all 1.8T TRANSVERSE engines..
1.8T crankshaft guide - Thanks Bobq
058 Old Style
Came in the 058 external waterpump blocks only in longitudinal cars.(A4, Passat) These all have the “short”, small diameter snout. These cranks are all cast, and come with a toothed 60-2 wheel. There are 2 versions– the difference being the spigot on flywheel end.
Manual These have a pilot bearing pressed into the bulbous spigot on the flywheel end.
Automatic- This has a much flatter protrusion on the flywheel end and no provision for a pilot bearing.
06A New Style
These came in all 06A blocks with internal waterpump, both longitudinal and transverse. (Some codes AWD, AWW, AWP, AMB, AMU, AWM) These all have the “long”, large diameter snout. These cranks are cast or forged, and come with a windowed 60-2 wheel. There are 3 versions
Transverse manual/automatic- These are all forged and have provision for a pilot bearing to be pressed into the bulbous spigot on the flywheel end, but no bearing is installed.
Longitudinal manual- These are all cast and have a pilot bearing pressed into the bulbous spigot on the flywheel end.
Longitudinal automatic- These are all cast and have a much flatter spigot on the flywheel end and no provision for a pilot bearing.
058 and 06A cranks are not interchangeable- they must match the block.
Transverse applications can use any of the above listed cranks.
Longitudinal manual applications can use the transverse forged crank with the installation of a pilot bearing. They may also use the longitudinal automatic crank if an adapter is machined to accept the pilot bearing.
Longitudinal automatic applications can use the transverse forged crank, or longitudinal manual crank if the spigot on the flywheel is machined down to clear the torque converter.
Trigger wheels are physically interchangeable, but early "bar" style sensors can only go in early blocks.
The early toothed wheel is better for SEM applications
is it possible to mount a longitudinal in my tt?
All transverse blocks will work. /thread. AMU's and BEA's supposedly have some reinforcing near the water jackets at the top of the block that standard 1.8T's don't, but you can't see it with the naked eye, and no one has proven the block to be stronger at any power level than a regular block. There is a VW technical PDF that shows the difference, but it's a computer topography image that doesn't allude to much. Long story short, no one breaks blocks unless a rod or main cap lets go, so get whatever transverse block you can for cheapest.