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  #1  
Old 10-06-2016, 09:58 AM
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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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  #2  
Old 10-06-2016, 02:23 PM
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cma cma is offline
350 Buick
 
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isn`t it popular to clean the blocks in acid bath`s?
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Note: Everyone has a plan until they get punched in the face. - Mike Tyson

Cherokee Chief Laredo, 360 cui, selec trac, black, 12/1982

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https://picasaweb.google.com/1019823...eat=directlink
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  #3  
Old 10-06-2016, 06:59 PM
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itselliot itselliot is offline
350 Buick
 
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Location: 49410
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OK,...I am subscribed.................
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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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  #4  
Old 10-06-2016, 07:57 PM
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Quote:
Originally Posted by cma
isn`t it popular to clean the blocks in acid bath`s?

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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  #5  
Old 10-13-2016, 08:59 AM
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I have been working on the block to get it ready for the Machinist.
These drain back holes are scary. It looks like a chunk of cast iron could break off at any time. We don't want any chunks going through the engine so I de-burr all of the holes with my die grinder.




I also cleaned up around the lifter bores.

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  #6  
Old 10-14-2016, 03:15 PM
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itselliot itselliot is offline
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meanwhile .....

I am doing the exhaust manifolds here in VVest Michigan......
(under strict supervision.............;l)
https://www.dropbox.com/s/z69ktz584r...aust2.jpg?dl=0

https://www.dropbox.com/s/tvvou341fk...aust3.jpg?dl=0

https://www.dropbox.com/s/tvvou341fk...aust3.jpg?dl=0
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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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  #7  
Old 10-16-2016, 06:00 AM
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TexasJ10 TexasJ10 is offline
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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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  #8  
Old 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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  #9  
Old 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  
Old 10-18-2016, 06:21 AM
Nikkormat Nikkormat is offline
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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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  #11  
Old 10-18-2016, 07:21 AM
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I ordered Speed-Pro/TRW L2380NF30 for this one because they were less expensive than Wiseco when you add the cost of the rings in.
http://www.ebay.com/itm/Speed-Pro-TR...-/171054512412

Here are the Wiseco pistons but they require expensive rings.
http://www.campbellenterprises.com/a...ons-wiseco.php
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  #12  
Old 10-18-2016, 08:09 AM
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itselliot itselliot is offline
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Matt has the order in process :http://www.bulltear.com/catalog/prod...roducts_id=247
He will ship directly.
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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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  #13  
Old 10-19-2016, 10:51 AM
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The lifters came in yesterday.. I may have a few left over
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  #14  
Old 10-19-2016, 12:45 PM
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cma cma is offline
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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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  #15  
Old 10-19-2016, 02:44 PM
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itselliot itselliot is offline
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I ALWAYS have left over parts when I dive into a project!
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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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  #16  
Old 10-20-2016, 12:48 PM
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Markus is happy because his engine gets some of the leftovers
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  #17  
Old 10-20-2016, 02:39 PM
jcisworthy jcisworthy is offline
232 I6
 
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Quote:
Originally Posted by SC/397
I ordered Speed-Pro/TRW L2380NF30 for this one because they were less expensive than Wiseco when you add the cost of the rings in.
http://www.ebay.com/itm/Speed-Pro-TR...-/171054512412

Here are the Wiseco pistons but they require expensive rings.
http://www.campbellenterprises.com/a...ons-wiseco.php

Wiseco pistons come with rings.
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  #18  
Old 10-21-2016, 06:06 AM
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Yep, it depends on where you order them from.
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  #19  
Old 10-25-2016, 10:30 AM
Nikkormat Nikkormat is offline
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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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  #20  
Old 10-27-2016, 09:51 PM
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highspdlife0224 highspdlife0224 is offline
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Hey! I think I recognize that motor!
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