do you have to pull the engine to replace the oil pump? If not.whats the easiest way?

 

No you do not. The easiest way is to take it to a mechanic. but if you dont want to do that just take off everything on that side of the motor and go at it.

 

You will need to take off the belts and crankshaft dampener.

 

And you will need to remove header, oil pan, oil pickup, windage tray

 

Yep anything and everything near the oil pump.

 

Ive got a 94 LS.. can i throw in a gsr oil pump without and modificatoins?

 

yea it will fit no problem all b series oil pumps are the same but it would be better to go with a b16 or a type r they give you more psi than gsr or ls

 

ya u could use any vtec oil pumps, but if u dont know what u doin better have someone with experience do it, basically u have to remove oil pan,windrage tray,timing belt, top mount,crank pulley, all belts..it be about a 4 hour job for me...