Identify Blocks

[6boltpower]

i have 2 blocks both are 7bolt 4g63.

not 100% sure on the years. but i want to make sure i get the right bearings for the block. one needs to be machined the other looks ready to go but i will still have the machine shop go over it.





first block was pulled from a 98 eclipse gsx. although i ordered the 98 bearings and i returned them because built4g63 told me i has the 97 style block.

this motor detonated^^^


second block was a bare block picked up from some guys trunk

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second blocks pics are here

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[whe3ls]

Correct me if I'm wrong but I think that's a spilt thrust bearing block

 

[6boltpower]

the first one or the second?

 

[whe3ls]

sorry the second one. it has a 3 piece thrust

 

[BogusSVO]

Looks like the second block has the split thrust main installed, but should take the saddle bearing thrust.

I say this because the third main of girdle looks machined with the step for the saddle bearing.

 

[6boltpower]

any guess on the years? could i call mitsubishi with the block numbers to figure that out?

 

[dragonov_elite]

The 10th digit in the vin number on the block should be a W or X for a split thrust bearing block. W=1998, X=1999. Also if the girdle is NOT machined for a saddle bearing then revised 7 bolt us what you have. These things helped me ID my current engine block.

 

[6boltpower]

thank you!

 

[Archer Fabrications]

Fyi.... Built 4g63 is slowboy racing.... They=shit