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How does the scat crank compare strenght wise to a stock 428?
I was thinking of building a stroker and I'm wondering are these scat cranks any better?
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Ask Barry R
ng8264723 Ask Barry R. There is no correct answer.:eek: Which Scat crank?:confused: The case one or the 4340 one? What motor are you looking to build?? Street, Race, or a combo? 90% and 10% street to racing. It's all about how high an RPM you want to turn, How big a motor you want to build, what HP and TORQUE you are looking for. If the motor is built by a real pro FE builder, you can turn 7,500 rpm with the correct setup. I have a standard rule of not turning stock parts over 6,200 rpm. Even blue printed with all ARP bolts and nuts. I also believe in up grading the oiling system with HPHV pumps on any motor I run. Have added oil supply lines in some motors for better oiling to the rear of a motor. For an FE motor, I run HVHP pumps with 100 psi spring. Yes this is hard on the distributor and this has been kicked around on another thread. This choice is yours. I would tell you to get a set of eagle rods and have a complete crank assembly balance from dampener to flywheel, if you run the 428 crank. These rods will save about 100 grams over the stock FE rods of turning in the motor. Easier on the motor and quicker acceleration of the motor. If you are going with a scat crank, stroke the motor to the max. It is easier to detune a motor than to find another 30HP after the motor is built. More torque you have, the easier it is to move your car along. This is IMO.%/ :) Rick L. Ps have a happy holiday
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My buddy is making 760hp on a Scat 4.25" stroke crank. They'll take quite a bit.
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I've gone over 750 on the 4.25 Scat cranks with no apparent problems - tore one down and it still passed mag & looked good. No way to know long term life - these are only out for 3 years... I have not personally run the Scat 428 crank as hard but would expect about the same.
The best feature of the Scat 428 compared to the Ford piece is that the Scat is easier to balance internal. Competitive road & oval track race action is tougher on parts than street use or drag racing. Road/oval racers should look at steel crank options for durability long term. |
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