Quote:
Originally Posted by SSDiv6
Schubecks have a history of catastrophic failures for many.
Your choices are NASCAR Nextel Tool Steel lifters with the DLC coating made by Trend, PPPC and Ferrea.
The PPPC tool steel lifter can be sent back to PPPC for resurfacing later on.
For your application, make sure to get a lifter for an AMC application since they have the proper pushrod oiling for a Chevy engine. Both Trend and PPPC make the oiling modification. Ferrea already has a modified lifter under P/N LF1004.
http://trendperform.com/b-94213-1149...rformance.html
https://www.pppcenter.com/06Catpgs/C5.pdf |
Thank you for the input, will definitely take this into consideration, all our schubeks ran this type of setup for correct oiling via the pushrod. How do these hold up in terms of spring pressures? What has been safely run with these seat/over the nose pressures? I have read that some these lifters have had issues with DLC coatings delaminating, however all seem to have been related to cast cores and wrong oils being used. Have coatings improved over the years?