Where to Buy a Mopar Crate Engine (360 Magnum, 5.7 Hemi, 408, 426)

A mopar crate engine for sale here spans four very different builds: a 360 Magnum, a Gen III 5.7 Hemi, a 408 stroker, and a 610 HP Pro Series 426, from two different builders.

This guide covers where to buy a Mopar crate engine across those options, what separates them, and what each builder’s own spec sheet actually confirms.

UniversalEngineParts.com is an independent parts retailer. BluePrint Engines and ATK High Performance are trademarks of their own companies. Chrysler, Dodge, and HEMI are trademarks of their respective owner.

In This Guide

• What’s in stock, by platform
• 360 Magnum vs. 5.7 Hemi vs. 426: which to choose
• Check fit before you order
• Featured in-stock models
• One thing worth confirming before you order
• Warranty and shipping, briefly
• Common mistakes buyers make
• When to get help before you buy
• Tell us about your build
• FAQs

Mopar Crate Engine for Sale: What’s in Stock

A chrysler crate engine or dodge crate engine search on this site turns up four distinct platforms: 360 Magnum, 5.7 Hemi (Gen III), 408 stroker, and the 610 HP Pro Series 426.

You can browse the full crate engines category and filter by price and stock status. For a sitewide view across every brand, not just Mopar, see best crate engines for sale. If you’re pricing out a Hellcat-level build specifically, our what a Hellcat engine costs guide covers that higher tier directly; the engines in this guide sit well below that price and output range.

360 Magnum vs. 5.7 Hemi vs. 426: Which to Choose

A mopar crate motor search often turns up these three platforms mixed together without explaining what actually separates them beyond displacement.

360 Magnum is the classic small-block Mopar platform, carbureted and built on older architecture. It’s the lowest-cost entry point here, aimed at restomod and classic Mopar builds rather than a modern-engine swap.

5.7 Hemi (Gen III) is the modern factory platform found in 2003-and-later trucks and cars, with a materially different architecture, accessory layout, and (on some applications) a multi-displacement system (MDS) feature from the 360 Magnum.

426 Pro Series is the top of the range stocked here: the highest horsepower figure available, built on Hemi-compatible architecture, aimed at builds where the stock-level 5.7 Hemi output genuinely isn’t enough.

If you’re restoring a classic Mopar specifically, 360 Magnum keeps period-correct architecture; if you’re doing a modern Hemi swap, the Gen III platform is the one built for that swap ecosystem.

Check Fit Before You Order

Mopar platforms vary more by generation than most other brands in this category: a 360 Magnum and a Gen III 5.7 Hemi don’t share accessory mounts, oil pan style, or even the same basic block architecture, despite both being “Mopar.”

Run the specific part number through the site’s own Compatibility Check tool before you order, and confirm which generation and MDS configuration (where applicable) matches your application.

Featured In-Stock Models

Three current listings illustrate the 360 Magnum, 5.7 Hemi, and 426 Pro Series options.

ATK Chrysler 360 Magnum 320 HP Stage 1 (HP73)

A Stage 1 carbureted build. ATK’s own official page for this identical part number confirms 320 HP, 410 lb-ft of torque, and 360 cubic inches, matching the listing here.

ATK Chrysler 5.7 Gen III Hemi 400 HP (HP103)

A Gen III Hemi build with MDS. ATK’s primary site didn’t return a locatable page for the plain HP103 (only a related HP103T non-MDS variant), but JEGS, an independent major retailer, lists this exact part number at 400 HP, 400 lb-ft of torque, and 345 cubic inches (5.7L), matching the listing here.

BluePrint Pro Series Mopar 426 610 HP EFI (PS426CTFKB)

The top-output option stocked here. BluePrint’s own knowledge base confirms 610 HP and 525 ft-lbs for the PS426CT series, matching the horsepower here, but doesn’t specifically document the exact “CTFKB” part number sold, and doesn’t confirm fuel delivery type for the series at all. See the note below before relying on the “EFI” and “deluxe dressed” claims specifically.

Current pricing, exact included accessories and stock status are shown on each product page rather than reproduced here, since all three change over time.

One Thing Worth Confirming Before You Order

Checking the 426 Pro Series against BluePrint’s own knowledge base confirmed the 610 HP figure, but turned up a gap worth flagging rather than quietly repeating.

UEP’s listing names this engine “610 HP EFI” and “Deluxe Dressed.” BluePrint’s own knowledge-base page for the PS426CT series lists “Fuel Delivery Type: N/A” and “Intake Manifold: N/A,” and doesn’t use the term “deluxe dressed” anywhere. It also doesn’t document a part number ending in “CTFKB” specifically, only the base PS426CT series generally.

This isn’t a conflict on horsepower; 610 HP is consistent everywhere it’s listed. But the EFI and deluxe-dressed claims on this specific part number aren’t independently confirmable from BluePrint’s own published pages in this session, so they should be confirmed directly with BluePrint or UEP support before a buyer relies on either claim, especially since EFI versus carbureted is a meaningful functional difference, not a cosmetic one.

Warranty and Shipping, Briefly

Warranty terms differ by builder. Our warranty information page lists Ford Performance and Mopar HEMI coverage at 24 months, parts only, separate from BluePrint’s and Chevrolet Performance’s terms; the crate engine hub guide covers the brand-by-brand picture in full, including a known disagreement between UEP’s stated BluePrint term and BluePrint’s own published term. ATK’s specific coverage isn’t broken out in that same comparison yet, so confirm it directly with support before you order an ATK-built Mopar engine.

Crate engines ship as palletized freight, with published US and Canada delivery windows of 7 to 14 business days, quoted at checkout based on weight and destination. Full steps are on the shipping information page.

Common Mistakes Buyers Make

• Assuming all Mopar crate engines share compatible accessory mounts and oil pan styles across generations.
• Treating “EFI” or “dressed” labels as confirmed when a part number isn’t specifically documented on the builder’s own page.
• Skipping the MDS confirmation on a Gen III Hemi application that specifically needs (or needs to avoid) that feature.
• Budgeting a 426 Pro Series build without confirming fuel delivery type directly, given the gap flagged above.
• Not confirming warranty terms before assuming ATK coverage matches BluePrint’s or Chevrolet Performance’s.

When to Get Help Before You Buy

If you’re deciding between 360 Magnum, 5.7 Hemi, and 426 Pro Series, or need the EFI and dress-level details confirmed on the 426 specifically, it’s worth asking first.

Use the Compatibility Check page for a fast fit check, or Contact Us with a specific question.

Tell Us About Your Build

Builders know things no spec sheet does. Answer any of these in the comments to help other readers of this guide.

• Which platform did you end up buying, and why?
• If you bought the 426 Pro Series, was it carbureted or EFI as delivered?
• Did the horsepower or torque you measured match the published figure?
• What’s the one thing you wish you’d confirmed before ordering?

Share what you can, and we’ll join in with general guidance. Please don’t post personal contact details or payment information.

Before You Go

Not sure whether 360 Magnum, 5.7 Hemi, or 426 Pro Series fits your build? Send us your vehicle and intended use, and we’ll help you compare the real total cost, not just the horsepower number.

• Browse the full crate engines category by price and stock status
• Run a Compatibility Check before you order
• Contact our team with any fitment or warranty questions

The more detail you send, the faster we can help you choose.

UniversalEngineParts.com is independent and is not affiliated with, endorsed by or sponsored by BluePrint Engines, ATK High Performance, Chrysler, Dodge, Stellantis, or any other manufacturer named in this guide. Each brand name is a trademark of its respective owner, used here only to identify the engines we sell. Specifications cited from manufacturers’ and retailers’ own pages reflect that part number at the time of writing and may not match every variant; always confirm against the current product page before ordering.

Mopar Crate Engine: FAQs

Where can I buy a Mopar crate engine for sale online?

Universal Engine Parts lists a mopar crate engine for sale across 360 Magnum, 5.7 Hemi (Gen III), 408 stroker, and 426 Pro Series platforms from ATK High Performance and BluePrint Engines, so you can compare before you check fit and order.

What’s the difference between a 360 Magnum and a 5.7 Hemi crate engine?

A 360 Magnum is the classic carbureted small-block Mopar platform built on older architecture, while the 5.7 Hemi (Gen III) is the modern factory platform found in 2003-and-later trucks and cars, with a different accessory layout and, on some applications, a multi-displacement system (MDS).

Is the 610 HP Pro Series 426 really EFI?

UEP’s listing names it “610 HP EFI,” and the horsepower figure matches BluePrint’s own knowledge base for the series. But that same knowledge-base page lists fuel delivery type as not stated for the series generally, and doesn’t document the exact part number sold. Confirm the fuel delivery configuration directly with BluePrint or UEP support before relying on the EFI claim.

What’s a mopar crate engine with warranty I can trust?

Warranty terms vary by builder: UEP’s warranty information page lists Mopar HEMI coverage (alongside Ford Performance) at 24 months parts only, separate from BluePrint’s and Chevrolet Performance’s own terms. Confirm which builder’s terms apply to the specific engine you’re buying.

How much does a Hemi crate engine cost?

Hemi crate engine price varies significantly by generation (Gen III 5.7 vs. the 426 Pro Series) and builder; check each live product page rather than assuming price scales neatly with horsepower, and see our dedicated Hellcat cost guide if you’re pricing a higher-output build.

Do I need MDS on my 5.7 Hemi crate engine?

It depends on your vehicle’s original configuration and your preference for fuel-saving cylinder deactivation versus simplicity. Confirm with the Compatibility Check tool or our support team which configuration matches your specific application.

Can you help me compare 360 Magnum, 5.7 Hemi, and 426 Pro Series for my build?

Yes. Send us your vehicle and intended use through a Compatibility Check or Contact Us, and we’ll help you compare the real total cost of each option, not just the horsepower number.