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Re: How much to build 440?
[Re: Fern]
#1708534
03/28/15 03:01 PM
03/28/15 03:01 PM
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Joined: Feb 2005
Posts: 4,310
Prospect, PA
BSB67
master
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master
Joined: Feb 2005
Posts: 4,310
Prospect, PA
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Quote:
Sorry for bringing up an old thread, but
I've decided to put the hughes whiplash cam
lifters, Rpm intake.
Keep the 906 heads.
MSD 6al
I would like to keep the stock exhaust logs since I dont care for headers.
If I dont change to headers, will it make a huge difference?
The dyno's I have found dont test with headers, so I have no idea how much HP would be lost with the logs.
I've worked on quite a few low compression 440 and 440 exhaust manifold cars with the focus on performance.
Frankly, I'm not sure how that will work. I think your low compression motor will like the boost in cylinder pressure that this cam will give, but exhaust manifold cars usually do not respond real well to a bunch of overlap (relatively speaking).
If Hughes recommended it for your application, you should go for it, and report back.
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Re: How much to build 440?
[Re: BSB67]
#1708535
03/28/15 03:45 PM
03/28/15 03:45 PM
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Joined: Jan 2013
Posts: 103
M.A.
Fern
OP
member
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OP
member
Joined: Jan 2013
Posts: 103
M.A.
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I've worked on quite a few low compression 440 and 440 exhaust manifold cars with the focus on performance. Frankly, I'm not sure how that will work. I think your low compression motor will like the boost in cylinder pressure that this cam will give, but exhaust manifold cars usually do not respond real well to a bunch of overlap (relatively speaking). If Hughes recommended it for your application, you should go for it, and report back.
Hughes recommends this cam for my application. If I can get enough out of this motor it would be great not to remove it from the car. Hughes says to keep the heads on, just change the cam and lifters.
I'm not too sure if I like the idle as radical, but as long as I can get more HP and it can still be a daily driver, its fine.
Sounds like I will need headers.
Thank you 
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Re: How much to build 440?
[Re: Fern]
#1708536
03/28/15 04:16 PM
03/28/15 04:16 PM
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Joined: Feb 2005
Posts: 4,310
Prospect, PA
BSB67
master
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master
Joined: Feb 2005
Posts: 4,310
Prospect, PA
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Quote:
I've worked on quite a few low compression 440 and 440 exhaust manifold cars with the focus on performance.
Frankly, I'm not sure how that will work. I think your low compression motor will like the boost in cylinder pressure that this cam will give, but exhaust manifold cars usually do not respond real well to a bunch of overlap (relatively speaking).
If Hughes recommended it for your application, you should go for it, and report back.
Hughes recommends this cam for my application. If I can get enough out of this motor it would be great not to remove it from the car. Hughes says to keep the heads on, just change the cam and lifters.
I'm not too sure if I like the idle as radical, but as long as I can get more HP and it can still be a daily driver, its fine.
Sounds like I will need headers.
Thank you
I was not really suggesting that you get headers. You should be more optimistic about the cam, Hughes knows a thing or two about Mopars and cams. And if it's not right for you, try another. After you do your first cam change in the car, the next one will take 1/3 the time. Years ago, a cam change is what I did on Saturdays before I picked up my girl friend for dinner.
Good luck
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