[C-lane]

Originally Posted by "QUICK-SILVER"

Before you go much further...
Does your 557 block have 5 motor mount bolt holes per side?
If not 5 holes...Does it have the lugs that can be drilled and tapped so you can use the 65 motor mounts.

Need to be careful with cam choice on this. Longer advertised duration, depending on ICL, can make the intake valve close later in the compression stroke. That would make for less power, right off idle and low RPM's, than what it has with the 066 cam.

Clay

Ok well I went and counted the holes by where the motor mount holds go...it has 3 in the front of the motor. And two flat spot where two more could go and on the inside of the motor there is thicker steel on the block . Is that the spot that needs drilled? What size hole and thread?

I plan on going with the http://www.lunatipower.com/Product.aspx?id=1759&gid=278 and Rhoads lifters. Certainly hopes it's a good choice

[C-lane]

Originally Posted by Jay S

I believe that lunati 276/286 cam is a old Ultradyne cam. You can see it’s cousins on Bullets sight. I think it is h4 on the intake, the exhuast is down the list further, h9. It is rated at .0045 lift. I think to convert it to .006 it is 270/280

http://www.bulletcams.com/Masters/ultradynemasters.html

It is a great cam you can expend on starting from stock valvetrain components. You can add bigger ratio rockers to it later and get up around .5 lift later with some springs to match. Jay

Ah I think I'm going with the http://www.lunatipower.com/Product.aspx?id=1759&gid=278 and Rhoads lifters. Haha It seems like that's what you would go with if you was me and you seem very educated on this subject so tried and true it'll be.