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CC Advertisers
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10-03-2003, 12:21 PM
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CC Member
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Join Date: Jun 2003
Location: Carson City, NV,
Posts: 12
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Not Ranked
Erson Roller Rockers for Edelbrock Heads
When I designed the Erson roller rockers, the Edelbrock FE heads were just getting started so I designed the rockers to fit standard 390/428 heads. They can be used on Edelbrock and 427 heads but they must be taken apart and shims moved around in order to match the valve spacing of the Edelbrock/427 heads.
Because so many people are now using Erson rockers on Edelbrock heads, we have released a new part number with the rockers already adjusted for Edelbrock/427 heads:
Rockers for Edelbrock/427 heads: E918503
Rockers for standard 390/428 type heads: E918502
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Advertising
04-15-2007, 02:30 PM
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CC Member
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Join Date: Jul 2003
Location: Los Angeles,
CA
Cobra Make, Engine: AC Frua, FE Side Oiler
Posts: 128
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Not Ranked
How good are the Ersons?, I use original 427 and 428 rockers in my cars!
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04-15-2007, 02:48 PM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
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Not Ranked
The Ersons are probably the best....next to T&D's.
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04-15-2007, 02:51 PM
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Super Moderator
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Join Date: May 2001
Location: Fresno,
CA
Cobra Make, Engine: KMP 184/482ci Shelby
Posts: 14,445
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Not Ranked
T&Ds...what I have. Muy goodo IMO.
__________________
Jamo
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04-15-2007, 02:56 PM
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CC Member
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Join Date: Jul 2003
Location: Los Angeles,
CA
Cobra Make, Engine: AC Frua, FE Side Oiler
Posts: 128
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Not Ranked
What are T&Ds'?
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04-15-2007, 03:06 PM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
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Not Ranked
It's a brand of roller rockers. Instead of using the regular studs that usually hold the shafts down, they use the head fasteners. Very high quality and very stout.
The Ersons are rated for spring pressures of 800 lbs.
If you ever plan to use a solid roller cam with spring pressures over 500 lbs or so, you'll see how factory shafts and hardware hold up.
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04-15-2007, 03:08 PM
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CC Member
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Join Date: Jul 2003
Location: Los Angeles,
CA
Cobra Make, Engine: AC Frua, FE Side Oiler
Posts: 128
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Not Ranked
To they fid in the stock valve covers? and what does T&D stand for?
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04-15-2007, 03:10 PM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
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Not Ranked
They will fit in most valve covers. I guess it depends on what you have. I have a buddy with a set and they fit under the chrome pentroof valve covers.
To be honest, I don't know what T&D stands for.
http://www.clubcobra.com/photopost/s...0&ppuser=12166 |
04-15-2007, 03:13 PM
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CC Member
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Join Date: Jul 2003
Location: Los Angeles,
CA
Cobra Make, Engine: AC Frua, FE Side Oiler
Posts: 128
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Not Ranked
Awsome, great, thanks!
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04-15-2007, 04:03 PM
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CC Member
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Join Date: Jan 2002
Location: Fairmont,
WV
Cobra Make, Engine: PPMC 427 SO
Posts: 82
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Not Ranked
I have over 8000 miles on mine and just one adjustment around 500 miles.
They are excellent rockers.
__________________
Jim Cinalli 
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04-15-2007, 05:33 PM
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Senior Club Cobra Member
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Join Date: Aug 1999
Location: Carlsbad,
CA
Cobra Make, Engine: Previous owner of SPF#1938, with a Keith Craft 496ci Genesis 427 side oiler, 667 FWHP, 633 FWTQ, 560 RWHP, 550 RWTQ.
Posts: 1,303
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Not Ranked
T&D Machine Products is the name of the company. Here's a link to their WEB site: http://www.tdmach.com/
What exactly T&D stands for is a good question. Probably the initials for the pricipals in the company. Larry Tores is the name of the President so maybe the T stands for Tores.
__________________
Jim Woodard
Don't interfere with somethin' that ain't botherin' you none.
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04-15-2007, 07:17 PM
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Senior Club Cobra Member
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Join Date: Feb 2004
Location: Sacramento,
CA
Cobra Make, Engine: Shelby CSX4795 (Sold)
Posts: 1,542
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Not Ranked
Look Good!
Ersons run well and they look good to!
jdog 
__________________
"If you can't run with the BIG DOGS, stay under the porch!"
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04-16-2007, 02:53 PM
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CC Member
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Join Date: Oct 2001
Location: Tolland,
CT
Cobra Make, Engine: Building ERA #749 427 Cobra
Posts: 80
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Not Ranked
RobbMc
When are these assemblies going to be available? Both Jegs and Summit say "no such thing, they most likely aren't released yet".
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04-16-2007, 03:11 PM
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CC Member
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Join Date: Dec 2006
Location: Millbrook,
NY
Cobra Make, Engine: ERA 758 KC Pond 482
Posts: 391
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Not Ranked
Keith Craft and Flatlander have them available among others I'm sure. They've been out for a while. I think they're around $650 a set.
Bob
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04-16-2007, 04:39 PM
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Senior Club Cobra Member
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Join Date: Feb 2007
Cobra Make, Engine: KMP 539, a Ton of Aluminum
Posts: 9,591
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Not Ranked
I believe the T&D's are about $1,300.
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04-16-2007, 04:42 PM
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Senior Club Cobra Member
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Join Date: Feb 2007
Cobra Make, Engine: KMP 539, a Ton of Aluminum
Posts: 9,591
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Not Ranked
I should also say that the Viper owners swear by them (T&D's).
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04-16-2007, 05:56 PM
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Senior Club Cobra Member
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Join Date: Jan 2001
Location: Santa Barbara, Ca.,
ca
Cobra Make, Engine: R.U.C.C. with a 427FE, toploader
Posts: 1,435
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Not Ranked
Quote:
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Originally Posted by RodKnock
I should also say that the Viper owners swear by them (T&D's).
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There is one more reason to run Ersons 
__________________
Mike Z
Nothing sucks more than that moment during an argument when you realize you’re wrong. 
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04-19-2007, 05:00 AM
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CC Member
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Join Date: Mar 2001
Location: E BRUNSWICK N.J. USA,
Posts: 3,841
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Not Ranked
Rockers
T&D are great and need about $300.00 of head work to machine the mounting pads flat for the assembly. Jesel also makes a great setup about the same price. Which Ersons fit the Shebly heads? What number? Rick L
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04-19-2007, 06:01 AM
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CC Member
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Join Date: Dec 2000
Location: Broken Arrow. OK ( South Tulsa), USA,
OK
Cobra Make, Engine: 66 COBRA FE 427 /4SP. (HCS Coupe w/ 408 Stroker and TKO 600 -sold)
Posts: 5,595
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Not Ranked
I have had mine (Sig Erson) for about 5 years and they have been a great investment. Easy to adjust and reliable. Believe it or not they actually cooled my oil by about 10 degrees. But, that was my old 428 engine. The 427 has the opposite problem (I have trouble getting my oil hot enough, 220 or 230 deg is what I would like to see).
__________________
Sunshine, Asphalt and no stop signs...Perfect
"Let's roll"
"Be part of Something Good
......Leave Something Good Behind!"
from CD "Long Road Out of Eden"
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04-19-2007, 07:32 AM
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CC Member
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Join Date: Nov 2003
Location: Fresno,
CA
Cobra Make, Engine: Shelby CSX 4766 (Vegas Built) with 482 Aluminum Pond motor
Posts: 814
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Not Ranked
Clois,
I consider that hot for oil, I normally like to see the oil temp around 190-200. I also have the same problem. Takes forever to get the oil temp up. And that is in Fresno CA.
__________________
Morgan LeBlanc
Fresno CA
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