Quote:
Originally Posted by frankwjr
 pretty sure LS lifters ride in their GUIDES! soo, clean up any rough areas to remove any lose metal and clean the block like a mofo...good luck OP and if I'm wrong I want somebody to explain why... |
The top rides in the guide, bottom in the block. In the lifter bore they need about .0012" to .0014" give or take a few ten thousandths. That precision fit controls oil pressure to the mains. Loose lifters in tore up lifter bores will destroy the main and rod bearings in an LS motor.
It would be like putting a hole in your garden hose, and wondering why not much comes out the sprayer.