Crate Engines & Long Blocks

Crate Engines & Long Blocks

Complete crate engines, long blocks, and short block assemblies give builders a reliable, matched-component starting point for engine swaps, restorations, and high-output project builds where sourcing a core and rebuilding from scratch costs more in time and risk than a professionally assembled replacement. The most sought-after crate engine platforms include the GM LS family in 5.3L, 6.0L, and 6.2L displacements, the Ford 5.0L Coyote and 7.3L Godzilla, the Chrysler 6.4L Apache HEMI, and small block and big block Chevy stroker combinations in displacements from 383 to 496 cubic inches. Long block assemblies include cylinder heads, camshaft, and valvetrain already installed, simplifying installation for most engine bay configurations, while short block assemblies are the preferred starting point for builders who want to specify their own top end components for a custom power and compression target. The swap market for all these platforms is mature, with engine mounts, wiring harness conversion kits, and transmission adapter plates available for hundreds of donor chassis combinations.

Popular Upgrades

Top-selling crate engine products include GM Performance LS3 and LT1 430 to 460 horsepower long blocks designed for drop-in Camaro and Corvette replacements, Ford Performance Godzilla 7.3L long block and crate engine packages for truck and off-road swaps demanding maximum low-end torque, Mopar Performance 6.4L Apache HEMI crate packages for Challenger, Charger, and Durango replacements requiring factory warranty support, and Blueprint Engines budget small block Chevy 383 and 400 stroker short block assemblies built around forged rotating assemblies for builds targeting 500 to 650 horsepower. Complete turnkey dressed engines from ATK High Performance, which include intake manifold, carburetor, and headers, are popular for classic muscle car and hot rod builds where minimizing custom fabrication is a priority.

Performance and Handling

For forced induction and high-compression builds, crate engines built around forged pistons and H-beam connecting rods handle boost and nitrous reliably where factory cast rotating assemblies fail under repeated stress above 450 to 500 horsepower. Builders planning a turbo or supercharger installation on a crate engine should select builds with 9.0 to 10.0 to 1 compression ratios to preserve adequate detonation margin on pump gasoline with boost pressure added. Pairing a new crate engine with a professional dyno tune, correct oil control, and proper cooling system upgrades extracts the full power potential of the assembly while protecting the warranty and long-term reliability.

What crate engine fits a 1967 to 1972 Chevrolet Camaro?

The GM LS family is the most popular crate engine choice for first-generation and second-generation Camaro builds because LS engine mount kits, transmission adapters, and wiring conversion harnesses are widely available for these chassis, making the swap straightforward compared to non-LS alternatives. The LS3 6.2L produces 430 horsepower in naturally aspirated form and accepts a wide range of bolt-on upgrades, while the LSA supercharged 6.2L from the fifth-generation Camaro ZL1 provides 580 horsepower with factory supercharger hardware. SBC 350 and 383 stroker replacements are the choice for builders restoring a period-correct appearance while improving reliability with modern internal components.

Do crate engines come with a warranty?

Most performance crate engines include a limited manufacturer warranty covering defects in materials and workmanship, typically ranging from 12 months to 3 years depending on the builder and the engine's intended use category. Street-driven applications generally qualify for full warranty coverage, while competition-use and race-designated engines are often sold without warranty or with a reduced coverage period that excludes failure from competition use. Always confirm intended use at the time of purchase and retain all installation documentation in case a warranty claim is needed later.

Why These Parts Fit Right

Crate engines and long block assemblies in this collection are listed with specific vehicle application compatibility, transmission bolt pattern, oil pan clearance notes, and accessory drive configuration data to confirm fitment before ordering. Swap-specific product pages include recommended motor mount kit and wiring harness conversion options for the most popular donor chassis. Fast shipping from US-based warehouses gets your engine on the way quickly, and expert support is available for any swap or application fitment question.

Complete your engine build with performance exhaust upgrades from our exhaust collection, maximize induction with products from our air intake systems collection, and dial in chassis dynamics with parts from our suspension catalog.