Buy ATK HP89CBLK GM 350 Stage 3 Long Block Crate Engine online.
Transform your vehicle’s performance with the legendary power of a precision-engineered ATK Chevy 350 crate engine. This Stage 3 Long Block is built for enthusiasts who demand reliable, street-ready horsepower and smooth torque delivery right out of the box. Order today from Electrical Marine Solutions and feel the difference on the road.
If you are looking for the perfect balance between daily drivability and track-inspired muscle, ATK HP89CBLK GM 350 Stage 3 Long Block Crate Engine the ATK HP89CBLK GM 350 Stage 3 Long Block Crate Engine is your ultimate solution. ATK HP89CBLK GM 350 Stage 3 Long Block Crate Engine This isn’t just an engine; it’s a high-performance heart transplant for your project car.
Many builders struggle with the unpredictability of rebuilding old blocks. The 350 crate engine ATK removes the guesswork by providing a hand-assembled, dyno-tested foundation that eliminates mechanical failures. This ATK 350 350 HP crate engine is engineered to provide a significant boost in throttle response and mid-range torque, making it ideal for muscle cars, classic trucks, and performance marine applications.
By choosing an ATK build, you benefit from decades of machining expertise. ATK HP89CBLK GM 350 Stage 3 Long Block Crate Engine. Whether you are upgrading from an older 6.0 LS engine or looking for a classic small-block feel with modern reliability, this engine delivers. ATK HP89CBLK GM 350 Stage 3 Long Block Crate Engine. It solves the common problem of “power vs. reliability” by using high-quality internal components designed to withstand higher RPMs while maintaining excellent vacuum for power brakes and accessories.
- Brand: ATK High Performance Engines
- Manufacturer’s Part Number: HP89CBLK
- Part Type: Crate Engines
- Product Line: ATK High Performance GM 350 390 HP Stage 3 Long Block Crate Engines
- Summit Racing Part Number:
- HPE-HP89CBLK
- UPC: 00653517724770
- Crate Engine Family: Chevy Small Block
- Actual Engine Displacement: 5.7L/350
- Crate Engine Cylinder Head Material: Aluminum
- Engine Block Material: Cast iron
- Advertised Compression Ratio: 10.0:1
- Assembled: Yes
- Engine Balance: Internal/External
- Cam Style: Hydraulic roller, OE roller
- Rear Main Seal Style: 1-piece
- Intake Manifold Included: Yes
- Intake Manifold Style: Carbureted
- Cylinder Heads Included: Yes
- Carburetor Included: Yes
- Throttle Body Included: No
- Distributor Included: Yes
- Oil Pan Included: Yes
- Valve Covers Included: Yes
- Timing Cover Included: Yes
- Water Pump Included: Yes
- Harmonic Balancer Included: Yes
- Flexplate Included: No
- Flywheel Included: No
- Air Cleaner Included: Yes
- Spark Plugs Included: Yes
- Spark Plug Wires Included: Yes
- Computer Included: No
- Wiring Harness Included: No
- Water Pump Style: Long
- Supercharger Included: No
- Remanufactured: Yes
- Quantity: Sold individually.
- Notes: Features black valve covers, PCV valve, breather, and air cleaner assembly with washable/reusable filter.
- Special Attention: Rear sump 5 qt. The oil pan is not intended to fit Chevelles with steering behind the crossmember, some Corvettes, and 62-67 Chevy II applications.
ATK High Performance GM 350 390 HP Stage 3 Long Block Crate Engines
Awesome performance and awesome looks collide with ATK High Performance GM 350 390 hp Stage 3 long block crate engines. They are topped with trick-looking parts and have the power to back them up. Each engine is hand-assembled and balanced to help them put out 390 hp and 420 ft.-lbs. of torque that will tear up the street or strip. Whether you are looking to pack some more power in your street rod, muscle car, or truck, ATK has you covered!
ATK GM 350 390 hp Stage 3 long block crate engines include:
- Handpicked, remanufactured block
- ATK High Performance aluminum cylinder heads with 2.020 in. /1.600 ex. valves
- Intake manifold
- Carburetion
- OE crankshaft and connecting rods
- Hypereutectic pistons
- Hydraulic roller camshaft
- Cam lift- .528 int./.536 exh.
- Cam duration at 0.50- 220 int./224 exh.
- 10.0:1 compression
- Distributor, plug wires, and plugs
- Valve covers
- Timing cover and timing set
- Oil pan, pump, and pickup tube
- Water pump
- Front damper and flexplate
Product Specifications
- Displacement: 350 Cubic Inches (5.7L)
- Horsepower: Approx. 350 HP
- Torque: 380-400 lb-ft
- Compression Ratio: 9.1:1 (Pump Gas Friendly)
- Cylinder Heads: Cast Iron Performance
- Crankshaft: Nodular Iron
- Bore x Stroke: 4.000″ x 3.480″
- Weight: Approx. 440 lbs
- Compatibility: Universal GM Small Block mounts
6. Benefits / Why Choose This Product
The ATK HP89CBLK offers a “best-of-both-worlds” scenario. ATK HP89CBLK GM 350 Stage 3 Long Block Crate Engine. Unlike a standard 6.2 engine swap,p which may require extensive wiring and ECU tuning, this 350 small block offers a straightforward installation into classic chassis. ATK HP89CBLK GM 350 Stage 3 Long Block Crate Engine It provides more immediate low-end grunt than many 6.2 LS3 crate engine setups at a fraction of the total build cost. With ATK, you aren’t just buying parts; you are buying a performance legacy known for consistency and rigorous quality control.
FAQs Section
Does this engine come with a warranty?
Yes, ATK provides a limited 24-month unlimited-mile warranty for peace of mind.
What fuel is recommended for the Stage 3 350?
It is designed to run efficiently on 91+ octane pump gas.
Can I use this in a marine application?
Yes, with the proper marine-grade accessories (starter, alternator, etc.), the long block is a popular choice for powerboats.
How fast is shipping?
We typically process orders within 48 hours; however, due to high demand, please contact us for the most accurate freight lead times to your location.
Conversion Elements
- Urgency: High demand for Small Block Chevy builds means current inventory is moving fast. Secure your build today to avoid backorder delays.
- Trust Signal: 100% Quality Guarantee from Electrical Marine Solutions and secure SSL-encrypted checkout.
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