I've bought a set of new valve spring for a member but don't know which model they are. On the crane website they have 2 different one (one in a kit with titanium retainers) and another one alone... I got mine in a kit box (retainers and spring box) but I just have the springs so I can't compare with model number on the box. Since the spec between 2 sets are not the same anyway to know which one I got ?

thanks

What's the part number on the box, 903-2002 or 903-2003?

Kit (DOHC Neon 420a):
Part Number: 903-2002
Outside diameter 1.065
Inside diameter 0.725
Seat pressure 60# @ 1.535
Open pressure 255# @ 1.063
Coil bind 0.987
Rate 413
Maximum net lift 0.472

Springs from the 2002 kit:
Part Number: 180830-16


Kit (SOHC Neon 420a):
Part Number: 903-2003
Outside diameter 1.065
Inside diameter 0.725
Seat pressure 85# @ 1.535
Open pressure 244# @ 1.135
Coil bind 1.014
Rate 397
Maximum net lift 0.440

Springs from the 2003 kit:
Part Number: 158830-16


I found this info in a matter of minutes on Crane's website, I'm sure you could have done the same.

~Luke
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1969 Cougar - 11.91 - 380HP
2007 GSXR 750
1999 OZ - SOLD - 15.26 NA - 14.71 on 75 shot

Mine is 2002.

Thanks , I dont know... i've check on their website and see that it has de 2002 kit and the part number for the other spring but never saw the other kit with 2003.

Thanks a lot!