Quote: Originally Posted by Trp97
Your ZR engine is case reed induction and 437cc, the ZL engines are piston port and 436cc, I think it's the "old" ZR engine from '94 & '95.....BTW, pay that guy back for the useless parts you sold him in your other post!
i think it is actually the old prowler engine from the early 90s.
In 98 they had 3 440 liquid engines
Zl 440 piston port engine that made about 68HP
ZR 440 consumer version case reed, low 90s HP (same as the 1997)
Zr440 sno-pro limited build racer with the case reed, power valved 440, that was in the higher 90s for HP