1.7 roller rockers how much more lift ????

[83blkgt]

just wondering how much more lift cobra rockers give you then stock 1.6 rockers on say a e-cam with 220 duration and 498 lift on both intake and exhust i heard about .015 more lift or something any info helps thanks

 

[lang williams]

.498/1.6X1.7=.529 total lift if the .498 is with 1.6 rockers

 

[83blkgt]

so it would have .529 with 1.7 rockers correct

 

[lang williams]

yes...it adds more lift to the ecam than it does the stock cam because rockers multiply the lift...either by 1.6 or 1.7. so you a larger increase from the 1.7's when used with a higher lift cam. a friend of mine runs the 1.6's on the intake side an 1.7's on the exhaust side to add a little flow to the exhaust.