i did.... and let me tell you this from first hand experience...it costs A LOT of money and the right setup to get you going quick. if you go with Crower cams, get the 404!!!!!! i had the 403's which were the street/race cams...and ummm... that thing was more like what the stock cams shouldve been from the beginning. the 404s are what you'll want to go fast. then get some higher compression pistons to up the power and torque some more... something like stock GSR pistons should be fine...even the B16 maybe. a ported and polished head with match ported intake manifold is a must along with a ported throttle body. a strong valvetrain is also a must in order to get full use out of the cams to rev higher to around like 7500-8000. itd be a good idea to get stronger rods and head bolts while youre at it. along with balancing the crank... knife edging isnt worth it in my opinion. then in my opinion the 2nd most important part to an all motor B18B setup is the tranny. toss that LS tranny or sell it to some turbo guy. and get yourself a GSR tranny. the ITR and B16 trannies are shorter geared than the GSR, but i think its "too short" for an LS in my opinion. the GSR is nice overall. if you keep the LS tranny, dont expect much from 3rd gear.

with my 403 cams, head job, and some other stuff, i dynoed the car at around 146-148 hp to the wheels @ 6000 rpm. torque checked in at around 127 lbs/ft @ 5200. the car pulled HARD in 1st and 2nd gear, but it let me down almost all the time in 3rd. i ran 15.9@87mph in my B18B sedan.... what a waste of money.

i now have a STOCK B20B and ran 15.4@91mph. the engine swap cost LESS THAN HALF of the money i put into the b18b and is a full 0.5 sec quicker with wheelspin in all of 1st.

b18b, go turbo or squeeze nitrous... other than that, toss it and swap it. :thumbup: