want some more info? i got it!
i've been attacking this build for 3 reasons:
1: i have a BRAND NEW aeb head in plastic in my shed.
2: i have an avh code 2.0 block that needs rings (previous owner dumped the full quart of marvel into a near-empty crankcase, washed the rings out)
3: my 2.0 jetta needs more power and a 16v swap, while cheaper, could end up being MORE work.
here's what i've found:
--eurospec 83mm 5v pistons with 1.8t rods WILL clear the 5th valve with a 2.0 crank.
--your stock 2.0 crank is fine, though 03-up guys may want to ditch the balancer and ginormous oil pump and replace with an earlier design.
--if you use the european head gasket, your compression will stay at whatever your piston is rated for (or so i hear, i have yet to bolt the head on and get hard numbers).
--YOU DO NOT NEED TO ORDER CUSTOM PISTONS (other than bore size)! i am using pistons designed for a 1.8t and they clear just fine with the appropriate matched rods (which is factory for now, new scat rods will go in next week, then the final build takes place). of course, this is turning by hand, but i do not see the pistons going anywhere near over the top of the piston wall. and yes, they are coated with LOTS of assembly lube.
this all being said, i hope it inspires more to take the plunge. it is NOT a cheap proposition (i have $1300 into it so far without rods), BUT it promises more power, a stronger bottom end, and better breathing up top.
oh yeah, there was a factory 2.0 20v, it used 82.5mm bore pistons with a 92.8mm stroke, i am researching it, it is engine code alt. researching this motor will give us all more insight into the swap itself (namely rods).
Modified by mk4_2.ho at 10:08 PM 10-18-2009