Voodoo and thumper are they based on 1.5 or 1.6 rocker ratio?

[70Roadkill]

so I’m looking at the comp cams or voodoo roller cam and looking at the spec card it doesn’t specify 1.5 or 1.6 rocker ratio. Building a magnum engine with eddy heads and not sure if I need to do the math if the cams are based on 1.5 or if the specs are for a 1.6 and no need to figure out the math.

 

[sireland67]

Voodoo is 1.5

 

[Toluene56]

I believe they're 1.5.. usually they'll specify 1.6 i've noticed.

 

[70aarcuda]

take the lobe lift and multiply it by the rocker ratio and see if it matches the valve lift..

and you will never have to ask that question again...lol

 

[70Roadkill]

Thanks for the replies, helps a bunch. Looks like I’ll go down one size and figure out the ratio. Being the magnum a 1.6 ratio the ones I was considering will be too much. Going down one size with the 1.6 should get me back to what I was looking for.