It would not surprise me if the block had been decked as well as the heads changing the relationship of the port faces on the intake surface. You may need to face the intake and with it all in the truck, trying to measure it, all I can say is good luck.
Reman parts suck.


Cheers, Charlie
If It ain't broke, Modify it!
87 Montero turbo Converted back in Spring1989
95 Montero SR 3.8 DOHC Only one?
93 Pajero 3 door 6G75 Mivec with paddle shifted 5 speed
Then a Gen2 SR with full coil independent suspension.