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Author Topic: Camshaft thoughts....  (Read 1322 times)

Brian

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Camshaft thoughts....
« on: May 03, 2008, 09:32:20 AM »

I know this has been discussed in length but I need opinions since I can't seem to find the info I'm looking for on-line.
I was going to use a MP cam..P4286675 for my 440 redo, recommended by 68C-barge, he used it in his 68 Newyorker and has gobs of bottom end torque and power...just what I'm looking for.
I came accross this other MP cam..P4286677...now I can't seem to find any descriptions, testements, on what this came is like.  The best I could find is that it is a street cam?
I not looking for any major HP's out of my 440, just lots of grunt and great idle, lots of vacuum and good fuel mileage....would this cam work for my needs??

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Brian

02 Chrysler Concorde Lxi
84 Dodge Crewcab, Cummins/5speed
68 Chrysler Station Wagon 440/auto
48 Desoto 2dr Sedan flat 6/3spd manual

Steve

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Camshaft thoughts....
« Reply #1 on: May 03, 2008, 09:35:30 AM »

Boy. . .You don't want too much do you
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Brian

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Camshaft thoughts....
« Reply #2 on: May 03, 2008, 11:27:24 AM »

OK maybe I can conceed on the fuel mileage....
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Brian

02 Chrysler Concorde Lxi
84 Dodge Crewcab, Cummins/5speed
68 Chrysler Station Wagon 440/auto
48 Desoto 2dr Sedan flat 6/3spd manual

Steve

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Camshaft thoughts....
« Reply #3 on: May 03, 2008, 11:57:42 AM »

A trick learned from a 225 was a smaller intake valve.  In this case a shorter duration.
 
I would look at what the stock cam was and work around that.  Unfortunately, there is no such thing as an economical 440.
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Brian

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Camshaft thoughts....
« Reply #4 on: May 03, 2008, 12:47:24 PM »

Quote from: POLARACO
Unfortunately, there is no such thing as an economical 440.
 
Aint that the truth....
 
But I can try and maximise the fuel consuption.
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Brian

02 Chrysler Concorde Lxi
84 Dodge Crewcab, Cummins/5speed
68 Chrysler Station Wagon 440/auto
48 Desoto 2dr Sedan flat 6/3spd manual

Steve

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Camshaft thoughts....
« Reply #5 on: May 03, 2008, 01:06:01 PM »

Then drop a lung and go fuel injection.  You can tune it for what ever you want.
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Leaburn Patey

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Camshaft thoughts....
« Reply #6 on: May 03, 2008, 01:35:43 PM »

Best of 18MPG average of 16.28 MPG.As good as it gets,IMHO.
I cant complain.The NY'er got me back home from long distance trips lke Joisey and back.
The TTi system was good for 2MPG overall.
The cam I recommended does work very well.When I towed my camper behind the NY'er you did not know it was there.Gobs of torque to climb hills on the highway without losing speed or dropping down a gear.Towing MPG was 11-12 at best.
It does have a lopey idle yet vacuum is smooth and high enough to run all the acsessories.
 
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Brian

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Camshaft thoughts....
« Reply #7 on: May 03, 2008, 01:44:03 PM »

Quote from: POLARACO
Then drop a lung and go fuel injection.  You can tune it for what ever you want.
 
thrashingcows2008-05-03 18:44:22
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Brian

02 Chrysler Concorde Lxi
84 Dodge Crewcab, Cummins/5speed
68 Chrysler Station Wagon 440/auto
48 Desoto 2dr Sedan flat 6/3spd manual

Leaburn Patey

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Camshaft thoughts....
« Reply #8 on: May 03, 2008, 01:47:26 PM »

The 6677 cam will be a more radical cam.More lopey idle.Not a very high lift cam yet duration is longer.Vacuum will drop but not enough to cause any problems with power brakes.
This cam will be more suited to medium/high end revs and in a lighter hotrodded A or B.
Heavy C's need grunt off the line to get moving.,IMO.My reason for choosing the 6675 cam.
It does work great at top end,BTW..
Here it is at idle:

CBarge2008-05-03 19:31:20
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1973 Satelitte wagon
1983 Dodge 400
2006 300C HEMI!!

Leaburn Patey

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Camshaft thoughts....
« Reply #9 on: May 03, 2008, 01:54:38 PM »

Top end: Listen to the 750 Carter sing!! After a Buck 20 I do not know how fast I was going.

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1968 Newport Custom project BOAB
1973 Satelitte wagon
1983 Dodge 400
2006 300C HEMI!!

Brian

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Camshaft thoughts....
« Reply #10 on: May 03, 2008, 02:15:54 PM »

That's what I want...gobs of bottom end grunt..top end doesn't concern me I aint goin that fast anyway.
 
Sounds good idling there Leaburn..and the top end ride was fun too!!
 
I guess I'll go with the 6675 then.
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Brian

02 Chrysler Concorde Lxi
84 Dodge Crewcab, Cummins/5speed
68 Chrysler Station Wagon 440/auto
48 Desoto 2dr Sedan flat 6/3spd manual

Leaburn Patey

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Camshaft thoughts....
« Reply #11 on: May 03, 2008, 02:43:31 PM »

Keep in mind that if you are running the stock 71 compression the other cam will be too much.
The cam I am using and you plan to use will be fine.
Based on my specs,the lo-po 440 in 71 was running 8.80 compression and the TNT was running 9.50.
I dropped my compression when I swapped in 452 heads by a half-point. I am hovering somewhere 9.5 or so.
If you were going to use the hotter cam,I would recommend bumping the CR (Shave the heads,or change pistons) to take full advantage of its capabilities.This will cost money in parts,machining and balancing.RB pistons are not cheap,IMO.
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1968 Newport Custom project BOAB
1973 Satelitte wagon
1983 Dodge 400
2006 300C HEMI!!

Brian

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Camshaft thoughts....
« Reply #12 on: May 03, 2008, 04:41:00 PM »

When I get the motor apart I will see if I'm going to just hone the cylinders, remove any ridge at the top of the Cylinders and then re-ring and bearings on the bottom end.
 
Stock parts nothing major right now.
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Brian

02 Chrysler Concorde Lxi
84 Dodge Crewcab, Cummins/5speed
68 Chrysler Station Wagon 440/auto
48 Desoto 2dr Sedan flat 6/3spd manual

Dan Cluley

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Camshaft thoughts....
« Reply #13 on: May 04, 2008, 02:45:01 AM »

Quote from: CBarge
Best of 18MPG average of 16.28 MPG.As good as it gets,IMHO.


 
D Cluley2008-05-04 07:51:21
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Steve

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Camshaft thoughts....
« Reply #14 on: May 04, 2008, 04:32:44 AM »

Brian
 
I urge you to have the crank polished or turned 10 over.  You'll be glad you did
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