Name: ATK High Performance GM 350 345 HP Stage 1 Long Block Crate Engines HP98 - X Factors Motorsports
Price: 1982.00 USD
Availability: InStock

ATK High Performance GM 350 345 HP Stage 1 Long Block Crate Engines HP98

$1,982.00

Crate Engine, Base Long Block, Cast Iron Heads, Hydraulic Roller Camshaft, Chevy, 350, Each

Overview

Brand: ATK High Performance Engines

Manufacturer’s Part Number: HP98

Part Type: Crate Engines

Product Line: ATK High Performance GM 350 345 HP Stage 1 Long Block Crate Engines

Summit Racing Part Number: HPE-HP98

UPC: 653517137235

Crate Engine Family: Chevy Small Block

Actual Engine Displacement: 5.7L/350

Crate Engine Cylinder Head Material: Cast iron

Engine Block Material: Cast iron

Advertised Compression Ratio: 9.1:1

Assembled: Yes

Engine Balance: Internal/External

Cam Style: Hydraulic roller, OE roller

Rear Main Seal Style: 1-piece

Intake Manifold Included: No

Cylinder Heads Included: Yes

Carburetor Included: No

Throttle Body Included: No

Distributor Included: No

Oil Pan Included: Yes

Valve Covers Included: Yes

Timing Cover Included: Yes

Water Pump Included: No

Harmonic Balancer Included: No

Flexplate Included: No

Flywheel Included: No

Air Cleaner Included: No

Spark Plugs Included: No

Spark Plug Wires Included: No

Computer Included: No

Wiring Harness Included: No

Supercharger Included: No

Remanufactured: Yes

Quantity: Sold individually.

ATK High Performance GM 350 345 HP Stage 1 Long Block Crate Engines

ATK High Performance GM 350 345 hp/400 lbs.-ft. Stage 1 long block crate engines are classics with great street manners, and vacuum to power all your accessories. These Stage 1 or base engines are designed for those that may have their own component parts already, and who also are interested in completing out the build themselves.

Typically ATK GM 350 345 hp base long block engines consist of:

* Seasoned OE short block with 4-bolt mains
* OE cast crankshaft
* OE 5.7 in. powder metal connecting rods
* Hypereutectic pistons
* Moly piston rings
* Hydraulic roller camshaft
* 220/224 at .050 in.
* .495 in./502 in. lift 110 LSA
* ATK cast iron cylinder heads
* 76cc combustion chambers
* 165cc intake runners
* 1.94 in./1.5 in. valves
* Stamped steel 1.5 ratio rocker arms
* Valve covers
* Timing set and cover
* Oil pan, high volume oil pump with pick-up tube

Effective Date: August 9, 2025

At X Factors Motorsports, we are committed to delivering your order quickly, securely, and affordably.

1. Processing Time

Orders are typically processed within 1–2 business days after payment is confirmed.
Orders placed on weekends or holidays will be processed on the next business day.

2. Delivery Times

Domestic Shipping (United States): Delivery takes 5–7 business days from the date of shipment.
International Shipping: Delivery times vary by destination and may take 7–21 business days depending on customs processing and local delivery services.

3. Shipping Rates

United States: Free standard shipping on all orders.
International: Shipping costs are calculated at checkout based on the delivery address, package weight, and destination country.

4. Carriers Used

We ship orders using trusted carriers such as UPS, FedEx, USPS, and DHL to ensure reliable delivery. Tracking numbers are provided for all shipments.

ATK High Performance GM 350 345 HP Stage 1 Long Block Crate Engines HP98

1. Processing Time

2. Delivery Times

3. Shipping Rates

4. Carriers Used

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ATK High Performance GM 350 345 HP Stage 1 Long Block Crate Engines HP98

1. Processing Time

2. Delivery Times

3. Shipping Rates

4. Carriers Used

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