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HP HUNTER · 05-16-2017, 09:32 AM

Shimming the hyd lifter to .010 on my Buick 315/455 was worth 12 HP and carried the power out past the peak much better and the engine was happier. Spring pressure was 170/350. I opted to stay with the hyd lifter only because it was living nicely with my cam, if that wasn't the case I would be running a solid lifter.

05-16-2017, 09:32 AM	#6
HP HUNTER Senior Member Join Date: Feb 2012 Location: Colorado Springs Colorado/Thousand Oaks Ca Posts: 606 Likes: 68 Liked 238 Times in 97 Posts	Re: Shimming Hydraulic Flat Tappet Lifters Shimming the hyd lifter to .010 on my Buick 315/455 was worth 12 HP and carried the power out past the peak much better and the engine was happier. Spring pressure was 170/350. I opted to stay with the hyd lifter only because it was living nicely with my cam, if that wasn't the case I would be running a solid lifter. Last edited by HP HUNTER; 05-16-2017 at 09:35 AM.