B20B/B20Z block with B-series VTEC head (B20/VTEC hybrid)
into Civic EG (from CR-V)

RD1 CR-V 1997-2001
→
EG Civic EG 1992-1995

Yes: the B20B/B20Z block with B-series VTEC head (B20/VTEC hybrid) from the CR-V (1997-2001) fits the Civic EG (1992-1995) — difficult difficulty, modifications required.

Verdict
Fits.
Verified entry · modifications required
Verified ✓
Difficulty
Difficult
Mods
Required
Category
Engine

Installation notes

Yes — a B20 block from a 1997-2001 Honda CR-V (RD1) can be combined with a B16/B18 VTEC head and fitted to a 1992-1995 Honda Civic (EG) as a 'B20/VTEC' hybrid, using normal B-series swap mounts and a B-series gearbox. Civic-EG forum members describe it as not hard to assemble but expensive to make reliable, because the CR-V block was never designed for VTEC revs. They stress VTEC oil feed, dowel pins, rod bolt machine work and head studs as the key items. The result is more displacement than a B16/B18 swap but with more build risk.
ModsMods req.

Required modifications

Engine build: B20 block from the CR-V topped with a B16/B18 VTEC cylinder head. Forum builders list: VTEC oil feed (drill and tap the head and use an oil line adapter), head dowel pins (flagged by forum builders), ARP head studs and rod bolts (rods must be machined/honed when fitting ARP bolts), a VTEC water pump, a suitable oil pump, matching head gasket, valve springs to suit any cam upgrade. Install: standard B-series mounts and a hydraulic B-series transmission in the EG, B-series axles and shifter, and engine management that can control VTEC (forum members mention a chipped P28-type ECU). Gauges for air/fuel ratio and oil pressure are recommended.

Caution

Important caveats

  • Forum members advise against a B20/VTEC as a first engine build because it takes a lot to keep reliable.
  • Fitting ARP rod bolts requires machine work on the rods, not a straight bolt swap.
  • Wikipedia lists the B20Z with an 89 mm stroke; forum builders say high-rpm reliability depends on rod, piston and balancing work.
  • Sources are forum discussions (Civic-EG) plus Wikipedia; no vendor kit is involved.

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Reference

B16A specs → D14A1 specs → EV specs → LEB-H5 specs → B20Z2 specs → B20B specs → B18A1 specs → D16A6 specs → B18C2 specs → B18C7 specs → D16W4 specs → EA specs → EC specs → ED specs → EE specs → EG specs → EL specs → EM specs → EN specs → ER specs → ES specs → P75 Cylinder Head →

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Sources

3 refs
  1. 01 https://www.forum.civic-eg.com/viewtopic.php?p=302334
  2. 02 https://forum.civic-eg.com/viewtopic.php?p=126492
  3. 03 https://en.wikipedia.org/wiki/Honda_B_engine
Submitted by FitMyBuild research Added Updated

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