A Quick Engine List
Since everyone always asks, "which engine can i put in my 4g?" heres a small list.. feel free to add to it.
direct bolt in engines: (least performance to most performance)
D15B1 -70hp
D15B6 -70hp
D15Z1 - SOHC VTEC-E
D15B2 - DPI, 92HP
D15B7 - 92-95 DX/LX, MPFI 105hp
D16Y7 - 96-00 DX, "DPMPFI" 105hp (?)
direct bolt in performance engines:
D16A6 or SOHC ZC - 108hp, great upgrade from DX/LX engine. cheap.
JDM D15B - welcome to VTEC. nice peppy engine, 125-130hp
D16Z6 - quick, with bolt ons should be able to beat alot of other sport compacts, 125hp
D16y8 - same as D16Z6 but 127hp
DOHC ZC - quick, similar performance to SOHC VTEC but DOHC NON VTEC, aftermarket support not quite as great as SOHC VTEC, 130hp
B series swap (require motor mount kit, shift linkages, a few wiring changes may need to be made as well)
B18A1 - 130hp
B18B1 - 140hp the "LS" engines are great out of the box, even better for turbo applications, and can be found for very cheap. Base model "B" motor swap.
B16A - 160hp, the "popular" B motor. with a B16 swap, you should be eating up almost all V6, and taking a large bite out of stock V8s
B17A1 - same as B16A, slightly more torque
B18C1 - "GSR" 170hp. more torque than B16, overpriced IMHO
B18C5 - usdm Integra Type R 195hp, "king of the N/A streets"
JDM B18C - 200hp (?)
JDM B16B - 185hp Civic Type R engine, overpriced, but nice.
B20B/Z - 126-146hp, welcome to torque. These engines can be found for cheaper than most DOHC VTEC swaps, and should give about the same performance due to their high torque numbers.
H series swap (requires motor mount kit, shift linkages, and a large hammer to beat the crap out of the engine bay as these engines are huge)
H23A1 - 160hp 153tq. "B16 killer"
H22A1 - "MONSTER VTEC" 190-195hp, torque to boot. H22A should be used strictly for drag racing as it is known to be rather heavy.
There are many more engines which can be put into the 4g civic/2g CRX, but require modifications beyond motor mount bolt in kit.
Take your time when deciding on an engine swap, nobody should make the decision for you. Do a little research. Dont you think someone has asked "do you like this engine" before you?