Posted By: 1fastrunner
Please, Help me pick a cam - 04/02/09 01:34 AM
I'm planning on using either the 509 cam or something very similar. Is MP the way to go, or should i be looking at other vendors?
Jim
Jim
Please, Help me pick a cam
Posted By: hulmule
Re: Please, Help me pick a cam - 04/02/09 01:54 AM
what are you going to do with the car?? if it's a driver you'll be un happy with the 509. i had it in my R/R with a4 sp and 391 didnt come alive till 1800- 2000. idle was huh ruff. my fiend runs the 484 and everyone i talked to drop down to the 484 and was happier. or go to a comp or a reed cam
Posted By: Dodge
Re: Please, Help me pick a cam - 04/02/09 02:18 AM
I had a 509 in my 70 Cuda with a 440. It must not of had enough compression. It was a real dog. I put a Comp Cam XE274H and it was like night and day. Very happy. It pulls hard from the bottom rpms to top.
Posted By: DaytonaTurbo
Re: Please, Help me pick a cam - 04/02/09 02:21 AM
If you want a good street/strip cam and have around 10:1 compression I would definitely with either the Comp XE275HL or the Lunati Voodoo 60303 which is a few degrees milder than the aforementioned comp grind.
Posted By: GTX MATT
Re: Please, Help me pick a cam - 04/02/09 02:55 AM
The 509 has for a long time been the mainstay of the MoPar big block performance machine. That being said its outdated, I'd run something from Hughes or Engle.
Posted By: 383man
Re: Please, Help me pick a cam - 04/02/09 04:03 AM
It will realy depend on what you want in the car. Will it be a street/strip car or street only ?? The MP .509 will make great power for what it is in the right combo. But it has a nice lopey idle that is great if you like that and can live with it. And you need to run a good bit of gear and converter with the .509 along with at least 10.0 comp imo. In the right combo the .509 will scream but if your car is street only and you dont set the combo right to get low end with the .509 you wont like it. Street only as a driver and a nice idle then I would go with as stated the Comp ' Lunati , Hughes , Engle or Crane. Call the cam company and tell them the combo you are building so they can help you or get in touch with Dwayne Porter as he is very good with cams. Good luck , Ron
Posted By: SomeCarGuy
Re: Please, Help me pick a cam - 04/02/09 04:29 AM
Call one of the Mopar engine shops, they will help you out.
We really do have some great Mopar shops around the country so it is hard to point you to just one.
We really do have some great Mopar shops around the country so it is hard to point you to just one.
Posted By: BDS871Cuda
Re: Please, Help me pick a cam - 04/02/09 06:04 AM
Quote:
If you want a good street/strip cam and have around 10:1 compression I would definitely with either the Comp XE275HL or the Lunati Voodoo 60303 which is a few degrees milder than the aforementioned comp grind.
The Lunati Voodoo cams sure make good street cams.
The Voodoo's are a step up from the BR. II's.
Posted By: 451Mopar
Re: Please, Help me pick a cam - 04/02/09 07:38 AM
The Mopar 484 and 509 cams were designed for bracket racing. Their good points are that they are cheap, relatively easy on valve springs, and make good mid/upper RPM power. The cons are they have a rough idle and weak low end power.
There are better cams avaliable that can make better power through a wider RPM range. They are a bit more expensive, and usually require using valve springs matched to the cam being used.
The Hughes cams are some of the most agressive profile flat tappet cams avaliable off the shelf.
The Comp HE2??HL cams are good too.
I think the Voodo cams are simular, but I have not used them.
There are better cams avaliable that can make better power through a wider RPM range. They are a bit more expensive, and usually require using valve springs matched to the cam being used.
The Hughes cams are some of the most agressive profile flat tappet cams avaliable off the shelf.
The Comp HE2??HL cams are good too.
I think the Voodo cams are simular, but I have not used them.
Posted By: 1fastrunner
Re: Please, Help me pick a cam - 04/02/09 09:37 AM
My car is a '71 Roadrunner w/ a 4-speed and 3.23 gears. It will be street driven.
Thanks,
Jim
Thanks,
Jim
Posted By: n_bogie1984
Re: Please, Help me pick a cam - 04/02/09 11:22 AM
ive run the .484, .509 and the .528. if your useing a solid settup i would go with the .528 unit little less duration and still not to hard on things.
Posted By: Mr.Yuck
Re: Please, Help me pick a cam - 04/02/09 12:21 PM
Quote:
My car is a '71 Roadrunner w/ a 4-speed and 3.23 gears. It will be street driven.
Thanks,
Jim
509 is a good cam for a 10:1+ motor, good heads, intake, headers and 3.91's or better. If you want to keep the 3.23's you'd probably be better off w/ a different cam. Something a little more low-ended.
Posted By: Airgrabber
Re: Please, Help me pick a cam - 04/02/09 12:38 PM
The 484 works well with your combo. Nice low end torque and power across the board. 
Posted By: 451Mopar
Re: Please, Help me pick a cam - 04/02/09 03:16 PM
what is the engine combination?
Are you just going to install the cam in the stock engine or are you rebuilding the motor?
Is that a 383 or 440? What pistons/compression ratio, heads and/or headwork? what intake and exhaust are you using?
Are you just going to install the cam in the stock engine or are you rebuilding the motor?
Is that a 383 or 440? What pistons/compression ratio, heads and/or headwork? what intake and exhaust are you using?
Posted By: 383man
Re: Please, Help me pick a cam - 04/02/09 05:04 PM
Quote:
My car is a '71 Roadrunner w/ a 4-speed and 3.23 gears. It will be street driven.
Thanks,
Jim
Definetly do not want to use the .509 cam in that combo. The MP stock bigblock cam would work nice in that. It has about .455 lift and .258 advertised I believe. Or just call Comp or Crane or whatever cam you decide on and let them help you. Ron
Posted By: 1fastrunner
Re: Please, Help me pick a cam - 04/02/09 06:17 PM
It's a 440 30 over w/ Arias piatond (about 9.5), but that could change if the heads are planed. I want to maintain pump gas, it has a Holley 750 dp, and an Edelbrock chp4(?). Hooker super comps 1 78/" and a 2.5 exhaust, which will be upgraded to 3" in the future. I'd like to keep the 3.23 gears as I like to drive distances. The motor is being rebuilt.
I'm looking for the best cam for this set-up including the stealth heads.
Thanks,
Jim
I'm looking for the best cam for this set-up including the stealth heads.
Thanks,
Jim
Posted By: I go fast
Re: Please, Help me pick a cam - 04/02/09 06:29 PM
Quote:
I'm planning on using either the 509 cam or something very similar. Is MP the way to go, or should i be looking at other vendors?
Jim
When you ask everyone with different opinions,this is what you get.
Posted By: ahy
Re: Please, Help me pick a cam - 04/03/09 12:55 AM
Quote:
If you want a good street/strip cam and have around 10:1 compression I would definitely with either the Comp XE275HL or the Lunati Voodoo 60303 which is a few degrees milder than the aforementioned comp grind.
With a manual trans street driven its loads of fun to have lots of torque on tap from 2000 to 5000 RPM. The 509 won't give you that - it has too much duration plus you can't run a loose convertor to compensate. A faster rate cam as posted above with enough lift to take advantage of your heads would work much better.
With the stealth heads, if you can get your piston to zero deck so the "quench" equals the .040 (approximate) thickness of the head gasket you can run more compression than 9.5. 10.25 would still be conservative and give more torque and power. If your piston is "down in the hole" then 9.5 or a little more is probably about right.
Posted By: Mr.Yuck
Re: Please, Help me pick a cam - 04/03/09 01:07 AM
Quote:
The 484 works well with your combo. Nice low end torque and power across the board.
mopar 484? that will be a dog w/ 3.23's it's not much different than the 509. It pulls terrible vacuum and has poor street manners. The old grind anyway.
Posted By: mark7171
Re: Please, Help me pick a cam - 04/03/09 01:44 AM
the 484 is gonna want gear. It is a racing cam.
not as bad as the 509. Which is a serious cam that is every bit as good as the cams today. Most modern cams are small base circle. If a thumping shaft is getting shoved in a mill hole, It better be thick and bumpy.
not as bad as the 509. Which is a serious cam that is every bit as good as the cams today. Most modern cams are small base circle. If a thumping shaft is getting shoved in a mill hole, It better be thick and bumpy.
Posted By: 1fastrunner
Re: Please, Help me pick a cam - 04/03/09 01:59 AM
Quote:
I had a 509 in my 70 Cuda with a 440. It must not of had enough compression. It was a real dog. I put a Comp Cam XE274H and it was like night and day. Very happy. It pulls hard from the bottom rpms to top.
So is this a good choice?
Jim
Posted By: ahy
Re: Please, Help me pick a cam - 04/03/09 02:08 AM
I think a good choice... similar to the XE275HL but more conservative profile with less lift and less wear and tear on the valvetrain.
Posted By: Mr71Bee
Re: Please, Help me pick a cam - 04/03/09 02:21 AM
IMO:
limit your duration at .050 to 220 to 225 degrees max. 110 to 112 lobe sep angle. You are going to need a loose converter and some gear in the rear you go any bigger.
Dont go too loose without changing the gear. You will be slippin that converter big time at highway speeds and generating a lot of heat in the tranny.
use a modern profile cam for our wider mopar lifters. Fast rate of lift, like a Hughes can make great street power taking advantage of the air flow of aluminum heads without maxing the duration. Makes more torque too.
Last, dont cheap out with stock rockers. Get some adjustables.
Dallas
limit your duration at .050 to 220 to 225 degrees max. 110 to 112 lobe sep angle. You are going to need a loose converter and some gear in the rear you go any bigger.
Dont go too loose without changing the gear. You will be slippin that converter big time at highway speeds and generating a lot of heat in the tranny.
use a modern profile cam for our wider mopar lifters. Fast rate of lift, like a Hughes can make great street power taking advantage of the air flow of aluminum heads without maxing the duration. Makes more torque too.
Last, dont cheap out with stock rockers. Get some adjustables.
Dallas
Posted By: mickm
Re: Please, Help me pick a cam - 04/03/09 03:05 AM
Quote:
If a thumping shaft is getting shoved in a mill hole, It better be thick and bumpy.
that's what my wife says, but i don't pay attention to her...
Posted By: moper
Re: Please, Help me pick a cam - 04/03/09 03:18 AM
XE268 or similar. It works very well from idle up. I think any smaller and you're leaving power on the table for no reason. But I also think the 274 is too much for it.
Posted By: 1970sixpak
Re: Please, Help me pick a cam - 04/03/09 03:42 AM
I would go with the comp 292/501 magnum cam. I have been happy with it on 2 different motors.
Posted By: Brian Hafliger
Re: Please, Help me pick a cam - 04/04/09 02:50 PM
Quote:
I'm planning on using either the 509 cam or something very similar. Is MP the way to go, or should i be looking at other vendors?
Jim
Are you porting the stealths? They work awesome when done right, and will make more HP and TQ everywhere.
I like the Comp XE275HL cam. Personally, that would be my choice. Only I would have it cut on a 108lca.
Brian
Posted By: 1fastrunner
Re: Please, Help me pick a cam - 04/04/09 02:58 PM
That rpm range seems a little high for me. As far as the stealth heads, I'm not porting at this time, maybe milling them to get to 10 compression. I have a 4-speed with 3.23 gears, and my rpm range is probably above 1000-3000 for most of my street driving.
Some of the Comp cams I'm looking at are:
256H, 260H, XE262H, 265DEH, 268H, & 275DEH.
I'm not eliminating any other brands or grinds, but these are just from looking at their site.
Jim
Some of the Comp cams I'm looking at are:
256H, 260H, XE262H, 265DEH, 268H, & 275DEH.
I'm not eliminating any other brands or grinds, but these are just from looking at their site.
Jim
Posted By: Junky
Re: Please, Help me pick a cam - 04/04/09 03:33 PM
Quote:
That rpm range seems a little high for me. As far as the stealth heads, I'm not porting at this time, maybe milling them to get to 10 compression. I have a 4-speed with 3.23 gears, and my rpm range is probably above 1000-3000 for most of my street driving.
Some of the Comp cams I'm looking at are:
256H, 260H, XE262H, 265DEH, 268H, & 275DEH.
I'm not eliminating any other brands or grinds, but these are just from looking at their site.
Jim
I run the XE262H in my 383, which is slightly "bigger" than the stock magnum cam. It performs very well for the street. With 275/60/15 on the rear, a 727 and 3.73 gears I can blow the tires off from an idle, from a stop. So, I'd think the XE268H would work about the same in a 440 as the XE262H in my 383... The 262 gives my 383 a nice noticeable muscle car idle.
The XE274H cam may work good for you too if your compression is at least a true 9 to 1.
Posted By: Anonymous
Re: Please, Help me pick a cam - 04/04/09 05:24 PM
Dont overlook the Lunati Voodoo cams. Cam's have come a long way in 40 years. And the 509 is a great cam still. But its not a nice street cam!The .475/.494 would be a great choice for your combo. It's low duration. Keeps the pressure and vacuum up. It doesnt need alot of gear either. I have it in my 72 New Yorker with 373's and i'll tell ya. It aint your grandpa's New Yorker! Great street cam!!!! 
Posted By: patrick
Re: Please, Help me pick a cam - 04/05/09 02:27 AM
I'd look at the voodoo 60303, 60304, or comp XE275HL
Posted By: 451Mopar
Re: Please, Help me pick a cam - 04/05/09 05:37 AM
The Lunati 60303LK 226/234 @ 0.050, 0.494"/0.513" lift, 110 LSA would be a good pick, and it is one of the least expensive cam/Lifter kits at $180.
If you are going for more power, the Comp XE275HL cam is really nice, 231/237 @ 0.050", 0.525"/0.525", 110 lsa, and the cam/lifter kit is only $210 from summit racing.
The Hughes HEH2832BL3 cam (228/232 @ 0.050", 0.524"/0.540" lift 110 lsa) should give you the torque of the milider Lunati cam and near the HP of the Comp cam, but it is the most expensive at about $270 for cam and lifters.
Anyhow thats my
If you are going for more power, the Comp XE275HL cam is really nice, 231/237 @ 0.050", 0.525"/0.525", 110 lsa, and the cam/lifter kit is only $210 from summit racing.
The Hughes HEH2832BL3 cam (228/232 @ 0.050", 0.524"/0.540" lift 110 lsa) should give you the torque of the milider Lunati cam and near the HP of the Comp cam, but it is the most expensive at about $270 for cam and lifters.
Anyhow thats my