Can you tell my just looking at the exterior of the block, what year it is?

I'm sure it's possible, but not really important. From late 95-up, they're all exactly the same.

Originally posted by DarkOne
I'm sure it's possible, but not really important. From late 95-up, they're all exactly the same.

they may look the same but not all 2gnt 420a's are

95,96 are different from 97+ they went threw a mild upgrade

Originally posted by Skrilla

Originally posted by DarkOne I'm sure it's possible, but not really important. From late 95-up, they're all exactly the same.

they may look the same but not all 2gnt 420a's are 95,96 are different from 97+ they went threw a mild upgrade

BLOCKS
’95 SOHC
The original SOHC block had either a 4667642 or a 4556651 casting number on the upper portion of the block and 4667769 casting number on the bedplate, but the upper portion of the block was unique to this application. It had two holes in the driver’s side (front) for the vent tubes that were part of the aspirator system that was used on the SOHC motor only in ’95.

These blocks also had an oil baffle inside the crankcase that deflected the oil away from the vent holes to prevent oil consumption. And, the notches for the bearing tangs were offset from each other in ’95 instead of across from each other like they were on the later blocks. So, these blocks were all by themselves for two reasons: 1) because of the vent holes and 2) because of the location of the notches for the bearings.


’95-’99 DOHC
The DOHC motors all came with the 4667642/4556651 upper casting and the 4667769 bedplate, but the two holes for the vent tubes found on the ’95 SOHC motors weren’t drilled in the DOHC blocks because they all came with a conventional PCV system from day one. The notches for the bearings were offset from each other on the ’95 DOHC blocks instead of straight across like they were in ’96, so there’s a slight difference between the ’95 and the ’96-’99 DOHC blocks, but they’re still interchangeable as long as you notch the block for the later style main bearings. (See the note on main bearings in the assembly tips).


’96-’99 SOHC
All of the ’96-’99 SOHC blocks used the 4667642/4556651 upper casting along with the 4667769 bedplate. The shelf was still cast on the side of the block, but the holes for the vent tubes weren’t drilled because the SOHC engine came with a regular PCV system starting in ’96. The notches for the main bearings were almost straight across from each other on all of these blocks, just like they were on all the later DOHC blocks.



http://www.babcox.com/editorial/ar/eb80234.htm










_________
96 talon esi-t
san clemente, ca

DarkOne> Screw you guys, i'm going home.
chrysler kid> and fyi i have never HAD to shave.
DR1665> I'm sure your Talon and my Talon are all there needs to be, since we're the only two Talons that really matter around here

Originally posted by sarahdr1665
...some girls like the "nerdy" guys