Everyone wants an RB26DETT under their hood until they see the receipts.

I've been tracking JDM engine prices for years, and here's the reality check most people need before they start their build:

The engine itself: A used RB26 longblock is running $8-15K depending on condition and mileage. Five years ago this was $4-6K. The golden era of cheap JDM motors is over.

The hidden costs nobody talks about:

• Rebuild kit with quality bearings, rings, and gaskets: $1,500-2,500

• Machine shop work (bore, hone, deck): $800-1,200

• Single turbo conversion kit: $2,000-4,000

• ECU and wiring harness adaptation: $1,500-3,000

• The random parts that "should have been included" but weren't: $500-1,000+

Total realistic budget for a solid street build: $18-28K for the engine alone.

The guys on forums saying they did it for $5K either got incredibly lucky, are running a ticking time bomb, or built it in 2018.

My advice? If you're serious about it, plan your budget, source smart, and don't rush. The best builds take time.

I write deep-dive guides breaking down exactly what each build costs, what parts to use, and where to source them. That's what GearVault is about — real information for people who actually build cars, not just dream about them.