rb25det s2 help

[fsuarez]

so i just recently got a block for a rb25det

going to swap for the rb20det motor i already have in a s13
going to use rb20 tranny.

**note the block doesnt have much**

okay so the guy i got it from said its an s2 BUT it doesnt come with the coil packs, only the spark plugs, i was wondering if i could just use the coilpacks for an s1 and an ignition chip for an s1(have one laying around) instead of buying the ignition coil packs for the s2

[BlewByYou]

Youll need a series one harness, ignitor chip and coil packs. Ecu and cas should be ok with either or as long as you dont have the plastic cas.