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10-06-2016, 09:58 AM
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Join Date: Feb 01, 2010
Location: Michigan
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AMC401 Build for itselliot
http://www.ifsja.org/forums/vb/showthread.php?t=179354
Harry brought a pile of 401 parts to me with the task of making a running engine out of it. The block appears to have been Honed but has sat around and rusted up.

http://i625.photobucket.com/albums/tt333/SC397/f89ba18b-621f-4c72-87bb-92e322fe0454_zpse7vln5jh.png[/IMG][/url]

Pulled all of the core plugs out to begin the cleaning process. The oil passage may need some cleaning.. LOL!

It took some heat but I got the coolant drain plugs out and guess what... plugged solid.

Here is the first batch of junk that I cleaned out of the water passages. Most of it was packed around the rear two cylinders like they all are.

Last edited by SC/397 : 10-06-2016 at 10:10 AM.
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10-06-2016, 02:23 PM
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350 Buick
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Join Date: Jan 26, 2012
Location: Austria
Posts: 1,458
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isn`t it popular to clean the blocks in acid bath`s?
__________________
Markus!
Member, FSJ Prissy Restoration Association
Note: Everyone has a plan until they get punched in the face. - Mike Tyson
Cherokee Chief Laredo, 360 cui, selec trac, black, 12/1982
Picture story:
https://picasaweb.google.com/1019823...eat=directlink
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10-06-2016, 06:59 PM
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350 Buick
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Join Date: Aug 28, 2010
Location: 49410
Posts: 1,042
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OK,...I am subscribed.................
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If the PM's are full,...try e mail!
hpschrot@hotmail.com
616 four 03 44 0 five
'78 J-20 401 Q/T not quite stock anymore....Frame off Resto Mod..Super Cab nearing completion. SOMEDAY
"90 GW 360/727/229/3:31s 2" lift (SOLD in 2015)
'78 CJ7 Built from Scratch over a 7 year span.
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10-06-2016, 07:57 PM
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Location: Michigan
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Quote:
Originally Posted by cma
isn`t it popular to clean the blocks in acid bath`s?
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Even a acid bath won't get all of the caked in stuff out. I actually use a screwdriver and chisel it out. Once I get the big chunks out and do all of my prep work I will take it in to the machinist and then he will hot tank it.
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10-13-2016, 08:59 AM
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10-14-2016, 03:15 PM
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350 Buick
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Join Date: Aug 28, 2010
Location: 49410
Posts: 1,042
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meanwhile .....
__________________
If the PM's are full,...try e mail!
hpschrot@hotmail.com
616 four 03 44 0 five
'78 J-20 401 Q/T not quite stock anymore....Frame off Resto Mod..Super Cab nearing completion. SOMEDAY
"90 GW 360/727/229/3:31s 2" lift (SOLD in 2015)
'78 CJ7 Built from Scratch over a 7 year span.
Last edited by itselliot : 10-14-2016 at 04:21 PM.
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10-16-2016, 06:00 AM
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360 AMC
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Join Date: Jan 03, 2002
Location: Houston, Texas
Posts: 2,774
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I've always wondered whether some of the overheating problems on these engines were related to the failure to originally clean all of the casting sand out of the water passages. I have seen it left in even after a rebuild. Glad to see you are taking the time to clean it out.
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* 1981 stepside, 360, 727, 208, almost stock daily driver.
* 1982 Laredo j-10, 360, 727, in rough shape and in the process of being rebuilt with 401, NV4500, Klune,
. NP205,d60 front, d70 rear, fender work and minimal lift. It will probably take 10 years
* 1973 jcab mounted on 1983 j20 frame. 360/t18/208 d44/d60. Almost completed
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10-17-2016, 02:27 PM
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Yep, I spend a lot of time cleaning the blocks.
Here is a shot of the compression ratio calculations. I really like this combo which is basically using off the shelf 1971 401 pistons with the 58cc heads. The resulting compression ratio is 9.66:1. Perfect!
I posted up the internal oil line install on this forum for informational purposes.
http://rebsamcandjeep.proboards.com/...l-line-install
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10-18-2016, 05:46 AM
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Well, everything including a 360 for cma is at the machine Shop. I also have a 360 stroker over there too. Now we wait....
In the mean time, i have a Cross Ram 401 and a 401 for Sunbeam Fanatic to assemble.

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10-18-2016, 06:21 AM
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232 I6
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Join Date: Jan 03, 2015
Location: Evergreen, CO
Posts: 143
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Do you have a source for more early 401 pistons? If so I've got a couple of motors I'd love to send your way for the same treatment.
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10-18-2016, 08:09 AM
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350 Buick
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Join Date: Aug 28, 2010
Location: 49410
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Matt has the order in process : http://www.bulltear.com/catalog/prod...roducts_id=247
He will ship directly.
__________________
If the PM's are full,...try e mail!
hpschrot@hotmail.com
616 four 03 44 0 five
'78 J-20 401 Q/T not quite stock anymore....Frame off Resto Mod..Super Cab nearing completion. SOMEDAY
"90 GW 360/727/229/3:31s 2" lift (SOLD in 2015)
'78 CJ7 Built from Scratch over a 7 year span.
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10-19-2016, 10:51 AM
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Administrator
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Join Date: Feb 01, 2010
Location: Michigan
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The lifters came in yesterday.. I may have a few left over

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10-19-2016, 12:45 PM
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350 Buick
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Join Date: Jan 26, 2012
Location: Austria
Posts: 1,458
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 great!!!
Quote:
Originally Posted by SC/397
The lifters came in yesterday.. I may have a few left over 
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__________________
Markus!
Member, FSJ Prissy Restoration Association
Note: Everyone has a plan until they get punched in the face. - Mike Tyson
Cherokee Chief Laredo, 360 cui, selec trac, black, 12/1982
Picture story:
https://picasaweb.google.com/1019823...eat=directlink
Last edited by DarkMonohue : 04-30-2017 at 05:35 PM.
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10-19-2016, 02:44 PM
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350 Buick
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Join Date: Aug 28, 2010
Location: 49410
Posts: 1,042
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I ALWAYS have left over parts when I dive into a project!
__________________
If the PM's are full,...try e mail!
hpschrot@hotmail.com
616 four 03 44 0 five
'78 J-20 401 Q/T not quite stock anymore....Frame off Resto Mod..Super Cab nearing completion. SOMEDAY
"90 GW 360/727/229/3:31s 2" lift (SOLD in 2015)
'78 CJ7 Built from Scratch over a 7 year span.
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10-20-2016, 12:48 PM
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Administrator
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Join Date: Feb 01, 2010
Location: Michigan
Posts: 926
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Markus is happy because his engine gets some of the leftovers 
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10-20-2016, 02:39 PM
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232 I6
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Join Date: Apr 01, 2016
Location: Amsterdam NY
Posts: 34
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Quote:
Originally Posted by SC/397
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Wiseco pistons come with rings.
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10-21-2016, 06:06 AM
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Join Date: Feb 01, 2010
Location: Michigan
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Yep, it depends on where you order them from.
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10-25-2016, 10:30 AM
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232 I6
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Join Date: Jan 03, 2015
Location: Evergreen, CO
Posts: 143
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What do you expect the power output of this motor to be? Will it clear 400hp? 6250 RPM rev limiter capable? If it's not what would you change to make it rev to 6250? I'm looking to embarrass some more imports in the new wagon. 
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10-27-2016, 09:51 PM
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232 I6
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Join Date: Apr 18, 2009
Location: Englewood, CO
Posts: 212
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Hey! I think I recognize that motor!
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'84 J10
'71 J4000
'14 Mustang GT
'20 Jeep Gladiator S
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