The L67 has a few differences.
1. It has a supercharger, Eaton M90.
2. It has a different LIM.
3. It has different LIM gaskets
4. It has 36Lb injectors
5. The heads are machined so the injectors are mounted in the heads at the beginning of the inlet port.
6. The balance bar is different.
7. The cam timing is different.
8. The pistons are different.
9. The gudgeon pins are different
10. The connecting rods are different.
11. The harmonic balancer is different.
12. The coil packs are different.
13. There is a second serpentine belt .
14 There are additional pulleys for the supercharger.
15. The CR is different.
16 The rocker covers are different.
17. The water cooling system is different, thermostat at the back of the engine on the passenger side, water from the heads comes out of the rear water ports not the front and the water is returned via a pipe that runs from the back passenger side to the front on the drivers side.
18. Spark plugs are different.
19. Fuel rails are different.
20. The l67 has BOOOOOOOOOOOOOSSSSSSSSSSTTTTTTTTTTTTTTTTT!!!!!
Beside the above, they are basically the same motor:hmmm: