Disaster strikes solid roller, possibly wiped out cam..

Reply Subscribe

Thread Tools

Search this Thread

Jun 5, 2006 | 04:04 PM

#21

Phil99vette

Thread Starter

7 Second Club

iTrader: (11)

Joined: Jul 2002

Posts: 8,758

Likes: 9

From: Port Tobacco, MD

I've got a custom set of pushrods being made right now. They are 3/8" with .125 walls.

Jun 5, 2006 | 07:40 PM

#22

DavidNJ

TECH Resident

Joined: Dec 2004

Posts: 881

Likes: 1

Can you get the lash my putting a different exhaust pushrod in that position?

Jun 5, 2006 | 07:45 PM

#23

Phil99vette

Thread Starter

7 Second Club

iTrader: (11)

Joined: Jul 2002

Posts: 8,758

Likes: 9

From: Port Tobacco, MD

Quote:

Originally Posted by DavidNJ

Can you get the lash my putting a different exhaust pushrod in that position?

Huh ?

Jun 5, 2006 | 07:58 PM

#24

LS1Formulation

12 Second Club

iTrader: (14)

Joined: Apr 2006

Posts: 3,890

Likes: 1,137

From: Grand Rapids, Michigan

He was asking if you could swap a different pushrod into that hole and get the correct lash.

Jun 5, 2006 | 08:18 PM

#25

orangeapeel

ЯєŧąяĐ Єl¡m¡иąŧøя ™

iTrader: (18)

Joined: Nov 2004

Posts: 16,083

Likes: 4

From: Justin, TX

I think that he might have meant "by"....

Jun 5, 2006 | 09:00 PM

#26

Slowhawk

LS1Tech Sponsor

iTrader: (12)

Joined: Nov 2001

Posts: 14,865

Likes: 6

From: Bridgewater,Ma

Quote:

Originally Posted by Phil99vette

I've got a custom set of pushrods being made right now. They are 3/8" with .125 walls.

Thats the best bet,then you should watch the lifter's for wear. Our race car runs 450lbs closed and we run the custom pushrods but the lifter's need replacing after about 25 runs.

Jun 5, 2006 | 09:51 PM

#27

Phil99vette

Thread Starter

7 Second Club

iTrader: (11)

Joined: Jul 2002

Posts: 8,758

Likes: 9

From: Port Tobacco, MD

Quote:

Originally Posted by Slowhawk

Thats the best bet,then you should watch the lifter's for wear. Our race car runs 450lbs closed and we run the custom pushrods but the lifter's need replacing after about 25 runs.

I'll keep an eye on it. I've got about 600 miles on the combo and the lifters show no wear.

Jun 5, 2006 | 11:31 PM

#28

DavidNJ

TECH Resident

Joined: Dec 2004

Posts: 881

Likes: 1

Yes, I meant 'by', not 'my'. My power supply went and I am using a laptop which I sometimes make mistakes on.

With your shaft rockers, you could use a double tapered pushrod. Do you know what size will fit? From the Manton catalog:

Quote:

Do not be over concerned about pushrod weight. The difference between a stock 5/16 diameter pushrod in a small block Chevrolet and a 7/16 to 3/8 tapered pushrod, represents a difference of approximately 2.5% of effective weight. This is because the pushrod is on the slow moving side of the valve train. The effective increase in weight between the two pushrods may be small but provides a huge increase in valve train stability. Remember the valve side of this valve train is the critical side where any weight savings will make marked improvements. No matter what we change, valve train stability is the goal.