Features of Note:

• Notice the solid lifter valley with oil return at the ends of the block.
• Notice the knock sensor provision

Features of Note:

• Notice the six bolt holes per cylinder
• Notice bridged water passage on the deck
• You can see the "Power 6" cast on the side (between the core plugs)

Features of Note:

• Notice beefy main webbing with 4 bolt mains
• Outboard bolrs are splayed
• Oil Pickup mount is not like the stocker and has to be added
• Notice underside of lifter gallery is much like the later turbo production blocks (solid casting).

Features of Note:

• Notice no turbo oil return hole (top left of block)
• Very heavy ribbing for strength

Features of Note:

• Rear main is pretty beefy
• Notice cast in ribs for strength and rigidity.
• You can see the knock sensor provision

• Casting numbers on the front just in front of the front intake seal
• Casting indicates 3.8 displacement and 0012 casting

• Casting numbers on the rear of the block on driver's side just in front of bellhousing
• Casting indicates 3.8 displacement and 25500012 casting