Xtremejr
Member
Hold my beer and watch this shit.
Posts: 493
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Post by Xtremejr on Aug 6, 2016 17:41:24 GMT -5
Im looking for reccomedations on bolt up headers and exhaust. Car is a driver so if its loud im ok with that. Dont want to break the bank though. Any suggestions will be appreciated.
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Post by dolzinnig on Aug 18, 2016 11:14:33 GMT -5
I ended up going with what appears to be Hooker replicas. They might even be Hookers, but they don't have anything stamped on them. Got them from a member here (Brian). They fit really well, but I wouldn't go as far as to say they were "bolt-up". Installation wasn't terrible, but we had to pull the starter, lift the engine a little on the driver's side, and use a large pipe to fine-tune it... etc. If I remember correctly, they hit on the upper A-arm just barely, so rather than cut the A-arm we dimpled the header. (tiny dimple).
They sound great connected to 2 1/2" dual pipes through 2-chamber Flowmasters. Will know better once I get it out on the road later this year.
I am quite sure they are the exact same as the Hooker 3902HKR. That would be my suggestion. Under $300 at Summit or Jegs.
Good luck,
Grant
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Xtremejr
Member
Hold my beer and watch this shit.
Posts: 493
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Post by Xtremejr on Aug 21, 2016 11:15:04 GMT -5
Hok3902 are the exact same as i was looking at however want to run 3" but it dosent state if they have 3". But they seem to have 3" if you buy the super comp headers hok2220, few hundred bucks more.
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Post by BR[] on Aug 21, 2016 18:33:33 GMT -5
Flange size is important, but fitting without having to flatten the tubes to get the right fit is MORE important. Especially if they are ceramic coated.
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Deleted
Deleted Member
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Post by Deleted on Oct 28, 2016 18:31:33 GMT -5
I picked up a pair of new chrome headers on ebay for under $200, just like any other of headers I have used in my chevy, Pontiac , or olds they did need a fair amount of "massaging" to fit thr frame especially the drivers side .Only $200 , they look great, sound great but definitely use the good copper type gaskets they are much better.
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Post by sascha on Oct 29, 2016 16:33:34 GMT -5
I have been running quite a choice of engines, among them 455`s with healthy cams and heads, and in my opinion, headers are a waste of money for a street car.
My 71 w-30 has been running 12.70 with stock exhaust system that was just cleaned from all rough edges, opening up some spots as far as possible in combination with a 2 1/2 inch front to rear exhaust system.
So a 400 cu inch can make it easily with some stock manifolds.
The tires are anyway going up in smoke long before the exhaust system is collapsing if you have some compression and the engine is set up right.
At least for street driving...
Sascha
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Post by joepadavano on Oct 30, 2016 8:49:18 GMT -5
I have been running quite a choice of engines, among them 455`s with healthy cams and heads, and in my opinion, headers are a waste of money for a street car. My 71 w-30 has been running 12.70 with stock exhaust system t The individual runner W/Z manifolds on the 1969-up BBO cars are close to the performance of headers. Do not confuse these with the crappy open log style manifolds used on the 1968-earlier cars. The difference will be more dramatic in that case. Of course, your 12.70, while a strong number, is meaningless without a back-to-back comparison with headers on the same engine at the same weather conditions. Real tests have repeatedly shown about a 15-20 HP increase with headers, ASSUMING the rest of the engine is set up to take advantage of the additional airflow. |
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Post by sascha on Nov 20, 2016 5:18:53 GMT -5
I agree that the individual runner cast iron exhaust W/Z manifolds will be better than the 68 and previous, and I agree also that headers may give a performance advantage to cast iron manifolds.
My opinion is, that most of the time this is of little relevance when driving a car on the street. With a healthy engine you will overcome the grip of the tires with or without headers in most driving situations. And I personally hate installing headers, cause it`simply to narrow in an olds, always troublesome
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Deleted
Deleted Member
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Post by Deleted on Nov 20, 2016 20:46:48 GMT -5
I have been running quite a choice of engines, among them 455`s with healthy cams and heads, and in my opinion, headers are a waste of money for a street car. My 71 w-30 has been running 12.70 with stock exhaust system that was just cleaned from all rough edges, opening up some spots as far as possible in combination with a 2 1/2 inch front to rear exhaust system. So a 400 cu inch can make it easily with some stock manifolds. The tires are anyway going up in smoke long before the exhaust system is collapsing if you have some compression and the engine is set up right. At least for street driving... Sascha Nov 20, 2016 4:18:53 GMT -6 sascha said: I agree that the individual runner cast iron exhaust W/Z manifolds will be better than the 68 and previous, and I agree also that headers may give a performance advantage to cast iron manifolds. My opinion is, that most of the time this is of little relevance when driving a car on the street. With a healthy engine you will overcome the grip of the tires with or without headers in most driving situations. And I personally hate installing headers, cause it`simply to narrow in an olds, always troublesome Agree |
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