what can a turned stock crank handle?
Thread Starter
Senior Member
Joined: Nov 2006
Posts: 504
Likes: 1
Car: 1985 Camaro and 1996 Mustang GT
Engine: 350 4bbl/281
Transmission: 700R4/4R70W
Axle/Gears: 9" rear/8.8" 4.10
what can a turned stock crank handle?
i am shooting for about 6500-7000 RPM and probably 425-450 fwhp.
do you think i will have any issues?
do you think i will have any issues?
Supreme Member
Joined: Sep 1999
Posts: 7,072
Likes: 13
From: Philly, PA
Re: what can a turned stock crank handle?
The power level is not too troubling to me, but the RPM range is. Hopefully we're talking about a factory FORGED crank, not a cast one.
A cast one might live at that RPM range for a while (I build street motors quite regularly with factory cast cranks that see occasional dragstrip runs into the higher RPMs) but you'd definitely be approaching the danger zone. If it's going to see those kind of RPMs for longer periods of time (road racing, dirt track) then you want a forged crank, period.
A cast one might live at that RPM range for a while (I build street motors quite regularly with factory cast cranks that see occasional dragstrip runs into the higher RPMs) but you'd definitely be approaching the danger zone. If it's going to see those kind of RPMs for longer periods of time (road racing, dirt track) then you want a forged crank, period.
Thread Starter
Senior Member
Joined: Nov 2006
Posts: 504
Likes: 1
Car: 1985 Camaro and 1996 Mustang GT
Engine: 350 4bbl/281
Transmission: 700R4/4R70W
Axle/Gears: 9" rear/8.8" 4.10
Re: what can a turned stock crank handle?
The power level is not too troubling to me, but the RPM range is. Hopefully we're talking about a factory FORGED crank, not a cast one.
A cast one might live at that RPM range for a while (I build street motors quite regularly with factory cast cranks that see occasional dragstrip runs into the higher RPMs) but you'd definitely be approaching the danger zone. If it's going to see those kind of RPMs for longer periods of time (road racing, dirt track) then you want a forged crank, period.
A cast one might live at that RPM range for a while (I build street motors quite regularly with factory cast cranks that see occasional dragstrip runs into the higher RPMs) but you'd definitely be approaching the danger zone. If it's going to see those kind of RPMs for longer periods of time (road racing, dirt track) then you want a forged crank, period.
it wont see much street use so i am not as concerned there.
TGO Supporter
Joined: Jul 2003
Posts: 4,803
Likes: 2
From: Grand Rapids, MI
Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
Re: what can a turned stock crank handle?
If it's more drag strip, then you would really want a good forged crank. If it were a daily drive car, I would say no problem. But with the loads on the crank that drag motors go through, I'm with Damon. Forged.
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