Looking through the search area I only saw mentions of the Ford crank. Does anyone in the aftermarket manufactur a replacement thats stronger, or has a longer stroke? Contact numbers and prices would really be great.

 

Forgot to ask what and how much of a differance is there between the cranks in two an dfour valve motors?

 

4V and 2V 5.4 cranks are all the same. Lightnigns and navigators have forged cranks, for all other F150's it is a crapshoot whether they get forged or cast.

Some long stroke cranks are available, but they are a waste in this motor. the 5.4 already has the longest stroke of any production motor and very high piston speeds, a stroker 5.4 requires seasonal rebuilds and immaculate construction and maintenace.

 

So building a longer stroke motor for street use is just dumb and out of the question, unless I plan to do regular rebuilds?

 

Correct. A stroker motor would only be for race applications where you've already done everything else and are looking for that last little bit. For a street motor, you can just up nitrous jets or add boost

 

is there a way to tell if the crank is forged or cast? are the cast good up to a certain hp?

 

the only 5.4 stroker kit I know of is the one Johnny Lightning runs in his truck.

I'm pretty sure it isn't a daily driver

 

Cast crank about $300, forged crank $500+. Be careful Ford will give you the cast crank as a replacement for the Lightning, unless you force them to look for the forged.

The Ford forged crank is excellent and should handle all the HP you can throw at it. Im only aware of one person (Sal) breaking one and that was with a huge shot of N20.

 

yeah sal did a 300 shot to break his crank, on top of probably some ungodly amount of boost. All lightnings come with a forged, probably good to about 1000hp. at the fly

 

Sals crank was cast.

 

Ditto!! it was a cast crank.

 

you can tell by looking at the crank if its cast or forged, when i tore down my 01 motor it had a forged crank in it

 

Forged

 

Just tore a 03 Harley truck motor down, and it has a Forged crank in it.

BTW; I happen to know where a forged crank our of a 03 motor is for sale

 

better question is why was an 03 motor being torn down???