Motor Disassembly

THEREDDEVIL

A Bad seed
Jul 28, 2010
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Godfrey, il
That really depends on who does it and what all you have done. I would say anywhere between $500 and $2000.

Ok thanks josh, at least I can figure that in now. I don't know how guys afford this shit. Its cool when guys put the real world results out there though.
 

JoshH

Daggum farm truck
Staff member
Vendor/Sponsor
Feb 14, 2007
13,714
776
113
Texas!!!
Ok thanks josh, at least I can figure that in now. I don't know how guys afford this shit. Its cool when guys put the real world results out there though.
If you want to start a new thread, some guys who have built their motors can give you some advice on what to discuss with your machine shop. I will be happy to give you some info I learned when I did mine.
 

DetailsUnlimited

Active member
Oct 26, 2009
1,264
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36
Benton, Ar
That would be a good thread cause I'm soon to be in the process of building mine. What needs to be done vs what can be done that will hold X HP level safely.
 

THEREDDEVIL

A Bad seed
Jul 28, 2010
512
0
16
44
Godfrey, il
If you want to start a new thread, some guys who have built their motors can give you some advice on what to discuss with your machine shop. I will be happy to give you some info I learned when I did mine.

Good idea then Jeff can have his thread back
 

05smoker

I'm officially done!
Mar 30, 2007
2,379
0
36
Lebanon, OH
Good idea then Jeff can have his thread back

Pm ecc33. He is currently doing a build and just got the block done similar to Jeff.

My motor is set up similar to Jeff's but i did install main studs. GMS pistons (made by arias) that are also set up with plenty of room to grow. Inspected after last season and all looked great.

Good to hear on yours Jeff. Can't wait to see it shakin in that dragster frame. :happy2:
 

TheBac

Why do I keep doing this?
Staff member
Apr 19, 2008
15,614
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Jeff, what P-t-W and bearing clearances did you decide to run compared to the OEM specs?
 

Stingpuller

The Pusher Man
Jan 11, 2007
2,019
35
48
57
central Ohio
Motor

Piston to wall is .011 mains are .0031 to .0032 rods are just under .003 I run .026 on the top ring and .028 on the sec. Was running piston to head at .035 going to tighten it up to .030. Jeff
 

JoshH

Daggum farm truck
Staff member
Vendor/Sponsor
Feb 14, 2007
13,714
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Texas!!!
Piston to wall is .011 mains are .0031 to .0032 rods are just under .003 I run .026 on the top ring and .028 on the sec. Was running piston to head at .035 going to tighten it up to .030. Jeff
Do you measure that with a ball of clay or ??? I can see easily measuring protrusion, but how to you measure head gasket squish?
 

TheBac

Why do I keep doing this?
Staff member
Apr 19, 2008
15,614
1,869
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Mid Michigan
Piston to wall is .011 mains are .0031 to .0032 rods are just under .003 I run .026 on the top ring and .028 on the sec. Was running piston to head at .035 going to tighten it up to .030. Jeff

Boy, you werent kidding. Its nice to know that these motors should be ok with those clearances even in a racing application. Curious if the extra clearance affected your oil pressure at all and what oil you usually ran?
 

S Phinney

Active member
Aug 15, 2008
4,008
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28
Quncy, Fl
Piston to wall is .011 mains are .0031 to .0032 rods are just under .003 I run .026 on the top ring and .028 on the sec. Was running piston to head at .035 going to tighten it up to .030. Jeff

That is about the same specs that i run except for the piston to wall clearances. That sure is a good bit there. What is the Arias recommended clearance? I run about .030 on the piston to head now. what is the least amount of clearance that you can run there? I hear of guys running .020 there and they claim to not have any issue with contact.
 

Stingpuller

The Pusher Man
Jan 11, 2007
2,019
35
48
57
central Ohio
Motor

I run 15w-40 Mobil delvac oil. Here are a few pictures of a piston and rod.
 

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dordtrecht5

Regular Cabs Rock
Jul 21, 2009
900
0
16
Wherever I am working
Jeff,
I am wondering if those are scar on the rod cap. It doesn't look right in the picture. I like the Mobil Delvac as well. My family has run Mobil for 30 years or more in natural gas irrigation wells. I haven't seen a rod bearing look like that.


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