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Every great build needs a solid foundation! For that reason, we take the hard work out of the picture by selling short blocks that are ready for you to complete yourself. Our LS Based Short Blocks are most commonly packaged as the engine block assembled with Crankshaft, Connecting Rods, Pistons, Rings and Bearings.


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ATK SP99 Chevy Dart 441 Stroker Short Block 58 Tooth Reluctor Wheel Crate Engine
ATK SP99 Dart LS Next 441CI Stroker Short Block Forged Pistons 58 Tooth
Our Price (USD): $5,799.00

This short block is built with a mild compression ratio great for easy tuning on pump gas or running a small shot of nitrous. If used with nitrous there will be no warranty as there is more room for error with nitrous systems and tuning. more info
ATK SP99-B Crate Engine
ATK SP99-B Dart SHP LS Next 388CI Boost Ready Short Block
Our Price (USD): $6,499.00
Sale Price: $6,199.00

When a stock block isn't enough, this is what you want! This shortblock is built with the perfect combination for people looking to make big power! Using all name brand components, hand built, balanced and blueprinted, its hard to be an ATK Boost Series setup! more info
ATK SP100 Crate Engine
ATK SP100 Dart SHP LS Next 441CI Short Block
Our Price (USD): $6,499.00
Sale Price: $6,199.00

When a stock block isn't enough, this is what you want! This shortblock is built with the perfect combination for people looking to make big power! Using all name brand components, hand built, balanced and blueprinted, its hard to be an ATK setup! more info
ATK SP101 Crate Engine
ATK SP101 Dart SHP LS Next 427CI NA Short Block
Our Price (USD): $6,499.00
Sale Price: $6,199.00

When a stock block isn't enough, this is what you want! This shortblock is built with the perfect combination for people looking to make big power! Using all name brand components, hand built, balanced and blueprinted, its hard to be an ATK setup! more info
ATK SP101-B Crate Engine
ATK SP101-B Dart SHP LS Next 427CI Boost Short Block
Our Price (USD): $6,499.00
Sale Price: $6,199.00

When a stock block isn't enough, this is what you want! This short block is built with the perfect combination for people looking to make big power! Using all name brand components, hand built, balanced and blueprinted, its hard to be an ATK setup!

Upgrade to a CCW Crankshaft for an additional $350.00. CCW cranks are meant for high boost/RPM applications.
more info