which engine is this?

[Zanark]

my aunt has an eighty nine vette i wanted to know how much horsepower this one has>>>>> also how much horsepower does the eighty seven vette have i forgot which year they changed the engines to the more potent i think it was either in eighty eight or ninety two but im not to sure

[bmfzo6]

the 87 and 89 have 240 to 250 hp. 92 was the first year of the 300 hp LT1. 90 was the 375 zr1

[jimmyd2]

245 hp L-98