Previous Thread
Next Thread
Print Thread
440 Cam Swap Thoughts #1848205
06/13/15 06:07 PM
06/13/15 06:07 PM
Joined: Jun 2005
Posts: 142
Chattanooga, TN
KDY Offline OP
member
KDY  Offline OP
member

Joined: Jun 2005
Posts: 142
Chattanooga, TN
Hey guys I'm looking to get some thoughts on doing a potential cam swap in my truck. I built this truck in college on a shoe string budget. Rather than just building a different engine I'd rather maximize the combo I have at the moment. The truck is mostly a footbrake car but I still like to cruise it to the local car shows or burger joint every once in a while. Call it street and strip...but mostly strip. It's been 7.67 @ 88 mph (1/8th mile) with a 1.63 60ft in the heat so far.

'83 Dodge D150
Motorhome 440 - stock cast crank and rods
KB184 pistons - approximately 9.5:1
Mopar stage 5 iron heads - 77cc, 267/187 CFM at .600
Holley street dominator
Holley 750dp

727 with 8" converter, flashes 3800
I will be swapping back to a 9.5 PTC that flashes 4200 behind this combo at some point.
Dana 60 with 4.10s

The truck is 3800lb with me in it and a full tank of gas.

Current cam is is a Comp XS724
.502/.511 lift.
236/242 at .05
31 IVO, 63 IVC
26 EVO, 74 EVC
Cam is installed straight up.

I think I'm leaving a good bit of ET on the table with the cam that is in it now. I am thinking of having a custom cam ground for this combo.

Think it's worth it and will it pick it up?

Re: 440 Cam Swap Thoughts [Re: KDY] #1848214
06/13/15 06:22 PM
06/13/15 06:22 PM
Joined: Aug 2003
Posts: 43,195
Bend,OR USA
C
Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
C

Joined: Aug 2003
Posts: 43,195
Bend,OR USA
Do you want to stay with hydrailic flat lifters? If so I would look at using the Extreme energy high lift XE---HL grinds scope twocents I've used the those cams (the bigger two) with good results in pump gas motors similar to yours up On your deal either the XE285HL or the bigger XE295HL should make the truck 60 ft better and run more MPH on the other end up twocents Both of those cams have lumpy idles, no way I could convince the locals that they where Magnum 6 pak cams whistling shruggy smile

Last edited by Cab_Burge; 06/13/15 06:23 PM.

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: 440 Cam Swap Thoughts [Re: KDY] #1848222
06/13/15 06:31 PM
06/13/15 06:31 PM
Joined: Jun 2005
Posts: 142
Chattanooga, TN
KDY Offline OP
member
KDY  Offline OP
member

Joined: Jun 2005
Posts: 142
Chattanooga, TN
It's actually a solid cam. Those 2 cams look like good candidates.

Re: 440 Cam Swap Thoughts [Re: KDY] #1848529
06/14/15 03:45 AM
06/14/15 03:45 AM
Joined: Aug 2003
Posts: 43,195
Bend,OR USA
C
Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
C

Joined: Aug 2003
Posts: 43,195
Bend,OR USA
I see that grind now in the Comp catalog blush shruggyI would go bigger based on your converter choices up Stiffen up the valve spring pressures to 140 to 170 lbs on the seats and shoot for 325 lbs to 375 lbs over the nose, break the new cam in with less pressures than those and see how it runs up twocents Maybe one of the dedicated drag grinds would be a good choice, I like and use grinds with 255 to 270 at .050 on 108 LSA when I run a solid flat tappet cam, installed at 103 to 105 intake lobe centers up I like and use solid roller cams for most of my drag race motors now due to the problems with solid lifters and thier lack of life with todays oils work

Last edited by Cab_Burge; 06/14/15 03:47 AM.

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: 440 Cam Swap Thoughts [Re: KDY] #1848874
06/14/15 05:53 PM
06/14/15 05:53 PM
Joined: Jun 2005
Posts: 142
Chattanooga, TN
KDY Offline OP
member
KDY  Offline OP
member

Joined: Jun 2005
Posts: 142
Chattanooga, TN
Thanks Cab!

I've had the current cam nitrided when I ordered it from Comp. No problems here so far.

Anyone ever drove a MP .590 cam some on them street? I've been reading good results on those in similar weight B bodies. However it might be a tad much for my mild combo.

Re: 440 Cam Swap Thoughts [Re: KDY] #1849390
06/15/15 05:55 AM
06/15/15 05:55 AM
Joined: Jan 2003
Posts: 27,421
Balt. Md
3
383man Offline
Too Many Posts
383man  Offline
Too Many Posts
3

Joined: Jan 2003
Posts: 27,421
Balt. Md
Originally Posted By KDY
Thanks Cab!

I've had the current cam nitrided when I ordered it from Comp. No problems here so far.

Anyone ever drove a MP .590 cam some on them street? I've been reading good results on those in similar weight B bodies. However it might be a tad much for my mild combo.




The cust grind cam from Dwayne Porter I use in my 63 is not real far from the MP .590 as my solid flat tappet that Dwayne did for me is .585 & .592 lift at 264 & 270 @ .050 with a 110 LSA and I have it in my eng on a 106 ICl. And I do use Hughes 1.6 rockers that puts my lift around .630. I drive it on the street all the time as its actually a nice driving car as I use a Dynamic 9.5 converter that flashes about 4200 and I run 4.30's with 30 x 9 rear tires. I love driving it on the street as I drive it alot on the street. Ron

Re: 440 Cam Swap Thoughts [Re: KDY] #1849611
06/15/15 02:29 PM
06/15/15 02:29 PM
Joined: Jun 2005
Posts: 142
Chattanooga, TN
KDY Offline OP
member
KDY  Offline OP
member

Joined: Jun 2005
Posts: 142
Chattanooga, TN
Thanks for the reply 383man! I really dig your car and combo!

I think I need to call Dwayne and just be done with it...

Re: 440 Cam Swap Thoughts [Re: KDY] #1849790
06/15/15 06:57 PM
06/15/15 06:57 PM
Joined: Jan 2003
Posts: 27,421
Balt. Md
3
383man Offline
Too Many Posts
383man  Offline
Too Many Posts
3

Joined: Jan 2003
Posts: 27,421
Balt. Md
Originally Posted By KDY
Thanks for the reply 383man! I really dig your car and combo!

I think I need to call Dwayne and just be done with it...



Thanks for the kind words. wave Ron

Re: 440 Cam Swap Thoughts [Re: KDY] #1849794
06/15/15 07:06 PM
06/15/15 07:06 PM
Joined: Jul 2004
Posts: 19,317
State of confusion
T
Thumperdart Offline
I Live Here
Thumperdart  Offline
I Live Here
T

Joined: Jul 2004
Posts: 19,317
State of confusion
Originally Posted By KDY
Thanks Cab!

I've had the current cam nitrided when I ordered it from Comp. No problems here so far.

Anyone ever drove a MP .590 cam some on them street? I've been reading good results on those in similar weight B bodies. However it might be a tad much for my mild combo.



I had Isky`s similar grind w/ .590-.605 lift and drove it for 7 years and sold it to a friend. With proper spring pressures, components and gentle ramps, any cam can be driven on the street imo.


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: 440 Cam Swap Thoughts [Re: KDY] #1850147
06/16/15 12:46 AM
06/16/15 12:46 AM
Joined: Jul 2004
Posts: 4,732
Watertown, WI
MikeyT Offline
master
MikeyT  Offline
master

Joined: Jul 2004
Posts: 4,732
Watertown, WI
Personally I would give Dwayne Porter a call and have him custom grind one for you, it won't be that much more but well worth it performance wise. If not I like Cab's suggestion on the XL285 cam

Mikey


1969 Dodge Dart Swinger






Powered by UBB.threads™ PHP Forum Software 7.7.1