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6/1/10 1:27am - Original Message: 'Header Installation'
rod7515 Lifetime Member
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Red Lion, PA - USA

1974 White 350 Corvette, TH400 Automatic 1972 Tangerine /Go Mango Convertible 383 Stroker, 2004r Automatic

Joined: 10/27/2006
Posts: 1180
tonight I decided it was time to install my headman headers on my 74 automatic trans 350 engine. I have had them since last April. I put the car on a rack and removed the bolts for the manifolds. Had to cut the extension pipes because the previous owner had exhaust installed and they welded 2 spots on each connection about 3/4 inch. once the pipes were off i unbolted both manifolds and lifted out. Placed the new header gaskets in water like i had read about on this forum, then removed spark plugs and oil switch on drivers side. had to also remove the valve covers because they are the tall style and the header was hitting the one on the drivers side. then the drivers side fell right into place and was tightened up. the passenger side wouldnt go in from the top but fit very nice from underneath. bolted it tight and tomorrow night i will reinstall the plugs and wires and fire it up.
From start to finish tonight was only 2 hours. Didnt expect it to go that well!
Have an appointment thursday to have the extension pipes made and that will put me one more step closer to completion. I wonder how many steps there are in completion on a corvette?? 
Just wanted to thank everyone in this group for all your help over the past 2 years. Your help has been greatly appreciated!


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6/1/10 8:06am - Reply: 'Header Installation'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19507
[quote=rod7525]I wonder how many steps there are in completion on a corvette?? [/quote]

You're assuming there ever IS a completion...
Nice job, and glad to hear you didn't run into any major snafus!! Beer
Adams' Apple2010-06-01 05:07:17

Joel Adams
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6/1/10 8:16am - Reply: 'Header Installation'
Okie Dude Lifetime Member
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Eastern Oklahoma County, OK - USA

1980 Black L48 T-Tops

Joined: 1/3/2006
Posts: 1560
Great to hear they went well!  When I put the factory rams horn headers on with the side pipes, I blew out the passenger side donut three or four times before getting everything all lined out nice and straight.

Be careful if you are going to run them open header to the shop.  Don't rev on her, especially when cold.  Wouldn't want to suck a valve...

Dennis Smith
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6/1/10 11:41am - Reply: 'Header Installation'
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Mounds View, MN - USA

70 LT1 coupe, 69 350 HP coupe, 69 390HP 427 coupe, 71 LS5 convert, 85 coupe, 93 coupe

Joined: 5/24/2007
Posts: 1031
I am old enough to remember when Hedman Hedders were the cheap alternative to good quality headers.  Now they are one of the leaders in quality and fit.


Corvette Specialties is your best source for Corvette parts, accessories and gifts. www.CorvetteSpecialties.com


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6/1/10 10:05pm - Reply: 'Header Installation'
ranger3 Lifetime Member
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North Charleston, SC - USA

1975 L48 AT AC T-top

Joined: 3/20/2004
Posts: 4176
I remember that too. My dad had headers on everything and he always said that Hedman's were cheap. Funny how things change.


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