ls1 lifter preload

Reply Subscribe

Thread Tools

Search this Thread

Nov 1, 2013 | 02:42 PM

pewetrss

Thread Starter

Teching In

Joined: Nov 2013

Posts: 1

Likes: 0

ls1 lifter preload

Replaced the lifters in my stock ls1. Looking for correct preload order found a few references but wanted to make sure. Does it start with intake valves on 8 < > 6. Then moving on.

Nov 1, 2013 | 04:24 PM

vettenuts

TECH Senior Member

iTrader: (4)

Joined: Jul 2004

Posts: 8,092

Likes: 13

From: Little Rhody

I assume you mean this is a stock setup and you are re-installing the rocker arms. If so, here is the GM procedure:

Nov 1, 2013 | 04:40 PM

Bilster

TECH Regular

iTrader: (21)

Joined: Nov 2007

Posts: 413

Likes: 0

From: Albuquerque, New Mexico

Quote:

Originally Posted by pewetrss

Replaced the lifters in my stock ls1. Looking for correct preload order found a few references but wanted to make sure. Does it start with intake valves on 8 < > 6. Then moving on.

The stock LS valve train is not adjustable so lifter preload is set. If you didn't make any changes to your motor such as milling the head, then follow the procedure vettenuts posted and your good. If you did some valve train modifications, then you might have to get different length pushrods to adjust preload depending on what mods you did.