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crank end play #2445864 02/03/18 08:59 PM 02/03/18 08:59 PM
Joined: Feb 2007 Posts: 149 England F fastfish451 OP member
fastfish451 OP member F Joined: Feb 2007 Posts: 149 England	what is the max you can run k1 crank 7500 rpm

Re: crank end play [Re: fastfish451] #2445886 02/03/18 09:49 PM 02/03/18 09:49 PM
Joined: Aug 2003 Posts: 43,207 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,207 Bend,OR USA	If it was more than .015 I would find out why The factory service manuals call from .004 to .010 with the stock forged steel BB cranks and the same on the Hemi motors Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: crank end play [Re: fastfish451] #2445889 02/03/18 09:51 PM 02/03/18 09:51 PM
Joined: Nov 2004 Posts: 3,544 Syracuse,NY CompWedgeEngines master
CompWedgeEngines master Joined: Nov 2004 Posts: 3,544 Syracuse,NY	I like to see .006-.008 RIP Monte Smith Your work is a reflection of yourself, autograph it with quality. WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.

Re: crank end play [Re: CompWedgeEngines] #2446084 02/04/18 08:56 AM 02/04/18 08:56 AM
Joined: Feb 2007 Posts: 149 England F fastfish451 OP member
fastfish451 OP member F Joined: Feb 2007 Posts: 149 England	I have 12 thou what do you guys think run or not thanks

Re: crank end play [Re: fastfish451] #2446126 02/04/18 12:04 PM 02/04/18 12:04 PM
Joined: Oct 2004 Posts: 3,097 back in Georgia dthemi master
dthemi master Joined: Oct 2004 Posts: 3,097 back in Georgia	Yes, I'd rather have 12 than 6. I shoot for 10 on race motors typically anyway. They, for me anyway, seem to hold up better with high thrust loads. I even put a slight bevel at the parting line from the oil groove on the upper bearing to the thrust side to send more oil that way too.

Re: crank end play [Re: fastfish451] #2446134 02/04/18 12:14 PM 02/04/18 12:14 PM
Joined: Dec 2007 Posts: 12,587 Great Neck,LI,new york hemi-itis I Live Here
hemi-itis I Live Here Joined: Dec 2007 Posts: 12,587 Great Neck,LI,new york	That seems on the big side,they look good when you take them apart?? HEMI-ITIS has no cure. My condition is fully BLOWN!!

Re: crank end play [Re: hemi-itis] #2446276 02/04/18 03:41 PM 02/04/18 03:41 PM
Joined: Oct 2011 Posts: 3,036 bean town ....Ca W WHITEDART master
WHITEDART master W Joined: Oct 2011 Posts: 3,036 bean town ....Ca	I have run everything From 3 to 7 to 15 to 22..on a Max effort small-block.. I also had a 408 that somehow Wore into almost 30... no magic in the thrust.. I would say usually anywhere between 4 and 12 would be acceptable.. when the motor is running basically you have zero thrust on the back side.. Last edited by WHITEDART; 02/04/18 03:44 PM. In the 8s N/A.with Brett miller W8's 5.07 at 133 at 2700lb

Re: crank end play [Re: hemi-itis] #2446458 02/04/18 08:16 PM 02/04/18 08:16 PM
Joined: Oct 2004 Posts: 3,097 back in Georgia dthemi master
dthemi master Joined: Oct 2004 Posts: 3,097 back in Georgia	They look better the wider I run them. Like the other guy said no magic there, unless there isn't enough, then presto. Lol. More oil helps with huge converter loads.

Re: crank end play [Re: fastfish451] #2447374 02/06/18 02:09 PM 02/06/18 02:09 PM
Joined: Dec 2007 Posts: 12,587 Great Neck,LI,new york hemi-itis I Live Here
hemi-itis I Live Here Joined: Dec 2007 Posts: 12,587 Great Neck,LI,new york	Was this from being to tight? HEMI-ITIS has no cure. My condition is fully BLOWN!!

Re: crank end play [Re: fastfish451] #2447465 02/06/18 05:17 PM 02/06/18 05:17 PM
Joined: Jun 2006 Posts: 5,163 CT GTX MATT master
GTX MATT master Joined: Jun 2006 Posts: 5,163 CT	Here's something I never understood about end play - What are you really supposed to do if you're not in spec? Buy another crank or block? The spec is a fairly narrow window for something you really don't have the ability to adjust. You would think that they would make thrust bearings available +/- .005 or .010. How hard are you really supposed to pry the crank? If you pry enough it seems like they all have more than .010... Last edited by GTX MATT; 02/06/18 05:19 PM. Now I need to pin those needles, got to feel that heat Hear my motor screamin while I'm tearin up the street

Re: crank end play [Re: hemi-itis] #2447488 02/06/18 05:54 PM 02/06/18 05:54 PM
Joined: Sep 2014 Posts: 4,457 Washington M madscientist master
madscientist master M Joined: Sep 2014 Posts: 4,457 Washington	Originally Posted By hemi-itis Was this from being to tight? I've lost thrust bearings over the years (who hasn't) and when they are too tight they smear. That bearing looks like it flaked off. Is it a clevite bearing? Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston

Re: crank end play [Re: hemi-itis] #2448081 02/07/18 05:07 PM 02/07/18 05:07 PM
Joined: Feb 2007 Posts: 149 England F fastfish451 OP member
fastfish451 OP member F Joined: Feb 2007 Posts: 149 England	Bearing I took out had a bit of that flaking going on ?? Clevite. any ideas

Re: crank end play [Re: fastfish451] #2448175 02/07/18 08:14 PM 02/07/18 08:14 PM
Joined: Oct 2010 Posts: 2,408 Ambridge, Pa. R rickraw top fuel
rickraw top fuel R Joined: Oct 2010 Posts: 2,408 Ambridge, Pa.	Buy yourself a set of king bearings.

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