Factory forged 440 crank garage prep??
#1480325
08/05/13 10:27 PM
08/05/13 10:27 PM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
OP
master
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OP
master
Joined: Feb 2011
Posts: 4,302
Nebraska
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Was thinking about doing a few things to my stock 440 crank I have to kinda "prep" it before taking it in to get the counterweights turned down and journals machined for my 400/451 build. Then I stumbled on to this write up from HR http://www.hotrod.com/howto/7234_crankshaft_prep/ and it pretty much says what I was already thinking. Dont know if I have the marbles to drill NEW holes in the rod pins though. My grinder does have a new disc and my safety glasses are clean...
Mopar to the bone!!!
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Re: Factory forged 440 crank garage prep??
[Re: 72Swinger]
#1480326
08/05/13 10:48 PM
08/05/13 10:48 PM
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Joined: Jan 2003
Posts: 11,733
Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,733
Portage,michigan
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  Great post!! You sir are a hot rodder, it doesn't get any better than that 
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam, footbrake street/strip car
Best so far, 10.32 1/4
1.41 best 60 foot
6.56 at 104.17
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Re: Factory forged 440 crank garage prep??
[Re: StealthWedge67]
#1480328
08/05/13 11:08 PM
08/05/13 11:08 PM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
OP
master
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OP
master
Joined: Feb 2011
Posts: 4,302
Nebraska
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Thanks for the positive response guys! What the hell right? Especially since with a much lighter rod/piston assembly than a stock 440, cleaning things up should only help it balance easier for my machinist.
Mopar to the bone!!!
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Re: Factory forged 440 crank garage prep??
[Re: StealthWedge67]
#1480329
08/05/13 11:28 PM
08/05/13 11:28 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I do a lot of that on my stuff... plus I turn the balance weights down on the lathe... then after that I take in for balance.. one thing they dont do that I have done on a few is to cut the back of the crank to more of a point(like the front).. think sail boat traveling through the water.. it separates the water in the front then lets it slide back together without a wake... unlike a power boat 
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Re: Factory forged 440 crank garage prep??
[Re: Cab_Burge]
#1480331
08/05/13 11:52 PM
08/05/13 11:52 PM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
OP
master
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OP
master
Joined: Feb 2011
Posts: 4,302
Nebraska
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Quote:
I have a 400 block 451 C.i. motor in my shop now that I built for customer a long time ago, I treid to get him to have the stock 440 crank offset ground to BB Cheyy rod journal size and increase the sroke to 3.91, he wouldn't go for it  I've had several stock 440 cranks for 440 blocks offset ground for the 3.91 stroke and used the aftemarket 7.100 long BB Chevy type rods I'll never waste another stock steel 440 or 426 Hemi crank again, unless it is for NHRA stocker or SS motor, it will be offset ground to at least 3.91 stroke, stroke it for power, maybe longer to 2.10 or 2.00 size  
Cab I agree with your thinking 100%! This engine is not being built for low E.T. at the strip. It is for my road course/street/autox Dart and will be using a FAST EZ efi which is supposedly only capable of supporting 600hp. I already have the 72 block that I acquired about 15 years ago for free, ESP rods that I bought probably 10 years ago, a new set of 4.375/.990 1.32CH Diamond pistons I bought from a gent on here for $300 and as of this afternoon a slightly rusty forged 440 crank that was also free fifty free. Im on a pretty tight budget and so far im doing pretty good lol! If I started off with only a crankshaft and a block I would take your suggestions and go with them with no hesitation.
Mopar to the bone!!!
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