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550 ext/530 el tigre 530

R
Oct 15, 2011
80
3
8
washington
i have a couple questions if someone can help me, i have a 92 EXT 550 LC, that recently seized up one piston. i also have a later 80's El Tigre 530 LC motor with bad crank seals, so my question is can i pull the el tigre 530 top end off and put it on the 550 ext bottom end? both motors are carbureted. thanks for the help
 

clutch

Well-known member
Premium Member
Nov 26, 2007
838
200
43
58
Big Horns Wyoming
The old 530 is a piston port with a case reed valve on the bottom side of the cylinder. the 550 is a piston port only. Don't know off the top of my head about bore, stroke piston pin diameter and so on but they will not just bolt on and work.
 
F
Dec 10, 2007
963
54
28
Yellowknife, NWT
X2 ^^ Just the 580 can interchange but even that has different rod pins with the 550. Zr 700 top may work but I believe thats got a far bigger block but I could be wrong.

The 530 is kinda its own motor, just like the 650/700 was. But they all look like piston port motors but have the little reed tucked away.
 
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