push rods
Race Director
Joined: Mar 2011
Posts: 13,262
Likes: 3,151
From: SW Florida
2021 C6 of the Year Finalist - Modified
There must be some advantage to using a short travel lifter, but I have never had any problems at all with standard lifters.
The deal is ... because there is such a short amount of available travel for the so-called 'short travel lifter's' internal plunger to travel within the bore of the lifter, setting the correct lifter preload is critical (you don't have much to work with).
However, the available plunger travel in an OEM lifter is right at .200" (200 thousands of an inch), setting the lifter preload is much less critical. Lifter preload for an OEM lifter can be anywhere between about .040" to .130" (and that is a lot of leeway to work with).
Personally, I will stick to valve lifters that have the .200" total plunger travel available to me.
The deal is ... because there is such a short amount of available travel for the so-called 'short travel lifter's' internal plunger to travel within the bore of the lifter, setting the correct lifter preload is critical (you don't have much to work with).
However, the available plunger travel in an OEM lifter is right at .200" (200 thousands of an inch), setting the lifter preload is much less critical. Lifter preload for an OEM lifter can be anywhere between about .040" to .130" (and that is a lot of leeway to work with).
Personally, I will stick to valve lifters that have the .200" total plunger travel available to me.
Thread Starter
Burning Brakes
Joined: Jun 2009
Posts: 1,135
Likes: 226
From: Roanoke Indiana
