B-Series Engine Swap Basic Info

[MustardCat]

Want this?

Basic run down and price estimates of what you need to acquire:

B-Series Swap Engine Brackets ~$800
Engine Wiring Harness ~$550
Basic Axles ~$225
Shifter rods and shifter ~$150
Shifter rods lengthening service ~$190
Non-VTEC (B18b) Complete Change Over ~$2200 or VTEC (B18c) Complete Change Over ~$3200
Incidentals ~$500

Non-VTEC Total Cost ~$4500 or VTEC Total Cost~$5600

Of course those are just typical prices, you can save quite a bit by deal hunting. Probably the cheapest way to go is a JDM B20b ($600 shipped) mated to a USDM 94-91 Integra transmissoin. You will have an engine with equivalent power to the B20a/B21a but far better aftermarket and upgrade options, like a VTEC head swap.
You can have working accessories as well, power steering, air conditioning, cruise control. However those will add extra cost as the P/S and A/C require custom lines and modified chassis wiring to work.

Here is a detailed write-up for this swap:

Sorry, currently there isn't a detailed write-up but it is in the works.

Here is a video showing a B20b swap in action:

https://youtu.be/rL5h6hL3hTM

Pros & Cons:

Pro:
Non-VTEC B-series engines are very cheap to acquire
Massive aftermarket support
Doesn't require traction bar
Compatible with stock rubber mounts (Low vibration option)

Con:
Reduced ground clearance (But far better than H-series swaps)
VTEC swaps and parts seem to be more expensive than H-series counterparts

[Wesroehl9378]

Will everthing match up i have a 1991 b21A prelude 2.1 si wanting to swap it out with a 1998 accord 2.3 vetec f23A will the wireing harrnes work and do i have to change computer as well?

[MustardCat]

Swapping an F-series from an Accord is the same procedure as an H-series swap. See this thread for more info on it: viewtopic.php?f=9&t=28