THIS INFO IS NO LONGER CURRENT
Go to the 1.8t Swap FAQ linked in my signature for complete and up to date info!!!
Official Mk1 20v Post
This is meant to be a one stop shop for Mk1 20v swap info. If you have anything to add please contact me and I'll get it added to the first post.
--Patrick Schmidt's Swap
--VariantStg3/Tuners Warehouse Vehicle Info Page
--Talx's Swap (thread 1)/Talx's Swap (thread 2)
Engine Bay Shots
Engine Mounts for Codes ATW/AEB/external waterpump blocks:
-OE Mk1 engine mounts will bolt to these blocks, you do not need custom mounts.
Engine Mount for Codes AWD/AWW/AWP/all internal waterpump blocks:
-You'll need custom mounts for the engine
Trans Mount for O20:
-020 trans bolts right in with OE mounts
Trans Mounts for O2A,O2J:
-You will need custom mounts for these transmissions
Who Makes Custom Engine/Trans Mounts??
-WRDUSA.com sells a O2J mount kit
-Vortex user need_a_vr6 can sells O2A and O2J mounts
-Vortex user Pataron can sells O2A mounts
-Dan Bubb <email@example.com> sells O2J mounts
-I(boostin20v) have one set of custom mk1 frame rails modded for mk4 mounts, PM for details
Which 20v engine should you use?
Engine code AEB from the 97-99 Audi A4 and VW Passat.
-use of Mk1 motor mounts, no need for custom mounts
-larger intake and exahust ports:
-big intake ports: 54mm x 26mm (small ports: 43mm x 26mm)
-big exhaust ports: 36mm (small ports: 33mm)
-20mm wrist-pins (later engines have 19mm)
-AEB engines are hard to find, and the euro versions (AGU/ADR) are difficult to find/import
AEB are all cast
AUG auto is cast, AUG manual is forged
AWD/AWW/AWP/AWM are all forged
Users who've asked their names be listed for swap help/info:
Modified by Boostin20v at 3:55 PM 5-28-2008