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Shop genuine JDM Honda B18C engines for sale, imported directly from Japan by JDM Alliance. The B18C is the 1.8-litre DOHC VTEC that made the Integra Type R a benchmark — hand-ported head, 8,400 rpm redline, and the highest specific output of any naturally aspirated Honda four of its era. Every engine here is auction-graded in Japan, compression tested on arrival, and photographed as the actual unit that ships to you.
All B18Cs are not the same engine. The JDM B18C spec R from the DC2 Type R is the one people import — 11.1:1 compression, hand-ported head, higher-lift cams, lightweight flywheel and roughly 197 hp. The B18C GSR-spec (JDM SiR / US B18C1) runs 10.6:1 and around 170 hp with a standard head. The US-market B18C5 Integra Type R is very close to the JDM spec R but with market-specific emissions hardware.
The non-VTEC B18A and B18B from the LS and RS Integras share the block but not the head — they make excellent boosted short blocks ("LS/VTEC") but are not a drop-in equal to a B18C.
Check the head casting and the ECU code on any B18C you are quoted. A genuine spec R head is stamped and the difference in price is real.
| Displacement | 1.8 L (1797 cc) |
|---|---|
| Configuration | Inline 4, DOHC 16-valve VTEC |
| Bore x stroke | 81.0 mm x 87.2 mm |
| Compression | 10.6:1 (GSR) / 11.1:1 (spec R) |
| Power (stock) | ~170–197 hp depending on variant |
| Redline | 8,100–8,400 rpm |
Engines are sold as a long block with the accessories shown in the listing photos. Transmission, ECU and harness are included only where the listing says so. Every unit is compression tested and its serial number is recorded against the listing — we send you photos and the serial before it ships, and you approve before it leaves the warehouse.
Replacement engines carry a start-up warranty of up to 90 days; performance variants carry 30 days. Take local pickup at our Dallas, TX warehouse at 10203 Corkwood Rd, or crated freight anywhere in the lower 48.
Choosing between a B and a K? Read B-Series vs K-Series, or call (469) 570-4113 and we will confirm fitment before you order.
Installing with us? Text your year, make, model & engine code to (469) 570-4113 — fastest response during business hours.
Need a shipping quote? See our Shipping page.
Mon–Fri 9am–6pm · Sat 10am–3pm CT · After hours? Text anyway — we reply first thing.