390 stroker engines

[RICK LAKE]

wrench87 I just got back from Run&Gun with my car. The motor has a stroker kit from Barry R. That works great. 4.25 bore and stroke with 10.2 - 1 compression. I am running a small roller crane cam(hydro) I have not had time to get back to the dyno guy for a tuneup. By the seat of the pants I am guessing another 50-60-tork and about 70-80 ft of torque. This is from 368 hp & 466ft. Car is smoking the tires in 2nd and 3rd (racing auto cross). Build a stroker motor. If you can get a 4.25 crank with BBC rods in it, DO IT. Dont worry about 500HP. Torque moves the car, not HP. 6,500 rpm limit. Barry's kit bolted right in the shelby block with no problem. Breakin was Good. Will get the car to the dyno in a couple of weeks for a tuneup. The cam is 587-607" and has a nice idle. The extra 57 cubes help also, from 427 to 482. I got a hydro roller cam from KCR, this is for my next motor, a 496 with a larger stroke and small bore. The best thing I can say is build the 390 to what you want or can aford. Get a trans and rearend ratios to match the power range in the motor. If you are going racing, stay with the small blocks, they are cheaper to run and make more power per cube than a FE motor without 20 grand worth of work. Windage tray a must, I have a canton one. It will need to be modified for a stroker motor. ARP the whole motor and follow the instructions for stretch bolts on the rods. The 4.25 to 4.125 loss of power would be about 15-18 hp and 30-35ft of tork. Rick Lake