do i really have a 94 turbo block?

[Greg5OH]

The engine i recently picked up for 100 allegedly came out of a 94 turbo idi.
guy said he sold off all the turbo stuff. Valve cover gaskets have a sticker that say production in 1985, and have no grommet holes. maybe they were swapped.
The number stamped on bank 1 side of the IP gear housing says:

J1176579* (yes has asterix at the end).
any ideas?

 

[IDIoit]

no 7.3D before it?

what size is the oil passage in the back of the block?

 

[Greg5OH]

if there is a 7.3D infront of it it would be completely under the gear housing, could pop it off and check.
1/4" NPT..definitly not 1/8.

Once I find a cheap HD stand for it ill pull a piston and measure the pin size. Then I will know fersher.

 

[ifrythings]

Most part numbers on theses engines end in c1 for NA or c3 for turbo, you should be able to see the whole serial number for the block with out taking the ip assembly off and it will end in either one of those, also the vibration dampener is different between the two.

Note: there are NA engines that use a turbo block apparently though I haven't seen one yet.

 

[laserjock]

Gary swears the turbo blocks have 1/4 npt oil galley plugs. Interesting. It's not a jasper reman or something is it?

Edit: it is possible for the 7.3 to be covered up. You can see on this one it was under the silicone. The paint line gives it away.

You must be registered for see images attach

 

[junk]

Yeah the turbo engines are supposed to have the 1/4" oil port where the turbo oil line goes. Its the port between the intake and the bell housing. As stated the harmonic dampner would be a good visual indicator also.

But yeah pulling a piston is the sure fire method.

 

[Greg5OH]

Ill just wait till i have the block apart and post back.
i mean, could also be a 94 turbo block, with N/A rotating assembly. And the rotating assembly is what we are most interested in really.

 

[icanfixall]

These numbers tell me it is in fact a turbo block. When the 7.3 blocks first hit the roads the searial numbers were 507.079 and went up to 116,330. Then the turbo block started at 116,331 and went up from there. Every oil port on the "turbo block" will be 1/4 inch pipe thread size and not the 1/8 inch pipe thread size of the non turbo blocks. Its not likely someone drilled and threads the oil ports for better supply to accessories. Only way to know is open it up to see the pin size. Even then you will only determine the pin size and not the type crank or the material the exhaust valves were made from. When the turbo came on the scene it had Inconel exhaust valves for the extra heat from the turbo. the oil cooler had more fins per inch for the added heat and the wrist pins went from 28mm to 32mm. Then of course the oil galley ports were 1/4 inch. I have read all I can on the turbo engines and in one article it states that the main bearing webs were increased in size about .125. So far I have not found this to be true. There is no place to measure this either. ALL idi engines use the exact main and rod bearings too