What Cam LSA for a stroked 427 (482)?

[RodKnock]

Please excuse this Plebian question, but what have most chosen? 110, 112, 114? Thank you for your disclosing your choices.

[Chaplin]

Kind of hard to pick out one of specs of a cam shaft without knowing the rest of the specs because it won't mean much without reference to the rest of the specs. But generally speaking, the narrower the LSA, e.g., 108, the rougher your idle will be, and the wider the LSA, e.g., 112, the smoother your idle will be. As a great generality, I think you'll find most cams are ground with a 110 LSA.

[RodKnock]

Chaplin, thanks. I'm familiar, though not an expert, with cam info, but I'm wondering about what others have chosen. One important piece of info that I left out. I would like to hear the choices of others with hydraulic roller cams, since that is what I've chosen. Again, I appreciate hearing the choices of others, since I'm not as familiar with an FE.

[danc30]

Here is what I have (622FWHP- 630FWTQ) and a nice lopey idle at 850-900 RPMs-
Base Engine- 427SO- 482 CI
Genesis Block (fully machined), Scat I-Beam Rods, Scat Cast Steel Crankshaft (4.250 stroke), Diamond Pistons, Plasma Mahle Rings, Bearings, Melling Oil Pump, Ford Racing Oil Pump Drive, Stock Front Cover, Remote Oil Filter Mount, Professional Products Damper; Zero Balanced, Blueprinted & Assembled
Camshaft Comp Cams Custom Hydraulic Roller Duration-248/252 Lift-.630 Lobe separation 110
Cylinder Heads Edelbrock Stage II (CNC)
Valve Train Erson Rocker System, Comp Pushrods, Crane Lifters
Intake Edelbrock Dual Plane Performer
Carburetor Quick Fuel HP 950
Oil Pan Aviad
Valve Covers Ford Racing Cobra Lemans, Polished
Ignition MSD Distributor, Ford Racing Plug Wires, NGK Spark Plugs, MSD Coil & Coil Bracket
Water Pump Edelbrock Aluminum

[RICK LAKE]

Rod knock KCR has custom cams from Comp cams that are hydro rollers. I have a 482 motor with a small crane 587-607". You have to remember that the larger the motor the more it makes a big cam more docile. I retard the cam to 6 degrees and idles great with just a little lope. The torque is a large flat range. Have not got it to the dyno yet but guessing about 450 hp and about 560-570ft. of torque. I have one of KCR's custom cams for my other motor. Hope to get it installed in the spring. I like 112 LSA on small motors and will go to the 110 on 450+ cubic inch motors. I like just a small lope idle. FI system also helps in idle control and not letting the motor load up. There are some guys on this forum that have gone from .650" lift cams down to the .620"s and are more happy with this motor and only gave up 20-40 hp. The gas mileage doubled and the driviblity improved alot. Matching heads,intake,camshaft, and exhaust for a certain power range is more important than how big is the camshaft. You can 800HP and not get this power to the ground. The life of the motor is also short unless it is a power adder motor with NOS,Turbos, or Blowers. The car will be a handful with the 482. I am very happy with my motor. A ton of torque to blow the tires off, and hauls when the rpm is at 2,600 rpm to 6,200 rpm. I do have some other work done to the heads that IMO help to add power power through the full range of the motor. I get no float od the valve train at 6,200 rpm and the motor is still pulling. I limit my strokers to this rpm and can always change gears from a 3.31 to either a 3.07 or 2.88. The carrier for the 2.88 is a little weaker than the 307 or 331's. You didn't say anything about your car for trans, rearend ratio, Tires, and fuel delivery system, ( carb, fuel injection, webers, etc.) With the size of your motor and running pumped gas, I think you will be happy with a cam in the 600-630". Rick L.

[STEVE POTTS]

Check out my gallery...cam card and dyno results are shown for a 486CI FE with Hydraulic roller cam.

[RodKnock]

It's very interesting. I have a BBC 540 and the cam has an LSA of 114. Specs are 252/260 and .612/.634 and the cam is lumpy, and perfect for me. I believe the cam was installed straight up. A smaller cam is fine for me, less stuff breaks, but I'm trying to get an idea of what's norm with an stroked FE. My objective is reliability and longevity, not huge HP's. Of course, if I can get all three, then.................................all the better.

[RodKnock]

Steve, I like your specs. You made 570 HP at 5,800 RPM with a cam that had a 110 LSA with 242/248 and .634/.624. Very nice solid numbers. Thanks.