What size of pushrods for ls6 cam

Reply Subscribe

Thread Tools

Search this Thread

Apr 27, 2005 | 11:55 AM

FILE

Thread Starter

TECH Senior Member

iTrader: (5)

Joined: Apr 2002

Posts: 7,277

Likes: 0

From: Truck Heaven

What size of pushrods for ls6 cam

I hear the base ciecle dia is smaller on the ls6 cam. Would stock pushrods work ok with this cam or would i need different size? This is going in a 4.8 and have not touched the heads.

Apr 27, 2005 | 10:04 PM

Keith

TECH Addict

Joined: Oct 2002

Posts: 2,793

Likes: 100

From: Mefis

T T T

Apr 27, 2005 | 11:20 PM

daryl2cb@yahoo.com

TECH Fanatic

iTrader: (2)

Joined: Jul 2004

Posts: 1,882

Likes: 0

From: Greensburg,PA

most likely 7.400 but I would seek second opinion. just guessing

Apr 27, 2005 | 11:31 PM

FILE

Thread Starter

TECH Senior Member

iTrader: (5)

Joined: Apr 2002

Posts: 7,277

Likes: 0

From: Truck Heaven

Reason ia m asking is because I already have some TR hardened 7.400's sitting in the garage. I am also leaning towards these but I just want to make sure.

Apr 28, 2005 | 12:12 AM

Dan_the_C5_Man

Launching!

Joined: Apr 2005

Posts: 205

Likes: 1

From: Atlanta area, GA

When I do mine, I'm going with Comp Cams 7.425". That is the "correct" way to make up the diff. in the base circle (unless you want to swap to the LS6 longer valves, that is..)

Others will chime in and tell you the diff. is not worth worrying about.

Apr 28, 2005 | 12:36 AM

Trans Am Kid

Staging Lane

Joined: Nov 2003

Posts: 78

Likes: 0

From: Bedford, TX

the differnce is .028 so you can use 7.4 or 7.425 either will work, but I used 7.4 and had the heads milled .028 when I ported them.

Apr 28, 2005 | 01:17 AM

PREDATOR-Z

TECH Senior Member

Joined: Mar 2004

Posts: 14,620

Likes: 17

From: BFE

Quote:

Originally Posted by Dan_the_C5_Man

Right on.
Some people have used the 7.40 but with non adjustable stock rockers that results in less preload and a little noisier valvetrain.
If you have the money get the 7.425s