Lifters - Comp Pro Mag vs LS7

Reply Subscribe

Thread Tools

Search this Thread

Mar 11, 2013 | 05:52 PM

2001CamaroGuy

Thread Starter

TECH Veteran

iTrader: (6)

Joined: Feb 2002

Posts: 4,766

Likes: 0

From: Phoenix, AZ USA

Lifters - Comp Pro Mag vs LS7

What's the advantages/disadvantages to each (LS7 vs Comp 875-16 Pro Magnum lifters)? I have a brand new set of Comp Pro Mags that I was given, however I'm trying to decide if I should use them or go with LS7 lifters. I will be using the factory non-adjustable rockers and doing something like a TR Torquer 3 cam and PRC dual springs. 7000RPM max.

Mar 11, 2013 | 06:25 PM

Tainted

TECH Senior Member

iTrader: (9)

Joined: Mar 2006

Posts: 8,425

Likes: 2

From: Indianapolis

Anything is an upgrade over the ls7s just about.

Mar 11, 2013 | 06:38 PM

litle88

12 Second Club

iTrader: (20)

Joined: Jan 2007

Posts: 2,561

Likes: 4

From: Burbank, Illinois

Here is what I would personally go with.

http://www.briantooleyracing.com/btr...r-lifters.html

Mar 11, 2013 | 10:24 PM

2001CamaroGuy

Thread Starter

TECH Veteran

iTrader: (6)

Joined: Feb 2002

Posts: 4,766

Likes: 0

From: Phoenix, AZ USA

I thought people were really liking the LS7 lifters. What's wrong with them?

As I said, I have brand new Comp pro mags. Any reason to not use these?

Mar 11, 2013 | 10:27 PM

Tainted

TECH Senior Member

iTrader: (9)

Joined: Mar 2006

Posts: 8,425

Likes: 2

From: Indianapolis

Quote:

Originally Posted by 2001CamaroGuy

I thought people were really liking the LS7 lifters. What's wrong with them?

As I said, I have brand new Comp pro mags. Any reason to not use these?

Ls7 lifters just cant keep up with aftermarket cam lobes and high stress loads. That have a high failure rate whether its because of install error, quality control, or just not cut out for the task.

For a factory lifter they are decent but they leave a lot to be desired.

Mar 11, 2013 | 11:00 PM

JakeFusion

Super Hulk Smash

iTrader: (7)

Joined: Aug 2004

Posts: 11,258

Likes: 146

From: Pace, FL

The 875s "Comp R" are okay, but they have a very narrow preload window. They are more trouble than they are worth, but are an upgrade over the LS7s.

Mar 14, 2013 | 07:36 AM

MertezWS6

On The Tree

iTrader: (8)

Joined: Mar 2011

Posts: 149

Likes: 0

From: Maplewood, MN

Bump! I'm a believer in doing it once and doing it right and I'm in the hunt for lifters. litle88 I like those lifters you showed, I assume they will fit in LS2 lifter trays? Anyone else have any preference on lifters if they wont go with LS7's????