This is topic 99+ Stock GT Crank in forum Tech Talk at Northern California Ford Owners  .


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Posted by bunchmyfunky (Member # 360) on :
 
Has anybody heard of 99+ Stock GT Crank breaking. Do you think it can take 450rwhp
 
Posted by 2000BlackGT (Member # 283) on :
 
dean is running 454 RWHP with a stock crank
 
Posted by 99gt-UJSTLST (Member # 584) on :
 
hey marc the crank will hold fine
my concern would be the RODS I think they will hole 450-475 but I thinh thats pushing it
 
Posted by VortechSaleen (Member # 316) on :
 
Hey Mark,

Other things will go before getting any chance to test the limit of the crank. It should be good to about 500 RWHP or so. Most people just upgrade to the Cobra since their rebuilding anyways.
 
Posted by bunchmyfunky (Member # 360) on :
 
Thanks guys. The rods and pistons are my big concern. I was just trying to figure out if I needed to upgrade the crank also.
 
Posted by TRY2PAZ (Member # 97) on :
 
Mark,
You will save $ if you build your motor first, trust me. The crank is ok, you need to go with a cobra crank when you do a rebuild. Like Dean said, look into the pistons and rings first. HCI cazn do a good build for around 6,000.
 
Posted by 281n/a (Member # 1465) on :
 
mark the stock gt crank can withstand a lot of power your only concern is rods,pistons,oil pump,unless your putting about 600-700 then step up to a cobra crank.
 
Posted by bunchmyfunky (Member # 360) on :
 
Hey Erik,

I saw you in Suisun yesterday you were just getting on hwy12.
 
Posted by 281n/a (Member # 1465) on :
 
what time?was it like 1 or 2p.m?yeah my mom live there so i go there quit frequently.Where were you at?
 
Posted by FasterDamnit (Member # 442) on :
 
My house! [Big Grin]
 
Posted by 281n/a (Member # 1465) on :
 
where is that at?by the brewery,police station where?
 
Posted by FasterDamnit (Member # 442) on :
 
Makes Suisun sound like heaven, eh?

Behind Raleys off of Sunset. Heritage Park.

JL
 
Posted by bunchmyfunky (Member # 360) on :
 
Eric I saw you at Walters Road and HWY12 it was after 1pm. Your car looked good.

Brian I was going to do the bottom end. But I changed my mind. I'm looking at doing a complete motor now.
 
Posted by 4.6 EATIN GM'S (Member # 1633) on :
 
the stock crank will hold about 500 or more hp.
the rods will hold up to about 350 to 400 and thats pushing it.ford really built shitty rods when they did the 4.6's.i just got done building my motor and i went with manley h beam rods,je forged pistons,and a cobra steel crank and with that set i should be able to hold 750 hp with no problem, even though it will never see that much hp [Big Grin] .also if u do the cobra crank u will have to machine the block,its say it is a dirrect replacement but u still would have to machine it.hopefully this helps u out if u have any ?'s give me a hollar.
chris
 




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