# 91 305 engine ?

**URL:** <https://forums.speedlife.net/t/91-305-engine/189411>\
**Category:** PittSpeed Automotive\
**Created:** [April 20, 2007, 2:45pm UTC](https://forums.speedlife.net/t/91-305-engine/189411 "2007-04-20T14:45:13Z")\
**Posts on this page:** 1\
**Showing post:** 28

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**Author:** ![eurodad](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/eurodad/32/5988_2.png) [@eurodad](https://forums.speedlife.net/u/eurodad)\
**Post date:** [April 22, 2007, 4:03pm UTC](https://forums.speedlife.net/t/91-305-engine/189411/28 "2007-04-22T16:03:25Z")

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> [@FEELER: 1989 Kawasaki Ninja 600R](https://forums.speedlife.net/t/feeler-1989-kawasaki-ninja-600r/24968/64):
>
> Is the rocker ratio the same on a roller cam motor? Like 1.6 or are the roller camed motors 1.5?

1.5

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