What cam for my 440?
I've got a 1976 440 out of a motor home that I put in my '70 satellite. It has an Edelbrock RPM performer intake, Edelbrock 800 cfm carb, and headers, the rest is stock. I'm looking to put a different cam in it but not sure which one is best. I like a good lopey idle sound (nothing crazy though) but still need to maintain streetability. What cam will give me the best performance for this setup while still being streetable?
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Welcome.
You probably have lower compression than 1967-1970, so knowing that will help your selection. Can't go wrong with a smooth 1967 440HP cam or a step up to a 1969 1/2 440 six pack cam with high taper lifters. |
I have use the old Hemi cam in a low compression motor and it worked well, with 220 @ .050 lift its on the to "big side" for the low Compression 440.
https://www.summitracing.com/parts/cca-21-222-4 This has a little less duration which is a good thing but it's simular to the old hemi cam. |
70 -
I agreed with the above, but you also have to consider the stall on the converter (if an auto) and the gears in the rear. With a stock converter and gears, a lopey idle will = a low vacuum and a sluggish roll. Comp Cams has updated versions of the old Mopar sticks, and anything below the 509 model should work. But again, the converter and gears may become a factor. Archer |
I agree with all the above... There is not any gain in the H.P. area, But only a little to gain in the throttle response area, with a cam change. What your dealing with is an engine that might have like a 7.5 - 8.0 compression... So your kind of limited on how much more cam you can put in...
I myself like the VooDoo Cams.... |
You have to understand that comp and Lantai are the same company at this piont.
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Originally Posted by Iowan
(Post 142288)
You have to understand that comp and Lantai are the same company at this piont.
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My info came out the back door of Lunati, but it's not current.
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Originally Posted by Archer
(Post 142286)
70 -
I agreed with the above, but you also have to consider the stall on the converter (if an auto) and the gears in the rear. With a stock converter and gears, a lopey idle will = a low vacuum and a sluggish roll. Comp Cams has updated versions of the old Mopar sticks, and anything below the 509 model should work. But again, the converter and gears may become a factor. Archer |
Originally Posted by 70SportSatellite
(Post 142295)
Yeah its a 727 trans with stock converter, I'm not sure what gears are in it though. If lopey idle means sluggish throttle response, that's not something I want to sacrifice.
https://www.summitracing.com/parts/cca-21-221-4 will give your Mopar a nice boost in drivability, make sure that you install a new timing gear set also. Me personally I would go with the first cam I put up but you have to be right on the money with your carb and ignition tuning. |
70 -
"Stock" can mean as low as a 1200 rpm stall converter and 2.73 gears. Neither will like a performance cam. Sure, it'll run, but you won't like driving it. Basically, you can enjoy it the way it is, or you can turn it into a long term project. The nice thing about the latter, is that once you have a plan, you can tackle it one part at a time, based on time and budget. Archer |
That was kind of my piont, just adding a performance cam to a stock or used motor can turn into a project in it self, your going to open the great unknown ....
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