Ight so i know that the potential of an ls-vtec over a gsr is only in that of a slight torgue gain and a longer power band but what i cant seem to find here or maybe im just not looking hard enough is a quickrun down of a parts needed. of course the b series motor mount kit harness ecu and im sure a little bit of wirnig mabe involved other than that im completely stumped. i have the dohc zc motor in there right now and its putting out around 170 due to a few after market parts im really not going for all out horsepower with the i would be more than content with about 350 horsepower i know its a stretch but do-able right. The ls i have is also non vtec how hard is it to make it vtec i know theres some drilling involed and a head from a gsr may benefit even more so but im totally foreign to the ls motor swap advise will be appreciated

 

I Did A Ls Vtec On My Teg Wasnt That Hard But But Your Gonna Need

 

Whoops Sorry B 18c Water Pump Timing Belt And Head Bolts Which Are A Pain In The Ass To Get Ahold Of

 

Heres a list:
Engine
Tranny
Starter
Alternator
Distributor
Ecu
90-93 Integra axles
90-93 Integra intermediate shaft (make sure its off a manual, there is difference)
90-93 Integra rear trans mount bracket
90-93 Integra upper radiator hose
90-93 Integra throttle cable
Shift linkage, you can use a 90-93 integra and your stock one, you got to cut and weld it or you can just buy a B series coversion one and save the hassle
B series mount kit
Smash in your torque mount in front of motor on cross member
Bang in your firewall on driver side where the alternator goes in

If you stay LS, you dont have to rewire anything as long as your already MPFI. Thats the bonus of staying straight LS

Now onto the LS/Vtec part of your question:
Golden eagle sells everything you need to do a LS/Vtec conversion. As for 300hp I hope you plan on boosting!! Cause your not going to see those numbers staying n/a. Also simple bolts ons are not going to gain you lots of power, I dont care what your butt dyno tells you.

I have a LS powered crx, so if you need any more advice just ask.

 

http://honda-tech.com/zerothread/1676914
http://www.honda-tech.com/zerothread?id=1812388

start reading

 

i appreciate it guys thats gonna give me a big hop on things so i can start knocking things out one buy one and the torque mount would i cut it or just hammer it in or does it really matter and is the area of smashing in the fireall a large area or is it restricted just as deep and as wide as say half the alternator. ill just stay ls and ive got a 1991 honda crx hf so its mpfi snd the harness will just slide right in i suppose. well i really do appreciate your help and i guess i better get to reading

 

You need to pound a pretty decent size dent for the alternator to clear. Also the torque mount can just be smashed in. I ran into the issue of having to cut my crossmember to allow my exhaust manifold to clear. So be prepared for that incase you run into the same issue. Your harness will plug and play as long as you stay obd0. If you stay obd0 make sure the ecu is a PR4 from a 90-91 5speed integra. You can use an auto ecu, but it will throw a code. I just took my blown up motor out of my crx to start building, and threw a fresh low mile LS in there today in under hour and a half. Its not too hard. Just take your time and do it right the first time. If you need more help let me know!