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#1
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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. |
#2
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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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#3
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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 |
#4
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Re: M.p. .557 Or .590 Cam?
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#5
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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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