2009 UPDATE : IF YOU ARE A NEW COMER TO THIS THREAD AND HAVE ANY QUESTIONS ABOUT MATING ANY 20V 1.8T CYLINDER HEAD ONTO A 1.9TDI ALH/BRE SHORT BLOCK YOU HAVE 2 OPTIONS:
1. Purchase our custom 20V head studs
2. Helicoil the block with an M12 to M10 insert and use off the shelf ARP M10 offerings for the 20V head.
Both of these are available through INA Engineering so please click the email in my signature!!
Hey guys,seems I have run myself into a jam and would like some advice as to what would be the best way of mating a 20V head onto a TDi block.I made that jump from the ABA 20V because I no longer needed an Intermediate shaft and to mount the ABA into an A4 would require custom engine mount brackets along with other bs which didnt look too appealing to me.The A4 engine mount brackets bolt fine to the TDi block but it appears I have run myself into a couple of issues.
* 1. The ALH TDi Block uses a 12mm x 115mm head bolt where as the AWP (same generation block) uses a 10mm.I have emailed raceware in the hopes that they could custom make a set for me so I am keeping my fingers crossed pertaining to that aspect of this project.
* 2. If you look @ the mage below of the 20V head you will notice that it has only 2 oil return ports on the intake manifold side where as on the TDi block they are 3.I am a bit skeptical to weld a cast iron block internally so below is a poll which I have set up to help me decide which would be more economical to go through with.
Now I am willing to exhaust all options in order to use the TDi block as it is a 236mm block and is just a much cleaner unit to work with.
AEB 20V Head:
1.9 TDi Block on Raceware Headstuds (courtesy of homegrownmotorsports)
Modified by Issam Abed at 9:40 PM 8-29-2009