New from Summit Racing is this Summit Racing 450 HP Remanufactured 5.3L LS Crate Engine.

It’s an LS-Series long block rated at 450bhp and accompanied by and 480 lb-ft of torque.

The engine is machined and assembled for Summit Racing by us by the highly-rated crate engine experts, ATK.

It is based on the 5.3-litre LM7 found in 1999 to 2007 GM pickups and SUVs, in the USA but Summit and ATK have warmed it up a bit with a Summit Racing Pro LS roller camshaft. It’s even backed by a two-year, unlimited mileage warranty.

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