? I don’t think adding two more wider is going to kill it.

According to D Vizard which is Chevy math for the 23* angle. Being the MoPar has a 18* angle, you could probably do with 2* less and be fine. 1* won’t show crap.

Take for what it is, an approximate and close.