GM Performance crate engines (GM's performance parts line, also sold under the Chevrolet Performance name) and engine blocks. The Chevy crate engines include LS3 430 and 495 HP, LSX 376-B15, CT525 and the supercharged LT4, the ZZ6, 350 HO, Vortec L31 and CT400 small blocks, 454, 502, ZZ502 and ZZ572 big blocks, plus GM LSA and big block engine blocks. Several circle-track engines are sold for competition use only; this is stated on each product page.
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GM Performance (Chevrolet Performance) crate engines
These are General Motors' own performance crate engines, sold over the years under the GM Performance Parts and Chevrolet Performance names. The range covers modern LS and LT engines, classic small and big block Chevys, circle-track race engines and bare blocks.
GM crate engines by family
- GM LS & LT: 8 listings, $6,043 to $19,745
- Small block Chevy: 6 listings, $5,449 to $8,901
- Big block Chevy: 5 listings, $8,972 to $20,063
- Engine blocks: 3 listings, $2,672 to $3,808
Highlights
- LS3: 430 HP and 495 HP versions, long block or complete.
- LT4: the supercharged 6.2L Gen V V8.
- LSX 376-B15: GM's LS built for boost.
- ZZ6, 350 HO and Vortec L31: classic small block Chevy crate engines.
- 454 HO, 502, ZZ502 and ZZ572: big block Chevy crate engines from 438 to 720 HP.
- CT400 and CT525: sealed circle-track engines for racing.
Several GM Performance race engines carry competition-only wording on the product page. Make sure the engine you choose is legal for how the vehicle will be used.
Frequently asked questions
Is GM Performance the same as Chevrolet Performance?
Both names refer to GM's own performance parts line. The crate engines use the same GM part numbers under either name, and our listings show the GM part number for each engine.
Which GM crate engine is best for an LS swap?
The LS3 is the most popular choice. Read our LS swap guide and GM LS engines explained.
Related: LS and LT crate engines, small block Chevy crate engines, big block Chevy crate engines, Chevy firing order.