Anyone using a P4452782AE on 340/360?

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xLURKxDOGx

xLURKxDOGx

"An angel fat, at satan's feast"
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Just curious if anyone out the using or used this cam. Thoughts of putting in my 360 d100 with stock rebuilt bottom end, 596 heads cleaned up and ports matched with 3.23’s.

Thanks,
Jake
 
Specs are better than P numbers.... just sayin my man. BEB, no I’ll go search for it....

Here it is.....

Purple Shaft Hydraulic Camshaft & Lifter Kit
  • Chrysler 273, 318, 340, 360
  • Advertised Duration: 268°/276°
  • Centerline: 114°
  • Lift: .429"/.444"
  • RPM Range: Idle to 5800
——-——-—

Stock OEM HP cam installed in 340 engines and 360 4bbl. Engines.
If you can give the cylinder some squeeze it’ll be great.
Do we need to talk about this?
 
Got almost the same camshaft about to swap in to my 360/4 speed this Sunday but the durations is 268/280 .477/480 lift comp cams Camshaft $135.00. For your camshaft you picked since you got an auto I would go with some 3.55s
 
rumblefish360 said:
Specs are better than P numbers.... just sayin my man. BEB, no I’ll go search for it....

Here it is.....

Purple Shaft Hydraulic Camshaft & Lifter Kit
  • Chrysler 273, 318, 340, 360
  • Advertised Duration: 268°/276°
  • Centerline: 114°
  • Lift: .429"/.444"
  • RPM Range: Idle to 5800
——-——-—

Stock OEM HP cam installed in 340 engines and 360 4bbl. Engines.
If you can give the cylinder some squeeze it’ll be great.
Do we need to talk about this?
Click to expand...
I had the heads cleaned up and I’m using shim head gaskets so might go up slightly.

Slantsix64 said:
Got almost the same camshaft about to swap in to my 360/4 speed this Sunday but the durations is 268/280 .477/480 lift comp cams Camshaft $135.00. For your camshaft you picked since you got an auto I would go with some 3.55s
Click to expand...
I had a summit cam similar to that and wiped a lobe :/ I’m looking at something smaller since I’ve got 3.23.

Jake
 
xLURKxDOGx said:
I had the heads cleaned up and I’m using shim head gaskets so might go up slightly.
Click to expand...
Nice. We’re they milled at all?
A half point increase will help yield good results with a iron head. Generally, with a small cam, I don’t like to go past a 9.0-1 ratio. Going higher isn’t a octane issue until you get that bad tank of gas.
 
to much duration with 3.23 and stock compression
stock piston or has motor lower end been rebuilt?
this is a low lift- low area under the curve cam
seat to seat duration is more than the 268 (designed for a chevy lifter) comp which is also too much duration
do you have compression check numbers?
good news is that MP cam lives forever and it's fater than it looks and works with stock 340 type springs
need to get a handle on your compression before any cam comments
headers? AT or 4 speed etc, carb and manifold?
check Lunati Voodoo line
and some howards the real mopar cams are flagged in the catalog also some Bullets
Engle has a good line if you ask as does Crower
comp not so much
 
Yup! That’s the stock cam of back in the day designed to run forever without issue for the general public.
Wyrmrider said:
to much duration with 3.23 and stock compression
stock piston or has motor lower end been rebuilt?
this is a low lift- low area under the curve cam
seat to seat duration is more than the 268 (designed for a chevy lifter) comp which is also too much duration
do you have compression check numbers?
good news is that MP cam lives forever and it's fater than it looks and works with stock 340 type springs
need to get a handle on your compression before any cam comments
headers? AT or 4 speed etc, carb and manifold?
check Lunati Voodoo line
and some howards the real mopar cams are flagged in the catalog also some Bullets
Engle has a good line if you ask as does Crower
comp not so much
Click to expand...
 
If you up The Compression Ratio it Should run great. With a mill of the heads, I milled stock 360 heads .045 no problems at all. Also they have the thin Mr.gasket .028. Shim. With some stall and 3.55 would be best my 360 Has the old Chrysler gears set up which is 3.31 ratio and man they feel like 2.94. 3.55 or 3.91 feels about right with that camshaft.
 
Get the compression up some and advance the cam down to 108 or 106 ICL.
 
RustyRatRod said:
Get the compression up some and advance the cam down to 108 or 106 ICL.
Click to expand...
I was planning on advancing it 4 degrees.
Wyrmrider said:
to much duration with 3.23 and stock compression
stock piston or has motor lower end been rebuilt?
this is a low lift- low area under the curve cam
seat to seat duration is more than the 268 (designed for a chevy lifter) comp which is also too much duration
do you have compression check numbers?
good news is that MP cam lives forever and it's fater than it looks and works with stock 340 type springs
need to get a handle on your compression before any cam comments
headers? AT or 4 speed etc, carb and manifold?
check Lunati Voodoo line
and some howards the real mopar cams are flagged in the catalog also some Bullets
Engle has a good line if you ask as does Crower
comp not so much
Click to expand...
The lower end was completely rebuilt but wiped a love on the cam after a minor comedy or errors :/. Now I’m back searching out something better than stock. I’d heard the 340 cam being suggested but never had good numbers to compare.

rumblefish360 said:
Nice. We’re they milled at all?
A half point increase will help yield good results with a iron head. Generally, with a small cam, I don’t like to go past a 9.0-1 ratio. Going higher isn’t a octane issue until you get that bad tank of gas.
Click to expand...
I had the deck milled more then a clean up and same with the heads. The headgaskets I have are nos 3512719. Hopefully that get me there.


Jake
 
xLURKxDOGx said:
Just curious if anyone out the using or used this cam. Thoughts of putting in my 360 d100 with stock rebuilt bottom end, 596 heads cleaned up and ports matched with 3.23’s.

Thanks,
Jake
Click to expand...

I would go for it...
 
xLURKxDOGx said:
Yeah, more than likely I’ll grab it tonight. Thanks for everyone’s input, it’s much appreciated.

Jake
Click to expand...

That's not too big... If anything install a set of Rhoades variable duration lifters...

Run it with a good dual plane intake and I like the Holley 80457 carb - 600 vacuum secondary...

Holley 4160 Aluminum Street Carburetor
 
rhoads lifters good idea
have we figured out what the compression will be/
a 268 MP is longer duration than a 268 comp or lunati or Howard about the same as Engle
 
krazykuda said:
That's not too big... If anything install a set of Rhoades variable duration lifters...

Run it with a good dual plane intake and I like the Holley 80457 carb - 600 vacuum secondary...

Holley 4160 Aluminum Street Carburetor
Click to expand...
Yeah, the one part I forgot to mention. I have headers and a carter 625. I have a new set of mp lifters and upgraded lunati springs.

Jake
 
remember if you advance you also advance the exhaust open and cut your powerstroke
this hurts more in a low compression build
just a heads up
but about the only way to make a too big cam sorta work
 
And that cam is not sort of to big by any means.
 
rumblefish360 said:
And that cam is not sort of to big by any means.
Click to expand...

Well.......and I know you will agree here......."sorta" it is. Were it not for being ground on a 115 LSA, it would be a god bit "bigger" so to speak. It has some duration, there's no denying.

And here's the thing about camshaft timing. Advancing the camshaft timing gives more bottom end torque at the VERY SMALL expense of "some" top end torque. While retarding the camshaft timing takes away a "good bit" of bottom end for a "very small" increase up top. So advancing by far has a much better payoff, IMO.
 
Too big... that's a stock 208 @ .050 340 style camshaft. You could put it in a 7.5:1 smogger just fine!


MUCH smaller than the voodoo or XE line of cams at .050... not even close.
 
crackedback said:
Too big... that's a stock 208 @ .050 340 style camshaft. You could put it in a 7.5:1 smogger just fine!


MUCH smaller than the voodoo or XE line of cams at .050... not even close.
Click to expand...
Since you’re the last person to comment, I have a new set of lunati 73815-16 springs and retainers, you think they would be a bad fit for that cam? Here are the specs.

  • Outside Diameter (Outer): 1.500"
  • Inside Diameter (Outer): 1.086"
  • Inside Diameter (Inner): N/A
  • Seat Load: 120 @ 1.820"
  • Open Load: 315 @ 1.250"
  • Coil Bind: 1.094"
  • Spring Rate (lbs/inch): 342 lbs/in
 
xLURKxDOGx said:
Since you’re the last person to comment, I have a new set of lunati 73815-16 springs and retainers, you think they would be a bad fit for that cam? Here are the specs.

  • Outside Diameter (Outer): 1.500"
  • Inside Diameter (Outer): 1.086"
  • Inside Diameter (Inner): N/A
  • Seat Load: 120 @ 1.820"
  • Open Load: 315 @ 1.250"
  • Coil Bind: 1.094"
  • Spring Rate (lbs/inch): 342 lbs/in
Click to expand...
Why don't you just run rockauto 340 springs?
 
crackedback said:
Too big... that's a stock 208 @ .050 340 style camshaft. You could put it in a 7.5:1 smogger just fine!


MUCH smaller than the voodoo or XE line of cams at .050... not even close.
Click to expand...

Is it that small? I've measured it on the wheel before and came up exactly 10* bigger on the intake and 2* more on the exhaust. I wonder if they grind them all the same.
 
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