Honda K-Series Engine Swaps: Upgrade to More Horsepower & Advanced Technology

Can I import a Honda NSX from Japan?

Honda NSXs (NA1/NA2) were built from 1990 to 2005. US-market NSXs were sold domestically, but JDM examples with different specifications (including manual-only NSX-R variants) are desirable. All pre-2001 models are freely importable under the 25-year rule. The NSX is considered a straightforward import — no major compliance barriers — but values are high, so source through reputable brokers and prioritize low-mileage, well-documented examples.

What engine is in the Honda NSX?

The NA1 NSX (1990-1997) has the C30A 3.0L DOHC V6 making 270 HP in USDM spec. The NA2 NSX (1997-2005) has the C32B 3.2L V6 making 290 HP. Both use VTEC, titanium connecting rods, and all-aluminum construction. They're among the most refined naturally-aspirated Honda engines ever built.