just wondering how much would a 91 civic si weight with a b18 non vtec weight?cuz i have a z6 is it a big difference?

 

Numbers I pulled from the internet.
Engines with tranny.

D16Z6 310lbs
B18B1 350lbs
B18C1 (vtec) 370lbs

 

Negligible.

 

i don't know whats the big different between the civic hatch or crx, u said si, but to give u idea what they weight. i weight mine crx si with b16a with me in it. full interior minus ac 2380lb, and i weight 180lb. my friend b18c1 with type r tranny with full gutted car. weight 2073 without driver, with 16' wheels, mine is 10lb 15" wheels, i hope it helped.

 

go weigh it at a truck stop scale