Cam and shaft mounted rocker help

[pupjoint]

Been reading q/a about cams and lifter set ups. I need a little help also. I have a 360 stroked to 408, running "J" heads, lunati voodoo hydraulic flat tappet cam 268/276 duration, .494/.513 lift. I want to up grade to roller rockers, would I need 1.5 or 1.6 ratio, and would the standard push rods be sufficient. The valve springs have been worked to match my cam setup. any help much appreciated.

 

[rumblefish360]

Your stock rockers are 1.5. Going to a 1.6 would require recalculating the new lift and possibly getting new springs.

You'll need new pushrods. The stock pushrods have a ball on each end while the adjustable rockers will have a ball on the bottom and a cup up top.

Huges engines has an adjustable pushrod checker that you can use and then send back to order a set at the length you set it at.

 

[pupjoint]

Thanks rumblefish360, I was reading some threads it it turned out to be about 12 pages long where myasylum had problems I dont think I want to get into all of that, Again thanks