If  there  is  anyone  out there that is doing  a I-4 conversion them
self's.You are  wondering how to  get around the dipstick problem.Go to your
local vw dealership get them to  order the  replacement one that plugs into
your stock location in the  side of the block.Now for the sleeve  that you
will  have to make take the  old dipstick out  that  came with your  block
machine the end  off where it goes into the  block and open the hole up till
the new dipstick fits inside it.Drive it into  block.TADA no plastic
dipstick/filler neck.If you need cover for the covering the hole and you
cannot  find one  email me for 8.00 plus shipping I will send you a block
off stainless steel plate.
Darrel Combs
German Air Products
3263 Doris acres st
Asheboro nc 27203