Selling a great condition GM Gen III/IV 5.3L iron engine block and a matching, complete set of factory 706 aluminum cathedral-port cylinder heads. This is the perfect foundation for a budget LS swap, turbo truck build, or a reliable stock rebuild.
PRICING OPTIONS package deal for both the block and the complete heads is $525 dollars. If you want them separate, the 5.3L iron block alone is $300 dollars, and the pair of complete 706 aluminum heads is $275 dollars. TRADES WELCOME LET ME KNOW WHAT YOU HAVE TO TRADE I BUY SELL TRADE ALMOST ANYTHING, CASH IS KING THOUGH!
ENGINE BLOCK DETAILS 5.3L block is cast iron, which is highly desirable for boost or turbo builds. It is in great shape with the factory main caps included. There are no cracks or cross-threaded holes anywhere. The cylinder bores have just been freshly honed and are ready for immediate assembly.
CYLINDER HEAD DETAILS heads are casting number 706 with standard cathedral ports for excellent velocity and torque. This is a complete top-end assembly that includes all factory valves, springs, rocker arms with pedestals and stands, and a clean set of factory valve covers. There are absolutely no signs of warping, overheating, or deck surface damage. They are ready to bolt down.
COMPATIBILITY AND TERMS parts are a direct fit for building an LM7 or L59 engine. They are an excellent swap choice for a Silverado, Sierra, Tahoe, Yukon, or custom project cars.