Re: My Budget 440 Build (Learning Experience)
[Re: bobs66440]
#1171654
02/12/12 10:01 PM
02/12/12 10:01 PM
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Joined: Oct 2004
Posts: 16,479 Canada
CrAzYMoPaRGuY
I Live Here
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I Live Here
Joined: Oct 2004
Posts: 16,479
Canada
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Cool thread Bob! I have a 440 that's .030" over in my Jensen with the same deck height pistons- I cut my 902 heads .030" and have a 270H Comp cam, I love the way it runs!! Keep the progress pics coming!
CrAzYMoPaRGuY
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Re: My Budget 440 Build (Learning Experience)
[Re: bobs66440]
#1171656
02/13/12 02:57 PM
02/13/12 02:57 PM
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Joined: Mar 2010
Posts: 1,880 Out in Left Field, NY
bobs66440
OP
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OP
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Joined: Mar 2010
Posts: 1,880
Out in Left Field, NY
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After all the bad stuff I am finding with this motor, I decided to check all the main & rod bearing clearances with plastigage. It isn't as accurate as a micrometer/bore gauge, but it's supposedly within .0005", so that's close enough to get an idea of how it was put together. This is what I came up with: Mains .0020 .0019 .0017 .0019 .0018 Rods .0017 .0018 .0020 .0020 .0018 .0021 .0020 It's a little difficult to get an exact (to the ten-thousandths) reading because the lines on the paper aren't broken down that far, so it's really a best guess. I did it with the red and green and the red tended to read the same or a little higher than the green. For instance, I did one with the green and it read .0016. I double checked it with the red and it read .0020. So, who knows which is accurate. These are a little tight compared to what I have read is optimal (.0025-.0027) but I understand that the plastigage tends to read a little on the low side compared to a micrometer/bore gauge. I called Clevite tech and he said it's well within the spec window. For the 440, he showed a huge acceptable range, for example, one I remember is for the mains which was .0008-.0030! So, this is good news and I can move on to the valve train.
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Re: My Budget 440 Build (Learning Experience)
[Re: His and Her 69's]
#1171662
02/20/12 08:28 AM
02/20/12 08:28 AM
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Joined: Mar 2010
Posts: 1,880 Out in Left Field, NY
bobs66440
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Quote:
That oil pan Looks too Clean like it might have been glass beaded. Look in the seams of the baffles and MAKE SURE all the sand in out. That is a Good way to shorten the life of a new motor. We tape the seams off REALLY GOOD before we bead them but we have seen A LOT of pans people don't and that sand will eventually come out and it doesn't break down. It Looks Nice though. Just an FYI for you to look at before it's on the motor and too late. David
Ah ha! Good thought. It definitely was sand or media blasted. I never thought of the residual sand. Good catch! I'll check it today. Thank you!
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Re: My Budget 440 Build (Learning Experience)
[Re: bobs66440]
#1171664
02/28/12 02:14 AM
02/28/12 02:14 AM
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Joined: May 2009
Posts: 36 Virginia Beach, VA
71ChallengerSE
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member
Joined: May 2009
Posts: 36
Virginia Beach, VA
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Quote:
I bought a new Std volume oil pump from Autozone. I went to install it today and there was no gasket or o-ring. And, of course there wasn't one in the gasket kit!! It turns out that no-one includes this in the gasket kits. Why??? Makes no sense!
An engine builder friend of mine ran into this same problem so I made a stack of 50 or so of them. That should last him a year, I hope!
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Re: My Budget 440 Build (Learning Experience)
[Re: bobs66440]
#1171666
03/14/12 10:15 PM
03/14/12 10:15 PM
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Joined: Mar 2010
Posts: 1,880 Out in Left Field, NY
bobs66440
OP
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OP
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Joined: Mar 2010
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Out in Left Field, NY
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Well, I got the custom pushrods from Smith Bros and they look nice. I put it all together and the preload was still a little too much but not bad. It ranged from .053-.075". Comp calls for .040-.060". They said I can use some shims under the rocker shafts, so I ordered some .015" ones from Mancini to get me right in the ballpark. They came in today, so I decided to put it together tonight. I was just going to slap it together without going through the measurement process, but I figured I'd better just in case. Good thing I did. Now it has zero preload! I don't get it. I carefully measured for the pushrod length and it was still too much, and now the .015 shims somehow negates over .050" preload? So I took them out and measured again and now they are in spec...all the ones I measured were around .053" so screw it, I put it together. Done. I used exactly the same procedure to measure, but somehow it's inconsistent. The Mopar rocker shaft setup is generally a good design, but with non-adjustable rocker arms, it's a major pita! The stock Chevy design is much better IMO. Turn the nut to zero lash, crank 3/4 turn down and go on with your life. I learned this trick from my buddy. Put a piece of coat hanger across the head to hold the pushrods in place until you get the rocker arms installed.
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Re: My Budget 440 Build (Learning Experience)
[Re: bobs66440]
#1171668
03/18/12 09:27 AM
03/18/12 09:27 AM
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Joined: Jun 2003
Posts: 3,325 Truckville, the capital of NY
85_Ram_4speed
master
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master
Joined: Jun 2003
Posts: 3,325
Truckville, the capital of NY
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Its getting there Bob.
BTW, all the work on the stock 906 heads cost about $650 plus the cost of springs and special spring shims I had to find, so almost $800 total. They were a mess for sure.
--Chad
Outcast Dodge guy.
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Re: My Budget 440 Build (Learning Experience)
[Re: bobs66440]
#1171670
03/30/12 06:26 AM
03/30/12 06:26 AM
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Joined: Mar 2010
Posts: 1,880 Out in Left Field, NY
bobs66440
OP
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OP
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Joined: Mar 2010
Posts: 1,880
Out in Left Field, NY
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Ok, time for a little update. I have the car up in the air and the motor ready to pull out. I just have to unbolt the engine and trans mounts and she's outta there. Since there was no safe place to store the hood in the garage, the wife let me use the pool table as a temporary prop. lol. I drilled some holes in the windage tray to help the oil drain back better and installed the oil pan. Also installed the timing cover, oil pump & water pump. It's just about ready to paint now. I just have to prime the aluminum heads with self etching primer. I'm going to be a little different and use Chrysler red. You can see the shade on the water pump, which I painted before I installed it. What do you think of my new valve covers? Just the right amount of tackiness with that GOT-EM-FOR-A-BUCK-AT-A-YARD-SALE look, don't you think? LOL! KIDDING! I got those with the car. I'm going to use them to cover the valve train while painting. Nasty!
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Re: My Budget 440 Build (Learning Experience)
[Re: bobs66440]
#1171671
03/30/12 05:50 PM
03/30/12 05:50 PM
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Anonymous
Unregistered
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Anonymous
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I was going to say you just ruined the the whole motor.
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