Which Trucks Came With the 3.4

If you are not certain what is in your truck, start here. The 5VZ-FE was the V6 option across four platforms:

Vehicle Years with the 5VZ-FE Notes
Toyota Tacoma (1st gen) 1995–2004 The volume application. Four-cylinder trucks ran the 2RZ or 3RZ instead.
Toyota 4Runner (3rd gen) 1996–2002 V6 trim. The 2.7L 3RZ was the base engine.
Toyota T100 1995–1998 Replaced the 3VZ-E for the T100's final years.
Toyota Tundra (1st gen) 2000–2004 Base V6. Superseded by the 4.0L 1GR-FE for 2005.

A 3.4 is a 3.4 across all four. Most engine internals interchange, which is why one part often shows a fitment list covering several trucks. You will see the engine written 5VZ-FE, 5VZFE or just 5VZ depending on who is writing it — and plenty of people simply call it the 3.4. They are all the same engine.

Replace It — Long Blocks and Crate Engines

If the engine is tired, cracked or apart on a bench, this is where most people land. Our Stage 1 5VZ Long Block is a complete, ready-to-install engine, not a kit of parts. It is built here on OEM-based architecture with ported and polished cylinder heads, stainless Supertech valves, ARP head studs and precision-machined internals.

People search for this as a “5VZ crate engine”, and that is a fair description — it arrives as a finished long block ready to drop in. Browse the full long block range if you want to compare specifications.

Be honest with yourself about which route you are on. A long block costs more up front than a rebuild kit and saves you the machine shop, the assembly time and the risk of a mistake you only find at start-up. If the truck is a daily driver and you need it back this month, the long block is usually the cheaper answer once your own time is priced in.

Build It — Heads and Valvetrain

The 5VZ responds well to head work, and it is where the meaningful power on this engine lives. The Pro Cylinder Head Set for the 5VZ-FE is our ported and assembled pair, supplied without cams so you can match camshafts to the rest of the build.

The High Performance Pro Valve Train Kit covers springs, retainers and the supporting hardware — do this at the same time as the heads rather than after, because the engine has to come apart either way.

More top-end parts are under engine top end, and our full LCE cylinder head range covers the other Toyota platforms if you are working on more than one truck.

Boost It — Supercharger and Turbo

Forced induction is the single biggest change available to a 3.4, and it is what most people come to us for.

The factory TRD supercharger for this engine has been discontinued for years, which is why so many searches for it end nowhere. The current answer is the Magnuson 3.4L Supercharger System for the 1995-2004 5VZ-FE — an intercooled positive-displacement system that works with the factory engine management rather than fighting it.

Supercharger kits by platform:

If turbocharging suits your build better, see 4Runner 3.4 turbo kits and Tacoma turbo kits.

One order-of-operations note we give everyone: if the engine has real miles on it, refresh the bottom end before you add boost. Forced induction finds every tired ring land and marginal head gasket an engine has, and it finds them quickly.

Let It Breathe — Headers and Exhaust

The factory exhaust manifolds are the restriction on a stock 3.4. Our Tacoma 3.4 headers are the common starting point, and the wider LCE-made header range covers the other platforms.

Doing a swap into an older chassis? The LCE Engine Swap Header is cut specifically for putting a newer 5VZ into a Pickup or older 4Runner, which is a fitment no off-the-shelf header solves.

Maintain It

The 3.4 is a durable engine that asks for a few specific things on schedule.

The timing belt is the big one. This engine uses a belt, not a chain, and the water pump is driven by it. Replace them together — the labour is nearly all shared, and doing the belt alone means paying for the same teardown twice when the pump goes. Our 5VZ Timing Belt Kit covers it.

Everything else that wears:

More under engine rebuild kits.

Swap It — 22R-E to 5VZ

Putting a 3.4 V6 into a truck that came with a 22R-E is one of the most popular swaps in the Toyota world, and for good reason: roughly sixty percent more power in a chassis that was designed around the same drivetrain architecture.

The mounts are the first hurdle. Our 22R-E to 5VZ Conversion Motor Mounts locate the V6 correctly in a Pickup or older 4Runner, and the engine swap header solves the exhaust side.

This is a real project, not a weekend job — wiring, fuel, cooling and driveline all need attention. Call us before you buy parts for it. We would rather spend twenty minutes on the phone than have you discover the gap halfway through.

Related engines: the 3RZ-FE and 2RZ-FE four-cylinders shared these same trucks, and the 3VZ-E is the 3.4's predecessor — a number of parts cross over between them.

See every engine we build for on the Toyota engine platforms page.

Not Sure Where to Start?

Tell us the truck, the year, the mileage and what you want it to do, and we will tell you honestly which of the routes above fits — including when the answer is a rebuild kit rather than our long block. We work on these engines every day and we would rather sell you the right part once than the wrong part twice.

Contact LC Engineering

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