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-   -   M.p. .557 Or .590 Cam? (http://www.moparchat.com/forums/showthread.php?t=46099)

CL440 01-29-2002 06:59 PM

M.p. .557 Or .590 Cam?
 
DEBATING BETWEEN THE 312/590 OR THE 296/557 MOPAR SOLID CAM FOR MY BRACKET 440.
EVERYONE HAS BEEN A TON OF HELP THROUGH THE BUILD UP OF THIS MOTOR SO FAR AND I APPRECIATE IT!!
HERE IS WHAT I AM SURE OF:

DUSTER 3200#
-440+.030
-EDELBROCK HEADS(STOCK OR VERY MILD PORT IF $ ALLOW)
-10.76:1 COMP. RATIO
-FORGED CRANK
-CRANE ROLLERS(1.5 OR 1.6 SEE BELOW)
-3800 TURBO ACTION CONVERTER
-4.56 GEAR WITH 29" TIRE
-MI SINGLE PLANE INTAKE
-850 OR 950 (4150) HOLLEY (WHICH WOULD YOU USE)?
-MSD 6AL
-MSD PRO BILLET DIST.
**IM REALLY LEANING TO THE .590 BUT WHAT ABOUT THE .557 WITH THE 1.6 ROCKER? I WOULD HAVE A 296/.594 A DECENT IDLE, GREAT LOW AND MID RANGE TORQUE.
***296/.594 SOUND LIKE GREAT #'S TO ME ALMOST A ROLLER CAM TYPE # WITH LOW OVERLAP(78 DEG) HIGH LIFT AND MODERATE DUR.

MoparBilly G 01-29-2002 09:37 PM

An ultadyne with 1.5's would be better..
 
But if that's the choices, I'd think the 296/557 1.6 rocker combo would be the best choice..especially with that converter.

BIG BLOCK BILL 01-29-2002 10:20 PM

I think it would depend on wether you wanted to do much street driving or not . With a fair amount of street driving I would go with the 296/557 1.6 set up , otherwise I'd go with the 590 . Just my opinion , but I would go with an Isky Z-35 insted of the 296/557 mopar , reason beaing , little more duration at 50 254 vs 252 , a little less lift 525 vs 557 and a much tighter lash .016 int. .018 exh. vs .028 int. .032 exh. , and a tighter lobe center 108 vs 110 the mopar cams are good but the loose valve lash settings kind of blow, there noisy , reduce lift , duration , and increase valve train wear . Just my 02 cents .
As far as the carbs go I'd go with the 950hp if you can afford it they work great .
BIG BLOCK BILL

hotrod7043 01-29-2002 10:25 PM

Re: M.p. .557 Or .590 Cam?
 
Quote:

Originally posted by CL440
DEBATING BETWEEN THE 312/590 OR THE 296/557 MOPAR SOLID CAM FOR MY BRACKET 440.
EVERYONE HAS BEEN A TON OF HELP THROUGH THE BUILD UP OF THIS MOTOR SO FAR AND I APPRECIATE IT!!
HERE IS WHAT I AM SURE OF:

DUSTER 3200#
-440+.030
-EDELBROCK HEADS(STOCK OR VERY MILD PORT IF $ ALLOW)
-10.76:1 COMP. RATIO
-FORGED CRANK
-CRANE ROLLERS(1.5 OR 1.6 SEE BELOW)
-3800 TURBO ACTION CONVERTER
-4.56 GEAR WITH 29" TIRE
-MI SINGLE PLANE INTAKE
-850 OR 950 (4150) HOLLEY (WHICH WOULD YOU USE)?
-MSD 6AL
-MSD PRO BILLET DIST.
**IM REALLY LEANING TO THE .590 BUT WHAT ABOUT THE .557 WITH THE 1.6 ROCKER? I WOULD HAVE A 296/.594 A DECENT IDLE, GREAT LOW AND MID RANGE TORQUE.
***296/.594 SOUND LIKE GREAT #'S TO ME ALMOST A ROLLER CAM TYPE # WITH LOW OVERLAP(78 DEG) HIGH LIFT AND MODERATE DUR.

ose a nf314 ultradyne it will make yu fliy in a bracket car/ muscle motors sells them/ betwen yur 2 choices the .557 with 1.6 rockers

CL440 01-30-2002 01:15 AM

THANK YOU ALL!!
I THINK I WILL ORDER THE 296/557(P4120661), AND DO THE 1.6 ROCKERS.

ONE MORE THING. IS THAT A ONE BOLT CAM??

I WAS JUST ABOUT TO SEND THE ORDER IN TO MANCINI'S AND IT DOES'NT TELL IF IT'S ONE BOLT OR THREE.

MY TIMING CHAIN IS A ONE BOLT!!


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