Re: How to tell if 440 crank is drilled for 4 speed?
[Re: nd65]
#457293
09/02/09 11:05 AM
09/02/09 11:05 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Some warnings from the past: You can't tell by looking. Some crank holes lacked ONLY about 3/8 or so of being deep enough. This is where the idea of cutting off 4 speed shafts got into play, as you don't need to cut off much more than the champher on the front of the shaft.
My recollection is that if a standard pilot will fit, it's OK. Even this has to be carefully done, because many holes were "rough bored" just not to full size. If the pilot bushing "just doesn't want to go in" then it's undersize. You used to be able to buy undersize pilot bushings.
Only way I know of to find out for SURE is to come up with an accurate measurement from the flange on a known "stick" crank and measure hole depth.
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Re: How to tell if 440 crank is drilled for 4 speed?
[Re: 65rbdodge]
#457296
09/02/09 05:07 PM
09/02/09 05:07 PM
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Joined: Apr 2006
Posts: 4,220
West Plains, MO
DrCharles
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master
Joined: Apr 2006
Posts: 4,220
West Plains, MO
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On the other hand, my very first 383 (from an automatic car) had the right size finished hole for the pilot bushing, but was drilled about 3/8" too shallow for my 4-speed! I just deepened it the required amount with a 9/16" drill.  So anything is possible - check it first... and I also recommend the roller bearing that fits in the crank register. -Charles
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Re: How to tell if 440 crank is drilled for 4 speed?
[Re: ogopogo]
#457299
09/02/09 11:09 PM
09/02/09 11:09 PM
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Joined: Jan 2004
Posts: 6,445
Missouri
68KillerBee
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master
Joined: Jan 2004
Posts: 6,445
Missouri
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Quote:
Ive never personally had a problem before with the hole not being deep enough
 
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Re: How to tell if 440 crank is drilled for 4 speed?
[Re: nd65]
#457300
09/03/09 09:05 AM
09/03/09 09:05 AM
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Joined: Jun 2008
Posts: 3,916
usa
lewtot184
master
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master
Joined: Jun 2008
Posts: 3,916
usa
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Quote:
Good suggestion about the test fit.
Good to here from you Lew. I am starting my build. I sold the stroker kit last fall and am doing a budget stock stroke build, but I am going 4-speed.
You know, I forgot all about the Paddock Show. Saturday was my sons birthday so we were up at Muncie for a while. Did they have a good turn out?
Take care.
turn out was about the same as last year. there was an absolutely beautiful '65 plymouth belvedere 2dr post there. this car is a must see; red, black interior, big block, 5spd. the guy who owns it may be in your neck of the woods; lives around Pendleton.
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Re: How to tell if 440 crank is drilled for 4 speed?
[Re: ogopogo]
#457302
09/03/09 02:04 PM
09/03/09 02:04 PM
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Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
DaytonaTurbo
Too Many Posts
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Too Many Posts
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
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Quote:
Ive never personally had a problem before with the hole not being deep enough but many,many times i found the pilot bushing hole was not finish reamed out so the bushing wouldnt fit.If you use a late model roller pilot bearing that fits in the outer bore on the crank you will eliminate that problem.
Never say never. My 76 440 crank does NOT have a pilot hole at all! The later style roller bearing would be my only option to run a 4-sp.
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Re: How to tell if 440 crank is drilled for 4 speed?
[Re: nd65]
#457303
09/03/09 03:46 PM
09/03/09 03:46 PM
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Joined: Jan 2003
Posts: 25,858
Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,858
Rio Linda, CA
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If the crank is finish reamed for a bushing the bore will measure .9375". Cranks that are only pilot drilled but not finish reamed will measure about .8125".
The INTERNET, the MISinformation superhighway
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