coil harness for ls1
Old info I had around on this is:
coil mtg bracket 12563288 or 12562864 from rockauto or gmparts direct ~ $9
Coil harness 15301401 ~ $ 50 each on gmpartsdirect
I found some from a fellow forum member like cnichols offered - saved quite a bit from buying new (maybe you already got some from him - but others might find the info good)
A note of caution - gm is notorious for changing part numbers - and I think the 98 may have a different pn, but should electrically work (just some physical fitment differences with coil brackets if put on center stud covers).
coil mtg bracket 12563288 or 12562864 from rockauto or gmparts direct ~ $9
Coil harness 15301401 ~ $ 50 each on gmpartsdirect
I found some from a fellow forum member like cnichols offered - saved quite a bit from buying new (maybe you already got some from him - but others might find the info good)
A note of caution - gm is notorious for changing part numbers - and I think the 98 may have a different pn, but should electrically work (just some physical fitment differences with coil brackets if put on center stud covers).
