Morty	52 model 250 327 engine	#1
Just popping in Joined: 2022/8/29 13:47 Last Login : 2022/8/31 18:57 From Poconos Group: Registered Users Posts: 3	Hello , currently working on a 52 327 engine Its at tbe machine shop and my tech is looking for The block crank bore diameter anyone hav this spec Thsnks Morty Posted on: 2022/8/29 16:53

JeromeSolberg	Re: 52 model 250 327 engine	#2
Home away from home Joined: 2016/11/24 12:38 Last Login : 6/14 18:36 From Berkeley Group: Registered Users Posts: 666	Look in the "specifications" part of the 1951-54 Service manual, right here: packardinfo.com/xoops/html/modules/archive/content.php?op=&catID=10&ContentID=4 Posted on: 2022/8/29 17:01

Morty	Re: 52 model 250 327 engine	#3
Just popping in Joined: 2022/8/29 13:47 Last Login : 2022/8/31 18:57 From Poconos Group: Registered Users Posts: 3	Thank you , I have a factory service manual and that spec is not there . Its the diameter of the block main brg circle with no bearing in it They use this measurement to check for crank alignment and they will hone the journal bore to make it straight Posted on: 2022/8/29 17:40

Packard Don	Re: 52 model 250 327 engine	#4
Home away from home Joined: 2014/7/15 13:30 Last Login : Yesterday 21:29 From Cars at Crooked River Ranch, OR (I live in Santa Cruz, CA) Group: Registered Users Posts: 6295	With the bearings in-hand, it should be easy to figure out. Strange they are having the issue as I've had a number of Packard engines rebuilt and line-bored in the process and the question never came up! Posted on: 2022/8/29 17:46
	All generalities are false. Don Pierson Packard / IMPERIAL page CA DMV Licensed Vehicle VIN Verification 1951 Henney-Packard 3-Door Long Wheelbase Air Force Ambulance 1954 Packard Patrician 1954 Packard Patrician Parts Car 1956 Clipper Custom Sedan

Owen_Dyneto	Re: 52 model 250 327 engine	#5
Forum Ambassador Joined: 2007/3/14 18:01 Last Login : 2024/12/15 16:36 From New Jersey Group: Registered Users Forum Ambassadors Posts: 16703	You should be able to arrive at that dimension knowing the crankpin diameter, bearing clearance and bearing shell thickness. You might also need to make an accommodation for the bearing shell "squish". Posted on: 2022/8/29 18:06

Pgh Ultramatic	Re: 52 model 250 327 engine	#6
Home away from home Joined: 2021/7/26 14:34 Last Login : Yesterday 23:12 From Pennsylvania Group: Registered Users Posts: 3001	There are stats in the 51 manual herepackardinfo.com/xoops/html/modules/archi ... php?op=ByYear&catID=24&ContentID=60 Just check if it's the same engine Posted on: 2022/8/29 18:12
	1955 400 | Registry | Project Blog 1955 Clipper Deluxe | Registry | Project Blog 1955 Clipper Super Panama | Registry Email (Parts/service inquiries only, please. Post all questions on the forum.) service@ultramatic.info

Duncan Michael	Re: 52 model 250 327 engine	#7
Just can't stay away Joined: 2009/2/28 20:16 Last Login : 2024/12/14 12:34 From West Bloomfield MI Group: Registered Users Posts: 77	Main bearing housing bore diameter for your engine is 2.9355-2.9360. Posted on: 2022/8/29 18:35

Morty	Re: 52 model 250 327 engine	#8
Just popping in Joined: 2022/8/29 13:47 Last Login : 2022/8/31 18:57 From Poconos Group: Registered Users Posts: 3	Thank you everyone and thank you Duncan Thats what i was looking for Posted on: 2022/8/29 19:15