ATK ENGINES HP31 Tbi Base Engine 87-95 290HP

( Brand: Atk Engines ), ( Manufacturer Part Number: HP31 ), ( Engine Size: 5.7 Liters ), ( Type: Crate Engines ), ( California Prop 65 Warning: True )

Review ATK ENGINES Fits Chevy 87-95 Tbi Base Engine 290hp fits 350

The ATK Engines HP31 Chevy 350 87-95 TBI Base Engine is a powerful and efficient replacement option for your late-model Chevrolet vehicle. This engine, which produces a base horsepower of 290, is an excellent choice for those seeking to enhance the performance of their automobile.

The HP31 engine is a 350 cubic inch V8 unit, which means it has eight cylinders arranged in a V-shape with a total displacement of 350 cubic inches. It is designed to fit Chevrolet models from 1987 to 1995 that came equipped with the TBI (Throttle Body Injection) system.

This engine features a compact combustion chamber design that improves fuel economy and reduces emissions. It is equipped with a TBI system, which uses a single throttle body to control both the fuel flow and the air intake. This system ensures a more efficient fuel mixture and a smoother engine operation.

The HP31 engine also includes a forged crankshaft and forged pistons, which provide increased durability and reliability. It is also equipped with a roller camshaft, which helps to reduce friction and improve engine performance. The cylinder heads are CNC ported and feature 1.94 and 1.60-inch intake and exhaust valves, respectively.

The engine comes with new OEM-style gaskets, a new timing cover, and a new water pump. It also includes a new front and rear timing set, a new oil pump, and a new harmonic balancer. These new components help to ensure a trouble-free installation and operation of the engine.

The HP31 engine is also compatible with most factory accessories and wiring harnesses, making it a convenient and hassle-free upgrade option. It is backed by a 12-month, 12,000-mile warranty, which covers any manufacturing defects.

In summary, the ATK Engines HP31 Chevy 350 87-95 TBI Base Engine is a high-performance, reliable, and efficient replacement option for your late-model Chevrolet vehicle. It is a great choice for those seeking to improve the power and fuel economy of their automobile, while ensuring a trouble-free installation and operation.

The ATK Engines HP31 Chevy 350 TBI base engine is a popular choice for those looking to upgrade the power output of their 1987-1995 Chevy trucks. This engine comes with a factory-installed throttle body injection system and delivers a horsepower output of 290. Here are some pros and cons that might help you make an informed decision about purchasing this engine:

1. Increased Power: The most significant advantage of this engine is the increased power it delivers. With 290 horsepower, it provides a noticeable improvement over the stock engine.

2. Better Fuel Economy: The TBI system in this engine delivers better fuel economy than its carbureted counterparts. This is due to the fact that the fuel is injected directly into the intake manifold, allowing for a more precise fuel-air mixture.

3. Improved Emissions: The TBI system also helps in reducing emissions, making it a more eco-friendly option.

4. Durability: The HP31 engine is known for its durability and reliability. It is built to withstand the rigors of heavy-duty use, making it a popular choice for truck owners.

5. Easy Installation: The engine is relatively easy to install, especially if you're replacing a similar engine in the same vehicle.

1. Cost: The HP31 engine is more expensive than the stock engine. The cost of purchasing and installing the engine can be a significant investment.

2. Complexity: The TBI system in the engine can be complex to diagnose and repair. It may require specialized knowledge and tools, which can add to the cost of ownership.

3. Maintenance: The TBI system requires regular maintenance, such as fuel pressure tests and injector replacement. Failure to maintain the system can lead to performance issues and potential damage to the engine.

4. Compatibility: While the HP31 engine is compatible with most 1987-1995 Chevy trucks, there may be some vehicles that require additional modifications to make the engine fit properly.

The ATK Engines HP31 Chevy 350 TBI base engine is a powerful and reliable option for those looking to upgrade the power output of their 1987-1995 Chevy trucks. While it comes with some disadvantages, such as cost and complexity, the benefits, including increased power, better fuel economy, improved emissions, durability, and easy installation, make it a worthwhile investment for many truck owners.

If you're looking to upgrade the power output of your 1987-1995 Chevy truck and are willing to invest in a more powerful and reliable engine, the ATK Engines HP31 Chevy 350 TBI base engine is a great option to consider. However, it's important to weigh the pros and cons carefully and ensure that the engine is compatible with your specific vehicle before making a purchase. Additionally, make sure to factor in the cost of installation and ongoing maintenance when considering the total cost of ownership.

Details:

Oil Filter: Wiz or K and N. Displacement: 350CI. Camshaft: HUD. ECM needs a chip burned to run properly.

Block: OE block 4 bolt main 1pc seal 1987 -1995. Stall Converter: Stock. Timing Chain: Double roller. Bore/Stroke: 4.040 x 3.480.

Oil Pump: Mewling STD volume. Engine Specifications: HP: 290. Timing: Set To Factory Specifications Via PCM Module Must have Performance Chip Burned. Water Pump: OE.

Spark Plug Wires: Factory replacements. Crankshaft: OE Reground external balance rear of crank/internal front the crank

part #: hp31 price

• $3294.99

specifications grokengines:

• for models: 350
• for makes: Chevy
• brand: Atk Engines
• mpn: Hp31
• engine size: 5.7 Liters
• type: Crate Engines
• california prop 65 warning: True

payments grokEngines:

• wallet: Paypal
• other
• credit card: Mastercard

general grokEngines:

• Car Truck Parts Accessories > Engines Engine Parts > Engines
• condition: New

offer grokEngines:

• quantity: 1
• availability: In Stock
• started: June 14, 2025
• options: Ship-to-home
• sold: 0

shipping grokEngines:

• service: Flat Rate Freight
• transit: 12-17 Days
• type: Fixed
• cost: $275.00
• class: Freight

seller grokEngines:

• city: Lincoln, Nebraska
• rating: 99.2%
• # reviews: 323611

returns grokEngines:

• time: 60 Days
• policy: Returns Accepted
• paid by: Buyer

Atk Engines HP31 Is Similar To:

• Atk North America Dct8 Remanufactured Engine 5.3l Gm 300-05953a (27.9% similar) This test also allows the rear main seal to be checked for leaks. Engines are factory checked after assembly to ensure proper operation. All components are inspected to assure viability, then verified by quality control personnel. This has never been installed. This engine is...(August 9th, 2024)
• Atk North America Ddha2 Remanufactured Engine 3.6l Dodge 300-08007f (27% similar) Atk remanufactured crate Engines warranty. Remanufactured crate Engines are built to OE horsepower and torque specifications. Sim tested for compression, leaks, noises oil pressure. Of air pressure. We produce most Engines as long block assemblies that ship with a finishing gasket set...(August 9th, 2024)
• Atk North America Hp98c 2020 Bmw M5 Comp Engine S63tu (37.5% similar) The motor failed due to rod bearings everything else is good on...(October 17th, 2024)
• Atk North America Dfn1 Ford 302 1994-1996 Remanufactured Engine (16.4% similar) Block casting:: E7TE F1SE, head E5TE, E7TE, crank 2MAE, E1AE, E7AE, casting location:: V8, right rear of block, near oil pan surface. Help info:stamped behind distributor gear. Block # F1SE. Head # E7TE with knock sensor in block. Has letters te, help info:: 94-96. Truck van only...(October 18th, 2024)
• Atk Engines Hp78c Engine Fits Ford 302 Complete 375hp Front Sump Pan (40.9% similar) Camshaft duration .050 in 220 intake / 224 exhaust recommended fuel 91 octane pump gas imbalance 50 mfg. Headquarters. Part # HP78C condition new brand Atk Engines sold each details info engine specifications: hp: 375, qt: 380, block: seasoned OE roller block 1987 -1995, bore/stroke: 4.040 x...(December 13th, 2024)
• Atk Engines Hp93 Chev 6.0 Perf 01-07 (55.7% similar) Part details: manufacturer, brand, mpn, OE/oem part number, UPC, condition, country/region of manufacture, height , length , width , weight, package quantity, warranty, manufacturer warranty. Atk Engines HP93 - chev 6.0 pref 01-07. Refer to for more details...(January 5th, 2025)
• Speedway Motors 91607036 Atk Ls Conversion Crate Engine Efi Kit Lh6 5.3l 475hp Fits Chevy (31.1% similar) Designed around the ls muscle car oil pan, these kits include most necessary parts for installation, including dipstick and tube, bolts, gaskets, pickup vintage tray. The user-friendly setup wizard allows you to answer a few simple questions about your engine and the system will begin self...(January 6th, 2025)
• Atk Engines Hp291pm Chev 350 4 Bolt 1pc 325hp (60.4% similar) Free within the continental us. Most performance Engines come in 3 different dress levels and range from 245HP-700HP carrying a 2 year warranty built by name you can trust. Atk Engines HP291PM - chev 350 4 BOLT/1PC 325HP...(January 19th, 2025)
• Atk Engines Vda8 Chry 3.7 226 02-03 Engine (54.4% similar) Engine size cc. Atk chary 3.7/226 02-03 engine VDA8 menu.: Atk chary 3.7/226 02-03 engine VDA8. Atk Engines VDA8 - chary 3.7/226 02-03 engine...(January 21st, 2025)
• Atk Engines Hp32m Fits Chevy 350 Vortec Mid Dress Engine 350hp (71.1% similar) Water pump: OE long pump. Part # HP32M condition new brand Atk Engines sold each details info engine specifications: hp: 350. Crankshaft: OE reground external balance rear of crank/internal front the crank. Oil: conventional / non synthetic 10W30, oil filter: wiz or k n, timing: set to factory...(February 12th, 2025)
• Atk Engines Hp32c Fits Chevy 350 Vortec Complete Engine 350hp (73.3% similar) Distributor: hie iron gear. Crankshaft: OE reground external balance rear of crank/internal front the crank. Block: OE roller block 4 bolt main 1PC seal 1996 -2000. Displacement: 350CI. Oil pump: mewling std volume. Part # HP32C condition new brand Atk Engines sold each details info...(February 19th, 2025)