440 RV cam specs

[Dodge Bros]

The RV engine curiousyellow71 referred to ran surprising well. It was a blast when it ran good (we had trouble fouling plugs). We reused that cam in a 1970 440 with the center dump truck manifolds in our 72 Satelite, it ran a 14.0@97 with a 800 eddy carb, stock converter,3.23s and tiny 205/75r14 tires. The RV engine with 452s, headers, TQ and 3.23s, my guess is it would have ran mid to upper 13s at 100+. It ran good for what it was.

Wrymrider what does the Jones RV cam have on the exhaust profile?

We lost a bearing on the on the RV engine shortly after we put that 204/214 cam in. The block later end up being used on a irrigation well out in central NE. We kept the 452 heads, they are on the engine in Curousyellow71 avatar Charger. But about a year ago our other brother bought that RV/irrigation engine back to use it in a 72 dodge crew cab. It was a spare engine and did not get much use over the last 25 years, plus it was ran on natural gas, it should be in good shape. I think he at least needs a better cam...lol. He was talking about using it as is (young family budget build LOL) I talked him into at least letting us swap cams. I thing we used 902 or 975 heads from a mid seventies 440 on it.

I am curious about the Jones RV cam, it would be a step in the right direction. Where does it have peak power at? What is the LSA? I know the asymmetrical grind probably acts like a wider lsa. The dc260 might be ok to, but I think that Jones cam looks like a better fit to haul his young family around.

 

[wyrmrider]

for a real heavy u use the intake on the exhaust
otherwise it depends on your exhaust mostly
both duration and lift to match the exhaust
or if you want to run more rpm which can b stretchedset
lca is a result bot an input
it has a big flat torque curve
jones cam puts out more power everywhere than dc 260
more grunt than the dc 248
i'm runninrg- ported 915 heads .030 quench 9:1 in my tow rig pistons are d dish trw 6 packs
stock hp exhaust so i think my exhaust was + 10
get all your specs together and let mike figure it out
Id use the kb pistons quench dome pistions with open chamber heads
i helped design those pistons and although they were developed for 440 propane busses with a special Potvin /Moon Cam those buses are heavier than a motorhome
potvin was a .904 design around 195 with around 420 lift
Jones cam is designed to be very durable

 

[wyrmrider]

why does the whitebox 204-214 cam work? The .050 is not much different than stock
and 260 268 @.008 is not much shorter than the 278/288 @.004 of the aftermarket cam 14 degrees is HUGE
just using Jones cam as an example because I know the .004 is 264 but it has a 460 lift if degrees is big- and why advancing the whitebox another 4 degrees
over the 4 degrees ground in gives a short turn bost in DCA but kills the power stroke and mileage
It feels better because it closes the intake way earlier than the stock cam without extra advance- more dynamic compression- that's it mostly because of the LCA change not the duration
well almost
the narrower LCA gives more overlap
all the other things that an LCA change gives
what sucks is the low lift and the low lift for that long duration
we used to buy them for around $30 and stick them in used car rebuilds that works