Thread: Top Speed
View Single Post
Old July 17th, 2017, 09:44 AM   #26
Triple Jim
Guy Who Enjoys Riding
 
Triple Jim's Avatar
 
Name: Jim
Location: North Carolina
Join Date: Jul 2016

Motorcycle(s): Ninja 250

Posts: A lot.
MOTM - Oct '18, Aug '17, Aug '16
Quote:
Originally Posted by JacRyann View Post
Wow... wish I could get cams ground for that price!

Depending upon the drivetrain layout, you'd insert a shim of same thickness as reduction in base-circle. This would prevent your hydraulic lifters or rocker adjusters from running out of range. Extra lift comes from thickness of this shim + original cam-lobe height.
With the small block Ford, the small reduction of base circle was not enough to make much difference to the pushrod and rocker arm geometry. I can't remember... I may have bought a set of slightly longer pushrods when I replaced the old ones.

$60 in 1985 when I had the V8 cam ground is about $140 in 2017 dollars. Still a good deal, and I suspect I could get one done for about that around here.
Triple Jim is offline   Reply With Quote