Posted By: kilroy
Cam changes or not. - 12/11/11 05:12 PM
BB 440 at 40 over. running eddy heads w 84cc chamber untouched, but harland sharp rockers. Should be right at 10:1 pistons were .007 down when motor was assembled. Street dominator and a TQ for intake. Homemade smallish headers w 3"exh and a X pipe all exits out the rear. 4speed, 3.55 rear. aluminum flywheel.
Motor crank compression checked at 147-150 cold on all cylinders in current config.
Right now
I currently am running a mopar P4120655 cam the ".557" cam.
I couldnt find the intake and exhaust events to link to so someone will have to supply them to me if they have them. But I remember it being somewhere around 252* at .050 but at a outlandish .028/.032 lash.
I also have a comp cam Comp Cam 21-247-4 that I could use. The link has the intake/exh events but its only a 236* at .050 cam which is CONSIDERABLY smaller.
Also being that they are solid cams they act smaller than a respective hyd cam by about 10*, or so Ive been told.
1)What Im looking for is a more Cranking Compression and some more torque. The motor really really move about 6000-7000rpm but we all know on the street about those rpms.
I have all the hardware to run either and can step up on valve springs to if I needed but the motor seems not to float now so...
2)Im also contemplating a backward step to HP exh manifold for the more look stock go for the kill on the street.. I currently dont race (kids, mortgage, etc) but I still love to drive my car.
3)Will I be losing a LOT on the top or will the bottom make up for.
4)Or will I really not be waking it up on the bottom that much?
I know its my style and driving habits but Just wonder what some Moparts opinions might be.
Motor crank compression checked at 147-150 cold on all cylinders in current config.
Right now
I currently am running a mopar P4120655 cam the ".557" cam.
I couldnt find the intake and exhaust events to link to so someone will have to supply them to me if they have them. But I remember it being somewhere around 252* at .050 but at a outlandish .028/.032 lash.
I also have a comp cam Comp Cam 21-247-4 that I could use. The link has the intake/exh events but its only a 236* at .050 cam which is CONSIDERABLY smaller.
Also being that they are solid cams they act smaller than a respective hyd cam by about 10*, or so Ive been told.
1)What Im looking for is a more Cranking Compression and some more torque. The motor really really move about 6000-7000rpm but we all know on the street about those rpms.
I have all the hardware to run either and can step up on valve springs to if I needed but the motor seems not to float now so...
2)Im also contemplating a backward step to HP exh manifold for the more look stock go for the kill on the street.. I currently dont race (kids, mortgage, etc) but I still love to drive my car.
3)Will I be losing a LOT on the top or will the bottom make up for.
4)Or will I really not be waking it up on the bottom that much?
I know its my style and driving habits but Just wonder what some Moparts opinions might be.