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Can i get Performance gain without head work?
https://www.slantsix.org/forum/viewtopic.php?t=3552		 Page 1 of 1
Author:  70Valiant [ Thu May 02, 2002 9:27 am ]
Post subject:  Can i get Performance gain without head work?
Hello all,
I was wanting to give my 198 slant a little more power. My plan is to get a 4bbl intake and carb, Header, Open element air filter and electronic ignition. Most people say that i will notice a nicec power gain just with that. Others say I need head work to notice a power difference. What are your opinions?

nlguzman@earthlink.net
Author:  brokenmachine [ Thu May 02, 2002 9:34 am ]
Post subject:  Re: Can i get Performance gain without head work?
You will most likely notice a performance gain, but if you ask me headers and intake are a waste without proper headwork and a good camshaft... its like breathing through a funnel through a straw... there is still a lot of restriction. =D
Author:  Dart270 [ Thu May 02, 2002 1:45 pm ]
Post subject:  Re: Can i get Performance gain without head work?
Quote:
: Hello all,
: I was wanting to give my 198 slant a little
: more power. My plan is to get a 4bbl intake
: and carb, Header, Open element air filter
: and electronic ignition. Most people say
: that i will notice a nicec power gain just
: with that. Others say I need head work to
: notice a power difference. What are your
: opinions?


You will see a substantial gain, but your car will not be "fast". Expect 0.5-1 sec improvement over stock with a well-tuned header and 2 or 4 bbl with a nice intake.

Lou
Author:  Will [ Sat May 04, 2002 1:55 pm ]
Post subject:  Re: Can i get Performance gain without head work?
I was able to get my 68 dart to go 14.90's befor any head work. Full body all steel, all interior, 410's and slicks.

Will
Quote:
: Hello all,
: I was wanting to give my 198 slant a little
: more power. My plan is to get a 4bbl intake
: and carb, Header, Open element air filter
: and electronic ignition. Most people say
: that i will notice a nicec power gain just
: with that. Others say I need head work to
: notice a power difference. What are your
: opinions?



slantsix@netzero.net
Author:  Doctor Dodge (Doug Dutra) [ Sat May 04, 2002 9:40 pm ]
Post subject:  Re: Can i get Performance gain without head work? *PIC*
Quote:
: Hello all,
: I was wanting to give my 198 slant a little
: more power. My plan is to get a 4bbl intake
: and carb, Header, Open element air filter
: and electronic ignition. Most people say
: that i will notice a nice power gain just
: with that. Others say I need head work to
: notice a power difference. What are your
: opinions?


Alway remember that a SL6 head ports and valve sizes were designed for a 170, so using a "unported" head on a 198 is not as bad as using one on a 225.
There is no reason you should not go-in and do a small amount of port and pocket work, this help even with stock size valves.
DD

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