- Engines & Components
- Engine - Assembled / Ready-to-Run
- Chevrolet Performance ZZ6 Base 350ci/405HP Crate Engine
The Next Chapter in the ZZ Small-Block Legacy!
Chevrolet Performance's ZZ6 delivers more power than any 350 Small-Block ever installed in a production vehicle. Rated at 405 horsepower and 406 lb.-ft. of torque, it derives its range-topping performance from unique, lightweight aluminum cylinder heads that enable optimal airflow at high rpm.
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The cylinder head casting is based on the proven Fast Burn design, with large intake runners and 2.00/1.55-inch valves. Beehive-style valve springs deliver greater high-rpm performance and durability. Their egg-shaped profiles have less reciprocating mass in motion, require less spring pressure for greater valve control and handle valvetrain stresses more efficiently. They allow the ZZ6 to rev higher to make the most of every cubic inch of air drawn through it.
The ZZ6 also uses an aggressive hydraulic roller camshaft that supports the engine's high-rpm airflow capability while maintaining excellent low-speed drivability. This 'Base' crate engine kit includes the intake manifold, distributor, water pump, harmonic damper and flexplate - and the distinctive, racing-inspired valve covers that distinguish this crate engine as the latest in the ZZ legacy!
ZZ6 BASE TECH SPECS:
- Engine Type: Chevy Small-Block V-8
- Displacement: 350ci
- Bore x Stroke: 4.000'' x 3.480''
- Block: Cast-iron with four-bolt main caps
- Crankshaft: Forged steel, 1-piece rear main seal
- Connecting Rods: Forged powder metal
- Pistons: Hypereutectic aluminum
- Camshaft Type: Hydraulic roller (steel)
- Camshaft Lift: .474'' intake / .510'' exhaust
- Camshaft Duration (@.050 in.): 208° intake / 221° exhaust
- Cylinder Heads: 'Fast Burn' aluminum, 62cc combustion chambers
- Valve Size: 2.000'' intake / 1.550'' exhaust
- Compression Ratio: 9.72:1
- Rocker Arms: Aluminum roller style
- Rocker Arm Ratio: 1.5:1
- Distributor: HEI type
- Intake Manifold: Single plane aluminum
- Water Pump: Cast-iron, long-style
- Flexplate: 12.75'' diameter, 153-tooth
- Recommended Fuel: Premium pump
- Ignition Timing: 36° Total @ 4000 rpm
- Maximum Recommended RPM: 5800
- Balanced: External
JEGS Easy Kits are designed by JEGS high performance racing professionals to help you get all the performance parts you need for your race car, hot rod or truck.
Chevrolet Performance ZZ6 Base 350ci Connect & Cruise Powertrain System
Which Chevrolet Performance ZZ6 Base 350ci/405HP Crate Engines Are Best?
No matter which ZZ6 Base 350ci/405HP Crate Engine you choose, you're sure to notice an improvement in performance. If you're looking for the most bang for your buck, the Chevrolet Performance ZZ6 Base 350ci Engine is a good starting point.
How Much Does a Chevrolet Performance ZZ6 Base 350ci/405HP Crate Engine Cost?
The starting point of a ZZ6 engine is just under $6,500, while the Chevrolet Performance ZZ6 Base 350ci Engine Kit with all the bells and whistles will cost closer to $10,000.
No matter which ZZ6 engine you choose, JEGS has you covered with the best selection and prices in the industry. Shop now and get the power you've always dreamed of.
If your current engine isn't cutting it anymore, a new Chevrolet Performance ZZ6 Crate Engine could be just what you need. This engine offers significantly more power and is much lighter than a stock one, giving your car or truck a noticeable boost in performance.
With 405 horsepower on tap, the ZZ6 is bound to get your heart racing. It's also a great choice for anyone looking to build a street rod or race car, as it offers plenty of power and widely available aftermarket parts.
JEGS is proud to help build the car of your dreams, and it all starts with a powerful motor like the ZZ6 crate engine.
What Are Chevrolet Performance ZZ6 Base 350ci/405HP Crate Engine Common Pros and Cons?
As the most powerful 350 small block ever installed in a production vehicle, the ZZ6 has a lot to offer. Lightweight aluminum heads enable optimal airflow at any RPM, while beehive-style valve springs offer exceptional high-end power delivery. Couple that with a forged steel crankshaft and you've got a recipe for serious performance.
However, there are a few considerations. First and foremost, the ZZ6 does come at a price. It's not the most budget-friendly engine on the market by any means. Second, it's not exactly a plug-and-play installation. Some modification to your vehicle will be necessary to get this puppy up and running. But the trade-off is well worth it for the discerning driver.