edelbrock rpm package

[metcoll]

just wondering what you guys think of the rpm package...seems to make good power 469 hp &515 tq...i know a lot of you guys don't like the cam, just wondering as thi package seems to dyno good power...referring to  the 440 package............

[Rolling_Thunder]

the cam isnt all that bad - there are just better options out there

[flyinlow]

I used rpm heads,rpm intake,eps 800 carb/ 1-7/8 headers /auto/ stock 11 inch converter/on a 446 street build. Used Lunati 60303 cam . Works well together. Sounds good idling , 10-12 inches of vacume at idle. 12 mpg. on pump gas.
I did not know they made top end kits for Mopars untill after I did the engine.

[oldschool]

hey FLYINLOW,are you a pilot?

[firefighter3931]

The cam isn't very good...the rest is fine. 



Ron

[flyinlow]

Oldschool....  yes

[oldschool]

Oldschool....  yes

FLYINLOW,so am i. i own and fly a nice 33 bonanza. when the cars are not fast enough...........

[mopar2]

firefighter please explain which cam would be better, I'm thinking about this setup as well, 446 3.55 gears.Thanks Dierk

[firefighter3931]

firefighter please explain which cam would be better, I'm thinking about this setup as well, 446 3.55 gears.Thanks Dierk

The RPM cam is a slow/lazy grind with lots of duration and modest lift....something in the 225-230* @.050 valve lift would be a better choice. Engle and Lunati have some nice modern grinds that will idle better and make more usable power in the area you need it.



Ron

[mopar2]

I looked on the Engle web sight and found these two K-56, K-58. Seeing where you recommend the K-56 often. would this be your choice for the  Edd. heads stock piston .03 over 440? Thanks Dierk
2356-H K-56HYD .504"
.504" 272°
272° .336"
.336" 224°
224° 110° $155.00
.904" Lifter profile for midrange torque 9 to 1 compression street cars & trucks power from 1800-5500 RPM
2358-H K-58HYD .520"
.520" 276°
276° .347"
.347" 230°
230° 110° $155.00
.904" Lifter profile, Hot street performance 9 to9-1/2 to 1 compression moderate idle Midrange torque power 2000-5800 RPM

[firefighter3931]

I looked on the Engle web sight and found these two K-56, K-58. Seeing where you recommend the K-56 often. would this be your choice for the  Edd. heads stock piston .03 over 440? Thanks Dierk
2356-H K-56HYD .504"
.504" 272°
272° .336"
.336" 224°
224° 110° $155.00
.904" Lifter profile for midrange torque 9 to 1 compression street cars & trucks power from 1800-5500 RPM
2358-H K-58HYD .520"
.520" 276°
276° .347"
.347" 230°
230° 110° $155.00
.904" Lifter profile, Hot street performance 9 to9-1/2 to 1 compression moderate idle Midrange torque power 2000-5800 RPM

It depends on the compression and stall speed. With 10:1 the K58 will work nice but it will want ~ 2800 stall speed to be most effective. The K56 works good with stock or slightly over stock stall and 9:1 or more compression.



Ron

[mopar2]

Ron
Thanks for the help. I didn't mean to take over metcoll posts, just it is the exact set up I want to go with. I have the purple .484 and I'm very disappointed in how the car runes. Even considering changing the cam be for getting the heads. Would I notice much change in just changing cams?
Dierk