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When your project car is coming together and the time comes to choose a powerplant, the decision can feel bigger than any other part of the build. Whether you are restoring a classic muscle car, upgrading a street truck, or building a weekend cruiser, the crate engine you choose will define how the vehicle drives, sounds, and performs.
If you are comparing ATK vs Blueprint Engines, you are already looking at two of the most recognized names in the crate engine market. Both brands offer small block and big block combinations, long blocks, and fully dressed crate engines. The question is which one fits your goals, budget, and expectations.
Here is a clear breakdown to help you decide.
ATK High Performance Engines Overview
ATK High Performance Engines has roots dating back to 1936. Over the decades, the company built a reputation in remanufacturing and later expanded into high performance crate engines. Today, ATK offers a range of crate engines designed for street performance, classic restorations, and select racing applications.
ATK crate engines are commonly available for GM, Ford, and Chrysler platforms. Popular combinations include small block Chevy 350 engines, big block options, and various street-friendly horsepower levels.
One of the defining traits of ATK engines is their reverse engineering process. Rather than simply duplicating factory designs, ATK analyzes original equipment engines to identify weaknesses and improve durability where possible. Their performance engines are backed by a 24 month unlimited mileage warranty, while short blocks carry different coverage terms depending on application.
Blueprint Engines Overview
Blueprint Engines was founded in 1982 and has focused heavily on performance oriented crate engines. The brand is known for attention to detail, dyno testing, and delivering engines that meet or exceed advertised horsepower ratings.
Blueprint offers a wide catalog of crate engines for GM, Ford, and Chrysler applications. You can find small block Chevy 350 crate engines, stroker combinations such as 383 builds, LS based engines, and larger displacement big block packages.
Blueprint complete crate engines are backed by a 30 month or 50,000 mile warranty, while short blocks and race engines have different coverage terms. Many Blueprint engines are dyno tested and shipped with documentation of horsepower and torque numbers.
Most Popular Blueprint Performance Engines
Comparing ATK vs Blueprint Crate Engines
Both ATK and Blueprint offer long blocks and fully dressed crate engines. Many engine families overlap, including popular small block Chevy combinations. You can typically choose between carbureted and fuel injected setups depending on your vehicle and performance goals.
Where they differ is in focus and positioning.
ATK engines are often selected by builders looking for strong street performance and solid value. They are a common choice for classic restorations and drivers who want dependable horsepower without pushing into extreme builds.
Blueprint engines are frequently chosen by enthusiasts who want higher advertised horsepower numbers and dyno tested performance. Their catalog includes many aggressive combinations that appeal to street performance and weekend track builds.
Quality And Reliability
ATK has built its name on durability and consistency. Their reverse engineering process is intended to address known factory shortcomings, which can improve long term reliability in street applications.
Blueprint emphasizes precision assembly and dyno verification. Customers who prioritize documented horsepower numbers often lean toward Blueprint because of the dyno sheets provided with many complete engines.
Both brands use quality internal components suited to the intended power level. As with any crate engine, correct installation, break in procedures, and properly matched supporting components such as fuel systems, cooling systems, and transmissions are critical to long term reliability.
Cost And Overall Value
Price is often a deciding factor when choosing between ATK and Blueprint Engines.
ATK crate engines generally fall into a slightly more budget friendly range for comparable displacement and configuration. For many street builds, this makes ATK an attractive option when balancing performance and cost.
Blueprint engines typically carry a higher price point, especially for larger displacement or higher horsepower combinations. However, the added cost may reflect dyno testing, upgraded internal components, and extended warranty coverage on complete engines.
Which one offers better value depends on your specific build. If your goal is a dependable street engine with strong performance at a competitive price, ATK may fit the bill. If you are targeting maximum advertised horsepower and documented dyno results, Blueprint may justify the additional investment.
Warranty Considerations
Warranty coverage is an important part of the decision.
ATK performance engines are backed by a 24 month unlimited mileage warranty. High performance short blocks carry shorter coverage periods.
Blueprint complete engines are backed by a 30 month or 50,000 mile warranty. Short blocks and race engines have separate terms, and race only engines typically do not carry warranty coverage.
Reviewing warranty details before purchasing is essential, especially if the vehicle will see aggressive use.
How To Choose The Right Crate Engine For Your Project
Before selecting an ATK or Blueprint crate engine, consider the following:
Vehicle application and intended use
Transmission compatibility
Rear axle ratio
Fuel system and ignition setup
Cooling system capacity
Budget and long term goals
A mild street cruiser and a high compression track car require very different engine combinations. Matching the engine to the overall vehicle package is more important than choosing a brand based on name alone.
Find ATK And Blueprint Crate Engines At JEGS
At JEGS, you can shop a wide selection of ATK crate engines and Blueprint Engines to match your build. Whether you are looking for a small block Chevy 350 crate engine, a stroker combination, or a complete turn key package, we carry options from both trusted brands.
If you are unsure which engine is best for your project, call 1-800-345-4545 to speak with a JEGS Tech Specialist. Our team can help you compare ATK vs Blueprint Engines, confirm fitment, and choose the right crate engine and supporting components to get your build on the road with confidence.
8 responses to “ATK vs Blueprint Engines: How To Decide Which Crate Engine Is Right For Your Build”
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Hello I am looking to get a complete drive train replacement for my 1970 Chevelle. I am interested in either the ATK or blueprint 390 HP option as well as a TH350 transmission behind it (flexplate and torque converter as well). I am looking to do this build as cost effective as possible without giving up quality. The Chevelle has 2.73 gears in the back (maybe an upgrade someday to 3.55’s). I have a new 3 core radiator and twin electric fans for it already. Just looking for a nice cruiser with some get up and go once in a while from street light to street light. Looking for a recommendation. Thanks
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Chris, for what you are describing a 390 horsepower small block with a TH350 is a great fit for a street driven Chevelle, and both ATK and Blueprint Engines offer solid options in that range. The biggest difference usually comes down to how the engines are assembled and tested. Blueprint Engines is known for dyno testing their engines and providing detailed results, which gives you a clear picture of what you are getting out of the crate. ATK engines are also reliable and tend to be a strong value option, especially if you are trying to stay cost effective while still getting a complete package. With your current 2.73 gears, the car will be more of a relaxed cruiser, so you will want to keep the combination focused on low to mid range torque rather than high rpm power. Both of those 390 horsepower engines are typically built with that in mind, so they will work well with your current setup and feel even better if you move to 3.55 gears later on. Pairing it with a TH350 is a good choice for simplicity and durability, and you will want a mild to moderate stall converter that complements the engine without making it feel loose in normal driving. Since you already have a good cooling system in place, you are on the right track for a reliable street setup. If your goal is the best balance of cost and knowing exactly what the engine will deliver, many people lean toward Blueprint for that dyno tested confidence, while ATK can be a strong choice if you are looking to save a bit and still get a dependable package. Either way, you are in a good range for a fun street cruiser with enough power to enjoy when you get into it. If you would like to go over the full drivetrain setup and make sure everything is matched correctly, give us a call at 1-800-345-4545 and speak with a Tech Specialist and we will be glad to help.
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Looking to put a bit more power into a 1989 F-150 Super Cab/Short Bed (purchased new 351W /5.8L paired with a 3 speed C6 (no overdrive). Still runs very strong with 365,000 miles on original components still producing 135 psi +/- in each cylinder and torque converter continues to shift tight & hard with little to no play in the driveline.
Will continue to be a reliable driver for years to come, however,, this is a upgrade necessary to make a difference.
Hoping to tap out at around 400 HP +/- a little bit, keep it within a reliable street rod capacity and regular driver.
The question is Blueprint, ATK or another reliable competitive manufacturer in he 7K-12K range fully dressed with EFI upgrade.
Asking for myself, no friends have a truck this cool! 🙂 LOL-
Mr. Burton, first off, 365,000 miles on the original 351W and C6 is seriously impressive. That says a lot about how that truck has been cared for. If you are looking to move into the 400 horsepower range and still keep it reliable as a regular driver, you are in a very realistic window for a properly built 351W based crate engine. Both Blueprint Engines and ATK offer solid small block Ford options in that power range, and both brands have good reputations for street driven combinations. Blueprint Engines is well known for their dyno tested long blocks and fully dressed packages, and many of their 351W builds are set up with aluminum heads and hydraulic roller cams that are very street friendly. ATK also offers 351W based performance engines that are designed to balance drivability and power, and they tend to stick close to proven combinations with good torque curves, which works well in a heavier truck like your F 150. With a C6 and no overdrive, torque down low and midrange power are more important than chasing peak horsepower numbers. For your goal of around 400 horsepower, I would stay with a hydraulic roller cam, aluminum heads in the 170 to 190 cc intake runner range, and an EFI system that is calibrated for street use. A throttle body EFI system from brands like FiTech or Holley can work well on a Windsor and will give you modern drivability without getting overly complicated. The key is matching the cam profile to the C6 and your rear gear so it does not feel lazy off the line. In your budget range of 7K to 12K for a fully dressed setup with EFI, you are in the right ballpark. The biggest decision comes down to whether you want a long block and choose your own induction and accessories, or a turnkey style package that is ready to drop in. Since your truck is already proven reliable, it may also be worth confirming your rear gear ratio and overall condition of the cooling and fuel systems so everything supports the added power. If you would like to go over the specific Blueprint Engines and ATK options available and make sure it matches your C6 and intended use, give us a call at 1-800-345-4545 and speak with a JEGS Tech Specialist. They can walk through the details and help you choose the right combination for your cool truck.
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I purchased a motor that is claimed to be an ATK and there is a little metal plate with the number 4080274144 stamped on it, I was wondering if that could be found in your records
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Scott, Please give us a call at 1-800-345-4545 and a tech specialist can walk through it with you. They also will contact ATK to confirm that stamped number.
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I am going to rebuild my 2011 5.3 chevy LC9 engine out of my silverado z71 4wd 1500 crew cab gear ratio rear 3:73, 245/18 tires ,stock wheels, stock transmission automatic, I have already self deleted dod/afm by plugging the oil hole in the rear of my engine galley plate and removed the dod/afm solenoids . Have also plugged the dod/afm lifter oil passage holes in the engine block lands center galley area 8ea. Just under the center plate.with my rebuild on a tight budget do it myself build, I need a set of good roller lifters and a peformance cam to match that will increase my low to mid range power can you point me in the right direction for proper fitment and give me the best power cam daily driver keep in mind with good sound little choppy at idle and peformance above other factory 5.3 silverados. Can you help? Also any other suggestions you could give me on this build with parts selection and up grades would be much appreciated. I am going to re-ring my stock pistons no boaring stock boar. Going with engine crankshaft stock dia. rod & main bearings. Can jegs help me with this selection of engine bearings and or rotating assy crank. I want to use a selling hv hp oil pump need help with this also and need good selection of engine stock piston and boar rings with complete gasket set. I read also about some sort of oil pressure relief valve I know nothing about in or part of the oil pan what to do with this I don’t know? Change spring? Plug the hole? Or what? I don’t want any low oil pressure issues in the future due to this pressure relief valve in the oil pan or what ever it is I have read about. Please provide me with parts, kits of any sort and advise on what I need with your professional advice from your engineering department. I am 62 years old grew up in a chevy dealership shop my dad owned back in 70’s, worked as mechanic all my life but most of it was after completing a associate of science degree in aviation maintenance & engineering technology. So I have basic mechanical background just FYI. I hope you understand all my questions here and understand fully what king of budget engine build I am trying to accomplish if you can put me up on a short block with dod/ afm delete I may consider this. Sure hope you can help. Many thanks for your help and support. I will buy my parts from jegs no doubt for all your part number info, best manufacturer choice for quality. Once again THANKS! JAY JONES, EMAIL: jaymnlhkg@gmail.com
229 west jordan Ave, Bearden, Arkansas 71720-
Hi Jay,
Thanks for sharing such a detailed overview of your project. It’s clear you’ve put a lot of thought and hands-on work into your 2011 5.3L LC9 rebuild, and we’re glad to help guide you toward the right parts for a reliable, budget-friendly build with stronger low- to mid-range power and a noticeable idle. Since you’ve already handled the DOD/AFM delete the right way by plugging the solenoids and oil passages, you’ve got a solid base for adding a performance cam and valvetrain that won’t be held back by factory fuel-saving limitations.
For your goal of a daily-driver-friendly cam with more punch than stock and a little choppy sound at idle, look for a cam with around 210 to 218 degrees duration at .050, lift around .550, and a 112 to 114 LSA. These specs will give you a great blend of drivability and added torque down low, especially with your 3.73 rear gear and 4WD setup. Several brands offer drop-in cams for non-DOD setups, and JEGS carries performance cam kits that come complete with matching valve springs, retainers, and pushrods for ease of selection.
For the lifters, a good quality set of standard hydraulic roller lifters will match up perfectly since you’re staying with the stock block and non-VVT setup. Stay away from cheap or questionable aftermarket lifters. Comp Cams, Howards, or Lunati are excellent choices and are all available through JEGS.
Since you’re staying with standard bore and re-ringing the stock pistons, you’ll want moly-faced rings for better sealing and durability, especially if you’re doing a fresh hone. We can help you select the right ring pack based on your piston specs. JEGS also offers full gasket sets, including those with upgraded MLS head gaskets for added reliability.
Regarding the oiling system, the high-volume/high-pressure oil pump is a smart move, especially for a performance cam build. Melling makes a well-known HV/HP pump that fits your 5.3 and is available from JEGS. Make sure to pair it with the correct pickup tube and verify your oil pan clearance.
About the oil pressure relief valve in the oil pan: late-model Gen IV LS engines often have a bypass valve built into the pan. If you’re concerned about oil pressure dropping, you can install a block-off plug or stiffer spring kit depending on the pan design. We can help you identify the exact parts based on your oil pan casting number.
As for bearings, since you’re sticking with standard crank dimensions, JEGS has quality rod and main bearing sets from Clevite, and Sealed Power that work great for budget street builds. If you’re considering a pre-assembled short block, JEGS and ATK both offer LS short blocks with the DOD delete already handled and quality internals. It might save you time and provide peace of mind with a warranty included.
If you’d like help matching specific part numbers or building a full kit with everything you need, contact us directly at 1-800-345-4545 and speak to a tech support specialist. We’ll walk you through each component and make sure your build comes together with the right fit and performance. Appreciate your loyalty to JEGS and we’re honored to support your project. You’ve got the right foundation, the knowledge, and now the support to build something solid and fun to drive.
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