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  #1  
Old 01-29-2002, 05:59 PM
CL440 CL440 is offline
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Join Date: Mar 2001
Location: michigan
Age: 44
Posts: 95
Default 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.
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  #2  
Old 01-29-2002, 08:37 PM
MoparBilly G MoparBilly G is offline
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Join Date: Feb 2001
Location: Phoenix, AZ
Posts: 223
Exclamation 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.
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Back Halfed, Big Block, Bottle Fed
70 Challenger RT 440 SST
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  #3  
Old 01-29-2002, 09:20 PM
BIG BLOCK BILL BIG BLOCK BILL is offline
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Join Date: Dec 2000
Location: SAN PEDRO,CALIFORNIA
Age: 53
Posts: 105
Default

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

Last edited by BIG BLOCK BILL : 01-29-2002 at 09:28 PM.
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  #4  
Old 01-29-2002, 09:25 PM
hotrod7043 hotrod7043 is offline
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Join Date: Jan 2002
Location: winchendon,mass
Age: 65
Posts: 1,094
Default 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
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  #5  
Old 01-30-2002, 12:15 AM
CL440 CL440 is offline
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Join Date: Mar 2001
Location: michigan
Age: 44
Posts: 95
Default

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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