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Short vs long valves

Aeroelastic

Well-Known Member
Joined
Oct 13, 2018
Messages
283
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uk
All gurus, I am aware there is a short and long valve versions of the kz te head. From an Aussie website:
Short valve piston looks like this:
FD8C2437-8100-402B-9C2D-5734D86AC680.png

And long valve piston:

28D51BF2-038C-4EFA-88C6-4F8DEDD48070.png

But how would I know which one mine is (without taking the head off)? Is there a specific year when Toyota changed this?

Mine is a 1996 Prado with intercooler.

And I guess if long valve is used in short valve piston, it will cause damage? But not the other way round?
 
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