Quote:
Originally Posted by charlie66
Do you think I could do it with the cam I just bought from Butler? The springs I have right now have 140lbs on the seat I think 325 open at .550. with 1.810 installed height so there is room to shim. I wanted to do it, but I was worried about failure just because I have no experience at all doing this and it's not my motor. Is there any risks in your opinion? I just don't know if the solid lifter will hold up over time as the hydraulic lifter will. I didn't go solid cam because I was told that the size I wanted was too small for a true solid cam profile. So, he told me I needed to go hydraulic with solid lifter. But I never heard of doing this before so I felt uncomfortable trying it.
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After thinking about this. I wouldn’t use that Butler profile with Solid roller lifters on a Pontiac with Aluminum heads. Even zero lashed cold the hot lash window is to tight. It is the wrong HR profile. That’s needs an HR lifter like an Evolution HR, Gaterman, or Johnson PR lifter. I could show you want the profile should look like if you’re interested in running SR lifters on a HR profile. But I could pick a full SR profile out also. That Butler cam isn’t a good choice for this.