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Old 03-02-2011, 08:56 PM   #1
Stealth_RS
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Default First enging build need some noob advice W/ Pics

Alright long story short my 140k miles engine developed some serious knocking in my last AutoX

so I bought this used 35k short block want to know if there is anything I should look for before I go ahead and swap it with mine. Planning to send the heads to a machine shop to have them looked at.

Block came with water and oil pump, I was thinking of doing 08 oil pump and new water pump. Should I run the the ones on the block or new ones?

here are pics. All advice will be appreciated








Also I have read many post i could find about builds, just looking for some direct advice.
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Old 03-02-2011, 09:26 PM   #2
BlackFighter
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Since you bought the block used you have no idea if the ringlands are ok or not. Since it is out i would take out the pistons and inspect them, and the bearings, and if they are stock i would put them in the trash and install some nice forged ones. Also get a set of ARP head studs since the heads are off. Also change the water pump to a Gates one and inspect the pullys.
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Old 03-02-2011, 10:06 PM   #3
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yes it's quite the risk to just throw it in there. At the minimum pull the pistons to check them but I wouldn't even recommend that. New bearings, new rings, and a clean and hone would only set you back about $500 if can do the assembly yourself. For another ~550 you get forged pistons (and I'd step up the bore size at that point to get a good fit).
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Old 03-02-2011, 10:34 PM   #4
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Quote:
Originally Posted by jamal View Post
yes it's quite the risk to just throw it in there. At the minimum pull the pistons to check them but I wouldn't even recommend that. New bearings, new rings, and a clean and hone would only set you back about $500 if can do the assembly yourself. For another ~550 you get forged pistons (and I'd step up the bore size at that point to get a good fit).
That isn't always needed. The rest of it I do agree with. I'd have a machine shop measure the bore and then see if you can still have a good PTW clearance on 99.5mm. If so, he can still keep another rebuild in the block.
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Old 03-03-2011, 03:26 AM   #5
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When you're moving parts over from your original engine don't forget to clean out everything out and buy a new oil cooler!
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Old 03-03-2011, 10:33 AM   #6
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Well engine did come with a 30 day warranty so I was not planning on tearing the block apart. I was going to clean it and install it as is.

So I should deff do new oil pump and water pump, also about the pulleys how do I know they are good or not?

Is a new oil pickup tube a must? was planning to install one for safety sake.

Also should I go with a 02-05 clutch or a 06-07 one? I have my 04 transmission.

Last edited by Stealth_RS; 03-03-2011 at 10:47 AM.
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Old 03-03-2011, 11:42 AM   #7
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which oil pan/pick up tube do you have?

Should be the old EJ20 style which isn't known to have the save issues as the EJ25 pick up tube.
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Old 03-03-2011, 02:18 PM   #8
Stealth_RS
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the shortblock has the stock 07 EJ25 oil pan
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Old 03-18-2011, 03:48 PM   #9
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You can remove the pistons without splitting the block to have a look...
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Old 03-18-2011, 08:45 PM   #10
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I would definatly take the pistons out and get a forged set. It would suck if you did all that work and it had a cracked ringland.
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