rebuilding the v8 motor(lower end)

[97shobroken]

ok well first of im needing new crank and connecting rod bearings. i been told that ther is some other ford car that use's the same bearings and its cheaper anybody know?

anyways if not what is the part numbers for these parts for all the lower end bearings. and were can i find them for a good price.

 

[Ian Macoomb]

I think the 2.5L Duratec in the Contours, Cougars are similar.

I would try rockauto.com or fastpartsnetwork.com (Torrie should be able to get you all the part numbers and a good price too). Might want to check V8sho.com first.

 

[Mr Anonymous]

As I mentioned in your other thread, rebuilding a spun bearing motor is not economically feasible. Better off finding a new motor. I believe there are still new short blocks on eBay. Problem is the head has probably taken a beating from the piston with the spun bearing (that's how little piston to head clearance there is in these motors) so you'll likely need another head as well.

 

[97shobroken]

As I mentioned in your other thread, rebuilding a spun bearing motor is not economically feasible. Better off finding a new motor. I believe there are still new short blocks on eBay. Problem is the head has probably taken a beating from the piston with the spun bearing (that's how little piston to head clearance there is in these motors) so you'll likely need another head as well.

like i said im gonna fix it after the cam failure the car ran great till it spun a bearing now that it did so it bent the connecting rod..... ok on any other car/engine you can do this no prob why are you giving me such a hard time. its my car and if it dont work out damn it only costed 500$ or so to get it on the road. im getting the crank takin care of its gonna be ether polished cuz its not really bad lookin. or its gonna be ground and over sized bearings put in so stfu about it and let me be.

 

[Off Road SHO]

Don't say we never warned you. He's just trying to save you some money. With the STFU comment, you're not likely to get any advice from anyone. If you're not looking for advice and just want to "talk" to yourself, no problem.

Tom

 

[97shobroken]

Don't say we never warned you. He's just trying to save you some money. With the STFU comment, you're not likely to get any advice from anyone. If you're not looking for advice and just want to "talk" to yourself, no problem.

Tom

it has nothing to do with help he is replyin to another post how does he know i didnt get a new used motor and wanna rebuild it



and y cant no one answer my ? about y is so many people sayin dont rebuild it when you can rebuild any other motor that has spun a bearing.

 

[sho'd]

it has nothing to do with help he is replyin to another post how does he know i didnt get a new used motor and wanna rebuild it



and y cant no one answer my ? about y is so many people sayin dont rebuild it when you can rebuild any other motor that has spun a bearing.

first off, take a breath, these guys know ALOT about SHO's, there not trying to dis you, they have "been there done that" you would be wise to listen to there opinions on this subject, wait till you see what headwork on these motors is worth, the point being, it is more economic to get another motor and drop it in, believe me, i have herd stuff i didn't want to hear, and thats just how it is. trust me, people here have lives, they are not paid tech's, but don't let that fool you, they know more about these cars and motors than most shops. and beleive me, if it's not what you wanna hear, it's not worth it to have remarks that have a sacastic edge to them, you will just give yourself a bad rep. Anyhow like i said, these guys are giving of there time to help, you asked, they are answering. they won't tell you what you want to here, but they will tell you whats what. Peace.

 

[LJRuddy]

and y cant no one answer my ? about y is so many people sayin dont rebuild it when you can rebuild any other motor that has spun a bearing.

In the 3.4 V8, the clearance between the piston TDC and the bottom of the head is so minimal that a spun rod bearing will cause the piston to slap into the head every rotation. This is why you dont see any custom cam grinds for the Gen 3 SHO. If you were to add any duration or extra lift. Adding any of this will cause the piston to slap into the intake/exhaust valves. Even though you have a completely new bottom end, you would still need to buy a cylinder head as well. Yes, you can easily rebuild a 3.4V8 that has a spun bearing. However, it is simply not cost effective to do this. Doing so will cost you more than the car is worth. It is easier to located a new engine to drop in instead.

 

[SHOZ123]

You can get stock or one size over rod bearings at www.rockauto.com. They are cheap. The rod bearings are the same as the Duratec 3.0L. Don't know about the main bearings.

 

[97shobroken]

In the 3.4 V8, the clearance between the piston TDC and the bottom of the head is so minimal that a spun rod bearing will cause the piston to slap into the head every rotation. This is why you dont see any custom cam grinds for the Gen 3 SHO. If you were to add any duration or extra lift. Adding any of this will cause the piston to slap into the intake/exhaust valves. Even though you have a completely new bottom end, you would still need to buy a cylinder head as well. Yes, you can easily rebuild a 3.4V8 that has a spun bearing. However, it is simply not cost effective to do this. Doing so will cost you more than the car is worth. It is easier to located a new engine to drop in instead.

see no one under stands this isnt as bad as it sounds the piston didnt hit the head. nor any valves this whole motor is apart right now. so all is good. only one bearing is spun so im just gonna take it as a rebuild. also connecting rod got bent idk how maybe from my cam failure that i fixed. and then it beening bent spun that bearing. so that would be y it didnt hit. i understand they know alot im not tryin to get bad rep or anything just tryin to fight and prove it can be done if no one does then no one knows.


if they have prof it dont work then fine i will beleave them but untill then im not so dont hate me cuz im fighting my side and asking for parts.

 

[97shobroken]

You can get stock or one size over rod bearings at www.rockauto.com. They are cheap. The rod bearings are the same as the Duratec 3.0L. Don't know about the main bearings.

any year???

 

[97shobroken]

i know im new hear and dont seem like i know much but i know alot and have had this car apart so many times its not funny i could do this with my eyes closed and yea i have only owned one sho in my time but think of this putting 10,000 in to a car in parts not so much breaking stuff sensors, getting the cams welded and fixing the one that spun. witch works very well. and having the heads all redone from the cam failure witch the car ran great after. and then drivin one day boom tick tick tick the rod was knocking and then i parked it right away. been sitting 2 years since and then i just found this site like 8months ago and its been alot of help.

 

[LJRuddy]

Im pretty sure any year duh-tech 3.0 will work fine for rod bearings...


And as for my last post and the others who have posed similar to what i said... Well you never told us that the heads were not damaged. We assumed, based on ALL other cam failures/rod bearing failures on 3.4 V8s that the heads were destroyed.

 

[97shobroken]

Im pretty sure any year duh-tech 3.0 will work fine for rod bearings...


And as for my last post and the others who have posed similar to what i said... Well you never told us that the heads were not damaged. We assumed, based on ALL other cam failures/rod bearing failures on 3.4 V8s that the heads were destroyed.

nope this car was cam failed then fixed drove for about 2 months then spun a bearing i know i didnt say anything about because i wasnt askin about any help for that i was just wanting to know if anyone knew the specs on what parts i was askin. and someone came in and was flaming me and i started to explain back to what he was complaining about it not working sorry but its not really my fault.

 

[naval-avi8or]

might wanna find a crank from a cam failed engine. I've been warned about regrinds on SHO motors not being a good thing (will fail again). Shouldn't be hard to find a used crank.

 

[ruWelded]

Ray at Midnight Auto has a crank.

http://cgi.ebay.com/ebaymotors/96-9...dZViewItemQQcategoryZ33616QQitemZ320094971539

He also has rods.
http://cgi.ebay.com/ebaymotors/96-9...dZViewItemQQcategoryZ33623QQitemZ320040807863

He has a few blocks and had a short block.

It looks like he is having a 25% off sale.

Ray, do you have an update on your project?

 

[97shobroken]

Ray at Midnight Auto has a crank.

http://cgi.ebay.com/ebaymotors/96-9...dZViewItemQQcategoryZ33616QQitemZ320094971539

He also has rods.
http://cgi.ebay.com/ebaymotors/96-9...dZViewItemQQcategoryZ33623QQitemZ320040807863

He has a few blocks and had a short block.

It looks like he is having a 25% off sale.

Ray, do you have an update on your project?

yea i already got a connecting rod from him he's the one that said something about another ford make car having the same bearings as the 3.4 sho.


i was thinking about getting that crank but i been told mine only needs cleaned up that its not in bad shape witch im very surprised.
but we see.

 

[97shobroken]

now do you guys think it could be done.

 

[Off Road SHO]

If you say it can be done, well, I guess it can. You bent a forged steel rod and you don't think anything else is harmed?

Tom

 

[sho'd]

If you say it can be done, well, I guess it can. You bent a forged steel rod and you don't think anything else is harmed?

Tom

was kinda wondering the same thing.