Ok i want to know what size rocker should i run i have a 1915 10-1 compression VZ-15 cam bigger valves not sure of the size and stock rockers. I want to upgrade to roller rockers. stock is 1.25 i think correct me if im wrong what would it do if i went to a 1.5 or to any size other than stock.

Stock are 1:1 ratio. I think the ones you are looking at are 1:1.45. They should do alright with a VZ15

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When in doubt, hit it in second gear!

Stock are 1.1 The pauters roller rockers are 1.3& 1.4& 1.5 will be to much for most valve spring valve lift vz15 1.1 rocker .478" 1.25 .540 1.4 .609"

so what would i be safe to run with the VZ-15 cam how big can i go with out hurting anything.

ive got a vz 15 in 1 of my motors and they are a 1.1 rocker cam only due to ramp and lift of the cam and some say they wear out the lifter boars but i havent been back into mine since was put together so i cant verify that

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Just Stand On It!!!!

Chris

1.1

Yes you are right on 1.1 rockers lifter boar can be a problem

1.1 stock ones work perfect, use swivel feet rockers and lash caps. I take some material off the bottom where the adjuster screw goes but others do not.If you don't get your lifter bores sleeved with silicone bronze sleeves, expect to do it down the road in 5-10k miles.