you talking about these springs?
http://www.mercruiserparts.com/Show...&bnbr=80&bdesc=Cylinder+Head+And+Rocker+Cover
#17?
check your engine serial number and look here:
http://www.mercruiserparts.com/selectSerailRange.asp?doc_nbr=500+EFI
click on the proper numering and then look up the cylinder head link and your in business
http://www.mercruiserparts.com/Show...&bnbr=80&bdesc=Cylinder+Head+And+Rocker+Cover
#17?
check your engine serial number and look here:
http://www.mercruiserparts.com/selectSerailRange.asp?doc_nbr=500+EFI
click on the proper numering and then look up the cylinder head link and your in business
