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post #1 of 14 Old 03-02-2007, 09:09 PM Thread Starter
77 cj5
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258 Headers

I am new to the forum and jeeps. I just bought a stock 77 CJ5 with the 258 and I love it as a daily driver. The exhaust manifold has a leak so I figured I may as well go to a header if I am removing the manifold to replace the gasket. Pacesetter, Dynomax, Headman, Borla any rants or raves would be apreciated.
Jay

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post #2 of 14 Old 03-02-2007, 09:13 PM
BLS33
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I've heard great thing about borla headers, but if you dont want leaks stick with stock manifolds.
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post #3 of 14 Old 03-02-2007, 10:19 PM
8679cjs
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is that sound clip a 258? Sounds good for a 6!
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post #4 of 14 Old 03-02-2007, 10:59 PM
BLS33
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Quote:
Originally Posted by 8679cjs
is that sound clip a 258? Sounds good for a 6!
Tis not a 6, AMC 360. I used to have the 258 with hedmans and it sounded nice and as long as I tightened them every now and again they worked fine leak wise.
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post #5 of 14 Old 03-03-2007, 06:29 AM
CJ Chet
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I LOVE my Borlas. No problems with them!

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post #6 of 14 Old 03-03-2007, 06:42 AM
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Clifford Performance

Clifford 6 into 2. Great headers!! They specialize in straight six's.

'83 CJ-7 Renegade......258, Holley 390, Offy Intake, Clifford 6 into 2 Headers, Clifford Cam, Juicebox TFI, LUK Pro Gold Clutch, Flowmaster Hushpower II's, 4 row radiator, 20 gallon tank, and blazer heater motor so far!!
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post #7 of 14 Old 03-03-2007, 05:36 PM
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Stocks flow better.


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post #8 of 14 Old 03-04-2007, 02:05 PM
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I run Hedman's and they were a great upgrade from the stock manifold, IMO. Run a shop-built 2.5" cat/catback exhaust that is a perfect match.

'85 CJ-7 258 w/Hedman hedders, DUI ign, 2.5" cat/exhaust, Weber 32/36, T-176, Dana 300, Powertrax locker, 32/11.50 muds, Skyjacker 2.5" suspension, Warn 9500HS - a hunter, not a crawler
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post #9 of 14 Old 03-04-2007, 02:32 PM
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Headers will help you with the low end torque and that is what you feel in the seat of your pants when you hit the gas. The trick to headers and avoiding leaks from my experence is to check the torque on the bolts about every 10K miles... I did that on an Olds 455 with Headmans I had in my Cutlas and they never leaked, they did get loose but never blew out the gaskets.

'76 CJ5, 304-3 speed, 2.5" lift w/ 32x11.50's, Man. 4 wheel Drums and Man. Steering (LOTS OF FUN)
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"Americans love a winner. Americans will not tolerate a loser. Americans despise cowards. Americans play to win all of the time. I wouldn't give a hoot in hell for a man who lost and laughed. That's why Americans have never lost nor will ever lose a war; for the very idea of losing is hateful to an American." Patton's speech to the 3rd Army on the night before D-Day.
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post #10 of 14 Old 03-04-2007, 03:32 PM
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Quote:
Originally Posted by NCCJ5ER
Headers will help you with the low end torque and that is what you feel in the seat of your pants when you hit the gas. The trick to headers and avoiding leaks from my experence is to check the torque on the bolts about every 10K miles... I did that on an Olds 455 with Headmans I had in my Cutlas and they never leaked, they did get loose but never blew out the gaskets.
Actually headers don't help low end torque, if anything it may hurt it. Headers help in the higher RPM range, and not with torque but horse power.
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post #11 of 14 Old 03-04-2007, 04:04 PM
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He is correct in lsoing low end torque. I always ran Blackjacks and they were good held together and needed limited tightening. They were loud and obnoxious in my youth which was great then. I always have heard great things with Heddman and Borla 6 to 1 is the best set up to date.

85' CJ7 Laredo, 383 GM, Turbo 350, NP 203. SOA, 2" frame lift, 34" TSL swampers, Dana 30 open, AMC 20 w/ detroit locker, 4:10's, 1 Piece Mosers, 35" boggers to abuse when needed.
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post #12 of 14 Old 03-04-2007, 04:42 PM
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Good tuned headers WILL improve torque. Just depends on what design. Smaller tubes and 6 into 1 design = torque.
Bigger diameter tubes and 6 into two = less backpressure and better for high end. I have Borlas on my 4.2 and I could definitely tell the difference.

http://www.bigcitythunder.com/pages/...ng_exhaust.pdf

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Last edited by CJ Chet; 03-04-2007 at 05:20 PM.
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post #13 of 14 Old 03-04-2007, 08:58 PM
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Quote:
Originally Posted by CJ Chet
Good tuned headers WILL improve torque. Just depends on what design. Smaller tubes and 6 into 1 design = torque.
Bigger diameter tubes and 6 into two = less backpressure and better for high end. I have Borlas on my 4.2 and I could definitely tell the difference.

http://www.bigcitythunder.com/pages/...ng_exhaust.pdf


Most of the time you get just as much torque improvements as you do HP. It is just at no one sells the torque spec.

The ultimate conclusion here is that the headers are going to be an improvement over your stock system. You can't go wrong with hedman or borla, for the most part you get what you pay for.

'76 CJ5, 304-3 speed, 2.5" lift w/ 32x11.50's, Man. 4 wheel Drums and Man. Steering (LOTS OF FUN)
'01 Silverado CC/SB 2500HD Dmax 4X4

"Americans love a winner. Americans will not tolerate a loser. Americans despise cowards. Americans play to win all of the time. I wouldn't give a hoot in hell for a man who lost and laughed. That's why Americans have never lost nor will ever lose a war; for the very idea of losing is hateful to an American." Patton's speech to the 3rd Army on the night before D-Day.
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post #14 of 14 Old 03-05-2007, 08:00 PM Thread Starter
77 cj5
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Thanks for all the input looks like a headman header is in my future.
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