ATK High Performance Chrysler 408 Mag Stroker Short Blocks SP57

$2,765.00

Engine Assembly, Short Block, Stroker, 1-Piece Main Seal, Mopar, Small Block Magnum, 408, Each

Overview

Name: ATK High Performance Chrysler 408 Mag Stroker Short Blocks SP57 - X Factors Motorsports
Price: 2765.00 USD
Availability: InStock

Brand: ATK High Performance Engines

Manufacturer’s Part Number: SP57

Part Type: Short Block Engines

Product Line: ATK High Performance Chrysler 408 Mag Stroker Short Blocks

Summit Racing Part Number: HPE-SP57

UPC: 653517170720

Crate Engine Family: Mopar Small Block Magnum

Actual Engine Displacement: 6.7L/408

Rear Main Seal Style: 1-piece

Crankshaft Material: Forged 4340 steel

Piston Material: Forged aluminum

Short Block Piston Style: Dish

Connecting Rod Material: Forged 4340 steel

Connecting Rod Beam Style: I-beam

Engine Block Material: Cast iron

Main Journal Type: Mopar LA Large

Deck Height (in.): 9.600 in.

Engine Balance: Internal

Oil Pan Included: No

Timing Cover Included: No

Harmonic Balancer Included: No

Flexplate Included: No

Flywheel Included: No

Assembled: Yes

Remanufactured: Yes

Quantity: Sold individually.

ATK High Performance Chrysler 408 Mag Stroker Short Blocks

Start your build with a rock-solid bottom-end with these ATK High Performance Chrysler 408 Mag Stroker short blocks. These short blocks are built using high-quality components that are all hand-fit and balanced to create a reliable bottom-end that’s ready to get your musclecar or truck moving. Just top the engine off with your own parts to build a custom engine that is designed to meet your goals.

These ATK High Performance Chrysler 408 Mag Stroker short blocks include the following:

* Handpicked and seasoned OE Magnum 1993-2001 blocks
* Aligned and hone main bores
* 4340 Forged steel internally balanced crankshaft
* 4.00 in. stroke
* 4340 forged I beam connecting rods with ARP 8740 bolts
* Forged pistons with 20.5cc dish
* Approximate Compression Ratios: 62cc = 9.9:1 / 68cc = 9.5:1 / 72cc = 9.1:1

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 Chrysler 408 Mag Stroker Short Blocks SP57

Overview

1. Processing Time

2. Delivery Times

3. Shipping Rates

4. Carriers Used

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ATK High Performance Chrysler 408 Mag Stroker Short Blocks SP57

Overview

1. Processing Time

2. Delivery Times

3. Shipping Rates

4. Carriers Used

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