500 head ?

[richard]

ive got two engine both without heads ?

and thats how i identify the engine ??

how do i identify a 500 head ?? please ?

and how do i identify a 500 engine ?


anyhelp would be great

thankyou

richard

[PaulB]

Both the crankcases and the heads have the engine type on them:

110 for a 500 engine
120 for a station wagon
126 for a 126 (652cc heads also have a 650 mark)

You can also measure the bore:

479cc: 66.0mm
499cc: 67.4mm
595cc: 73.5mm
652cc: 77.0mm

There are differences between the earlier and later 652cc heads - the later ones are filled in a bit to raise compression (i.e. no squish band).

BIS engines are of course steam powered and leave a puddle of oily water wherever they are left.

Hope this helps