Magnum camshaft questions

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MagnumBarracuda

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The pictures above are from my 5.9 magnum. It is a 360/380 crate engine. I am upgrading the cam in this engine. Is this a magnum cam or an LA cam? If i order a new magnum cam and timing gears for a magnum will this all go back together and work, specifically with regards to the manual fuel pump?
 
Pictured is a long snout LA roller cam with eccentric to drive a mechanical fuel pump. Magnum engines are short snout cams with no eccentric. Hughes engines
does sell an add adapter magnums to run a mechanical fuel pump
 
U running a carb or EFI?
what year magnum
hyd roller or???
how do you plan on adjusting your valves
regrind? you will need different pushrods
read slansix64's thread "budget build"
do a search on magnum cams and valvegear
 
Order a LA cam and remember the rocker ratio math!

Cam lift divided by 1.5 (LA) then multiply by 1.6 (Magnum) to equal the new lift.
 
what rumble and lelo said
are you running a carb and mech fuel pump?
I guess you are since you mention manual fuel pump
if so
there you go
do you have the right front cover for manual pump?
now if you are going to regrind the core you have you will need the adapter
new billets are not cheap and not necessary for a mild build
 
Not cheap at all. I’d still go to a new cam. Shipping to and from plus regrind is a small savings of shipping is cheap enough. He can always find a shelf cam and have it altered. Close up the centerline over lap more valve lift or just custom it all the way through.

Wyrm, if he has the LA cam 360/380. (That’s what I thought it was...) That should have the LA front cover.
 
what rumble and lelo said
are you running a carb and mech fuel pump?
I guess you are since you mention manual fuel pump
if so
there you go
do you have the right front cover for manual pump?
now if you are going to regrind the core you have you will need the adapter
new billets are not cheap and not necessary for a mild build
Cam is already a long snout. Wouldn't need adapter. Less there is something about regrinding I don't know. Never had it done.
 
And from the looks of it, pretty healthy as it is.
Didn't the 380 crate have a 288/292/108 in it with advertised lifts of 501/513? Hyup and 9/1 Scr looks like.
So how do you upgrade from that?
Me thinks a bigger cam is gonna need more compression.
Happy Hotrodding
 
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In regards to the rest of OP's question, you can get a any SBM timing chain, should be the same magnum or not. Fuel pump eccentric should be for a LA though if you are going to replace it. Moly coated ones are better.
 
OK I'm up to date on crate engines -carb-manual pump
my question here is how much lift will the stock rockers take?
not that op askeed
I think aj is correct about more duration
depending on if op wants to keep his current torque curve or move it up
I just checked Mike Jones HR webpage and he shows 276, 280, 284 @.006 with 576 lift
ought to pump up a 9:1 motor
anyone know what that cam is at .006?
whats your cranking compression ?
 
At .006? I don’t know what MP rates there advertised duration at. The cams @ .050 is listed as IIRC, 230/236.

IMO, this crate engine really needs a dual plane and a better cam for honest street duties.
Going up the performance ladder......
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230/236 sounds about right for a roller.
That's about what I have but a FTH with a lil more lift.
I wouldn't want anything bigger. It's perfect in my 10.9Scr/clutched/10.97starter-gear, combo.
 
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knock it off with the .050 numbers
no way to compare MP with aftermarket and aftermarket is all over the place depending on "Intensity"
I was asking if anyone had degreed (or cam-doced) the MP cam or knows who ground it
otherwise stick a degree wheel on it and let's find out what we have so we know where to go
+
compression
+
how much the springs, rockers will take,
and
double check the keeper to stem seal
I know Magnums are short and we need to know how much room is available
 
Just so you guys are aware of what's going on. This engine is not going back stock. I have cnc prepped and milled 58 cc aluminum heads, roller rockers. In the process of selecting a bigger cam. I may go with a 408 rotating assembly as well. This build was not stock, is not going to be stock, and is definitely not a budget build.
 
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