Rocker Arm Question

Reply Subscribe

Thread Tools

Search this Thread

Nov 16, 2004 | 08:18 PM

Epyon127

Thread Starter

Instructor

Joined: Mar 2003

Posts: 176

Likes: 0

From: Holtsville NY

Rocker Arm Question

Is there any significant gain or improvement for a street car to install Shaft mount rocker arms over CC Pro Mags or High Techs?

Pro Mags are around $265
Hi Tech's are around $340
Jesel Sportsman are around $695

Is it worth it?

Nov 16, 2004 | 08:29 PM

smokiethegreat

Intermediate

Joined: Oct 2004

Posts: 42

Likes: 0

i dont see it being worth the price diffrence unless you plan on spinning you eng to extreme rpm's. i would rather take that extra $$$ and spend it elsewhere and get more out of the cash.

Nov 16, 2004 | 08:34 PM

Nathan Plemons

Race Director

Joined: May 2001

Posts: 14,165

Likes: 9

A shaft system would be a real pain on a street car with very few other mods. Granted it would be extrememly solid but you'd have a hard time getting them to clear the valve covers, etc. The headaches probably won't be worth the extra cost.

Upgrade to 7/16 studs and you're really good to at least 7k RPM's with a good quality stud mounted rocker.

Nov 16, 2004 | 08:40 PM

Muffin

Race Director

Joined: Jun 1999

Posts: 14,924

Likes: 9

From: Merritt Ils Fl

The SBC ran for years winning many races and/or going thousands of miles with stamped rockers. I, like most folks, invested in roller rockers as my first bolt-on mod. I have often wondered just how much I gained.

Nov 16, 2004 | 09:23 PM

cv67

Team Owner

Joined: Oct 2004

Posts: 81,241

Likes: 3,062

From: altered state

St. Jude Donor '05

Not unless it a high winding motor w/ lots of spring pressure. Have them on my '67. Figured with 500 lbs springs and .670 lift it might help.

Nov 16, 2004 | 09:29 PM

silver & red CE

Melting Slicks

Joined: Jan 2000

Posts: 3,418

Likes: 1

From: NW Chicago Suburbs

Are the Jessels made to take 100K miles of abuse?

Nov 16, 2004 | 09:41 PM

cv67

Team Owner

Joined: Oct 2004

Posts: 81,241

Likes: 3,062

From: altered state

St. Jude Donor '05

I don't know. Without rebuilding them, I doubt it. My motor has yet to be fired. Maybe some vets around here have some input.

Nov 16, 2004 | 10:02 PM

65Z01

Team Owner

Joined: Dec 2000

Posts: 90,675

Likes: 304

From: SE NY

Cruise-In II Veteran

:igree:
Upgrading to 7/16" studs would seem like the way to go for a street engine.

If you want a few hundred more RPM without increasing spring tension, install Ti ($$) retainers with 10deg locks.