do i need a forged crank or steel??

allcarfan

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#1

• May 17, 2004

• #1

The combo im putting together should make near 500hp flywheel hp..naturally aspirated 347. Engine shouldnt be spinning over 6500rpms. I was looking at two different crankshafts...hawks racing cast crank or a hawks racing 5140 crank. You think the cast crank would hold up on my non-daily driver?

Shane

 

allcarfan

The Answer Man

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#2

• May 17, 2004

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I meant forged or cast

 

1

10secgoal

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#3

• May 17, 2004

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I would think you would get a warm fuzzy out of the forged, but I honestly would leave it to cast if you don't plan on a nitrous shot or anything else....but you know how it always goes. FASTER FASTER FASTER

 

allcarfan

The Answer Man

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#4

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no faster faster faster this time. been there, done that...624.7 rwhp ago

 

2bav8

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#5

• May 17, 2004

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I'd go cast.
Blocks tend to split before cranks let loose.

 

allcarfan

The Answer Man

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#6

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cast it is! thanks guys

 

U

usedtobe 67p51d

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let's tear up golfcourses and build race tracks!

May 17, 2004

#7

• May 17, 2004

• #7

maybe the cast cranks have bad harmonics and bust the blocks? I don't know but would love to build a handfull of motors and do some research

 

allcarfan

The Answer Man

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May 18, 2004

#8

• May 18, 2004

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Im picking up a hawks racing NEW 347 crank for $135...shipping included.

Although, I will probably sell it for a Scat 9000 Crank that I can get brand new for $200

 

1

10secgoal

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#9

• May 18, 2004

• #9

allcarfan said:

no faster faster faster this time. been there, done that...624.7 rwhp ago

Click to expand...

Com'on man. If the money is there, there is always faster If it's not for all out race, why not a 331 or a CHP 342 ? I have seen many articles on the side load problems of 342.Meaning CHP's kit has an offset wrist pin to accomadate. Or you can just go with a slightly smaller stroke to avoid it.

 

allcarfan

The Answer Man

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#10

• May 18, 2004

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...the money isnt there!!!

 

R

rollin68

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May 18, 2004

#11

• May 18, 2004

• #11

2bav8 said:

I'd go cast.
Blocks tend to split before cranks let loose.

Click to expand...

If its a stock block, forged is almost over kill