valve train upgrade

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May 4, 2009 | 07:37 AM

tballs

Thread Starter

Intermediate

Joined: May 2006

Posts: 38

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valve train upgrade

Hi,

I would like to upgrage my valve springs, roller rockers & push rods on my Procharged C5.

Can anyone suggest a good setup and where to buy?

Thanks

Tballs

May 4, 2009 | 07:49 AM

Eric D

Tech Contributor

Joined: May 2008

Posts: 2,843

Likes: 16

From: Howell Michigan

St. Jude Donor '09-'10-'11

Did you replace the stock cam? How many miles on this engine?

May 4, 2009 | 09:59 AM

BLOWNBLUEZ06

Tech Contributor

Joined: Apr 2007

Posts: 10,924

Likes: 78

From: Forney Texas

Texas Speed for PRC springs, titanium retainers, hardened pushrods and Yella-Terra rockers.

May 4, 2009 | 11:42 AM

tballs

Thread Starter

Intermediate

Joined: May 2006

Posts: 38

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no still stock cam added logtubes and met inj. procharger 8 psi boost

May 4, 2009 | 11:43 AM

tballs

Thread Starter

Intermediate

Joined: May 2006

Posts: 38

Likes: 0

thanks

May 4, 2009 | 11:44 AM

tballs

Thread Starter

Intermediate

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Posts: 38

Likes: 0

forgot 30k on engine

May 4, 2009 | 12:14 PM

vettenuts

Team Owner

Joined: Mar 1999

Posts: 22,025

Likes: 192

From: At the beach in little Rhody

If there are no valve train issues now, PAC 1518 springs & stock rockers.

May 4, 2009 | 12:19 PM

Eric D

Tech Contributor

Joined: May 2008

Posts: 2,843

Likes: 16

From: Howell Michigan

St. Jude Donor '09-'10-'11

Quote:

Originally Posted by tballs

no still stock cam added logtubes and met inj. procharger 8 psi boost

In my opinion as long as you are not exceeding the original engine rpm red line and with only 30K miles I would put the money to better use for some other upgrades. With that said, if you plan on changing to a more aggressive cam or going high on engine rpm then up grading the valvetrain could be a good choice. The money might be better spent on upgrading differential output shafts, or maybe DTE differential strut kit.

Have fun with the new SC!!

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May 4, 2009 | 03:43 PM

K RIPPER

Burning Brakes

Joined: May 2008

Posts: 1,147

Likes: 1

From: Mohegan Lake New York

IMHO Good valve springs are pretty important on a supercharged engine if they bounce on the seat or you get into a little valve float under boost could be trouble other posters are quite right should be ok but eventually your gonna need 'em,buy 'em now for peace of mind or just be careful w/boost levels are don,t over-rev it....just my $.02

May 5, 2009 | 09:05 AM

#10

Blu

Melting Slicks

Joined: Dec 2005

Posts: 2,074

Likes: 0

From: Charlotte NC

Quote:

Originally Posted by vettenuts

If there are no valve train issues now, PAC 1518 springs & stock rockers.

May 5, 2009 | 09:54 AM

#11

lucky131969

Tech Contributor

Joined: Jan 2007

Posts: 19,343

Likes: 1,123

From: Dyer, IN

Quote:

Originally Posted by tballs

Hi,

I would like to upgrage my valve springs, roller rockers & push rods on my Procharged C5.

Can anyone suggest a good setup and where to buy?

Thanks

Tballs

Patriot Golds, and hardened push rods here...stock rockers(for now).

Really cheap insurance.....do it

Last edited by lucky131969; May 5, 2009 at 09:56 AM.

May 5, 2009 | 03:29 PM

#12

Numb

Instructor

Joined: Nov 2005

Posts: 228

Likes: 0

From: Austin Texas

Quote:

Originally Posted by K RIPPER

I agree, and that applies to NA motors as well. The factory LS6 valve springs are ticking timebombs. The one in the picture below let go cruising on the highway in 6th gear, 70mph. I'm running Comp 921's now.

May 5, 2009 | 04:17 PM

#13

black98c5

Safety Car

Joined: Jul 2005

Posts: 4,205

Likes: 2

From: Chicago-NW Burbs Illinois

I would definitely get some dual springs. Patriot Golds or Extremes are a great option. I went with the Extremes, but I'll be running a healthy cam with my Procharged set-up.

May 5, 2009 | 04:19 PM

#14

RBRBRNR

Instructor

Joined: Oct 2008

Posts: 137

Likes: 1

From: Wisconsin

Quote:

Originally Posted by black98c5

I would definitely get some dual springs. Patriot Golds or Extremes are a great option. I went with the Extremes, but I'll be running a healthy cam with my Procharged set-up.

only difference is I went with the Harland Sharp set up. Either way...good advice

May 5, 2009 | 04:24 PM

#15

sunchaser73

Racer

Joined: Apr 2009

Posts: 488

Likes: 2

From: Myrtle Beach SC

I run Comp 921 springs, Smith Brothers 5116 series pushrods (intake), Comp 7609 pushrods (exhaust), stock lifters and rockers. This setup seems to work well and I'm happy with the results...

I had some wicked valve float at the hands of a very aggressive cam and a set of Patriot Gold springs...they couldn't stand up to the cam, and I had to replace a valve as a result.

My advice is to do your homework very thoroughly...find out what others (with similar engine configuration) are running, "horror" stories, success stories...and check with a reputable Corvette shop, too.

May 6, 2009 | 10:14 AM

#16

Eric D

Tech Contributor

Joined: May 2008

Posts: 2,843

Likes: 16

From: Howell Michigan

St. Jude Donor '09-'10-'11

Quote:

Originally Posted by Numb

What model year was your engine and was it completely stock when this occurred?

I can't tell from your photo, but do you recall what color spring or stripe was on your springs?

May 6, 2009 | 10:55 AM

#17

0HinsonSuperCars

Former Vendor

Joined: Feb 2007

Posts: 17,337

Likes: 39

From: Birmingham, AL www.hinsonsupercars.com 205-909-9402

Quote:

Originally Posted by tballs

Hi,

I would like to upgrage my valve springs, roller rockers & push rods on my Procharged C5.

Can anyone suggest a good setup and where to buy?

Thanks

Tballs

We have used the Patriot Xtreme Dual Valve Springs in many forced induction setups with great success.

Patriot Performance Xtreme .660" Dual Spring Kit $270

Yella Terra Ultralite Shaft Mount Non-Adjustable Roller Rocker 1.7 Ratio (LS1/LS2) $450

Comp Cams Magnum Chromemoly Pushrods $99.99

Seth

May 6, 2009 | 02:04 PM

#18

K RIPPER

Burning Brakes

Joined: May 2008

Posts: 1,147

Likes: 1

From: Mohegan Lake New York

Quote:

Originally Posted by HinsonSuperCars

thinking 'bout upgrade myself recommended spring, what is the seat pressure also gonna upgrade to titanium retainers ; keepers are so tiny and so important in the old days we used machined keepers whats the recommended keeper used today; gonna use springs on stock ls6 cam when I cam up most likely new springs at that time also, my goal is rock solid reliability.On all my previous street/strip cars I used full roller rockers(cast and extruded)screw in studs and stud girdle I don't think I need a girdle on my Ls6 as the design diff. on the later model heads ...Opinion??

May 6, 2009 | 04:46 PM

#19

WKMCD

Race Director

Joined: Dec 2004

Posts: 13,760

Likes: 75

From: Haymarket VA

Have Harland Sharp mod the stock rockers, PAC 1518 springs (nitrited for much longer life) and Manton 11/32 pushrods and not worry about it for many many miles.

May 6, 2009 | 04:54 PM

#20

Blu

Melting Slicks

Joined: Dec 2005

Posts: 2,074

Likes: 0

From: Charlotte NC

Quote:

Originally Posted by WKMCD

Have Harland Sharp mod the stock rockers, PAC 1518 springs (nitrited for much longer life) and Manton 11/32 pushrods and not worry about it for many many miles.

There is no need, you should know by now that either Patriot duals or PRC duals are the best ever on these forums. Why would someone pay more for a beehive thats lighter, stronger, longer lasting and their steel retainers being lighter than the other options "ti" retainer. No one cares about valvetrain weight its over rated.

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