1HD-FT plunger stroke ?

[benfun]

Plunger stroke
Europe 1.52 - 1.58 mm (0.0598 - 0.0622 in.)
Australia 1.37 - 1.43 mm 10.0539 - 0.0563 in.

Why it is different ?
Rebuilt 1HD-ft (euro) who is going in to my HDJ 80 -91.(1HD-T) .
Removed the egr and use 1HD-T injectionpump .
Do i use Australia plunger stroke or Euro ?

 

[Rock40]

Emissions, plain and simple. The European stuff was also "blessed" with the EGR circuit and a ton of vacuum wiring.