Honda K-Series Engine Swaps: Upgrade to More Horsepower & Advanced Technology
Frequently Asked Questions
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.
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Next: plan the move
Found the car. Understand the handover.
Before making promises about collection, coordinate the inspection, paperwork, seller release and transport. Give each part of the purchase its own check.