mopar purple cam question

[spudsterier]

i just ordered a .484 purple cam for my 360 and was wondering if i have to get new valve springs or anything else?

also, if i need new valve springs, does anyone know what size i would need?

i found some elgin pro stock performance valve springs for cheap.
it says they will handle up to a .505 lift and are 1.494 diameter.
95# at 1.650
270# at 1.200
coil bind 1.085

will these work?

 

[rumblefish360]

Off the top of my head, I do not remember what the MP suggested spring rate is on there springs but the real question is why don't you get the MoPar spring since they have a matched set to use with there cam?

It couldn't be to save a buck. Penny wise, dollor foolish ends up destroting engines quick.

 

[spudsterier]

honestly, it is to save a few bucks for right now...
im still debating on the spring though....i just sold one of my paintball guns so i have a few more bucks to put towards sumthing....probally the MP springs

 

[rumblefish360]

If the spring isn't up to snuff, then a wiped out engine will be the result and saving pennies turns into wasted dollors.

Thus the "Penny wise dollor foolish" statment.

 

[70aarcuda]

P4120249 which is the stock 340 valve spring replacement....

 

[spudsterier]

what about Comp Cams 901-16
would those work for the .484 purple cam?

 

[rumblefish360]

Look up the spring pressures in the MoPar engines book and then compare.

 

[1994rm250]

you have to check the spring rate .. and make sure your springs are not going to bind toghter !

and the Springs lbs

 

[1994rm250]

what is a stock cam size ?

 

[wigsplitter74]

i just ordered a .484 purple cam for my 360 and was wondering if i have to get new valve springs or anything else?

also, if i need new valve springs, does anyone know what size i would need?

i found some elgin pro stock performance valve springs for cheap.
it says they will handle up to a .505 lift and are 1.494 diameter.
95# at 1.650
270# at 1.200
coil bind 1.085

will these work?

On the end of the box should be the "cam card" it should have some suggested part no.'s on it. It's been a while since I got an MP cam, but all of them I've got had this info on them, hang onto that card too.

 

[spudsterier]

i dont think i will end up getting the cam for a while and i wont have to worry about the springs for a while either....

they guy i was going to buy the cam from wants $26 to cover shipping....
i cant bring myself to pay that much

 

[rumblefish360]

Is this a used cam?

Purchase a new one when you have the money. Get it in a kit like in example, how Comp Cams does it. http://www.compcams.com/DefaultWide.asp

 

[fishy68]

There allot better cams out there than the old 284/484 grind anyway so if he's trying to soak you on the shipping I'd forget it and do what Rumble suggested and go with a new Comp kit. The XE cams are a real good design. If your not a Comp fan Lunati also has some good offerings. JMHO

 

[spudsterier]

well i just said hell with it and paid the shipping....the cam is used, but i only paid $66.15 with shipping
but im thinking about just reselling the cam once i get it and not even worrying about getting a cam for a while....

the money i would spend on a new cam could go towards some interior that i need.....not to mention the price of valve springs and what not....