Built through a collaboration between Boostline Performance and Journey HQ, this turn-key 5.7L LS package is designed for customers looking for a proven, ready-to-run combination. Whether you're swapping an LS into a street car, truck, or weekend toy, this package delivers reliable performance, modern drivability, and excellent value that eliminates any guesswork.
Build Specs:
GM Iron 5.3 Block
GM Stock 5.3 Crank
GM Gen4 Stock Rods
ARP Rod Bolts
Hypereutectic Flat Top Pistons
Performance Ductile Moly Rings set: 1.5, 1.5, 3mm
Stock Replacement Lifters and Trays
Single roller timing chain & gear set
Cloyes timing chain dampener, also added to all gen3 builds
Pushrods, one piece - hardened, 7.400”
GM Rockers with BTR trunnion kits installed
BTR Truck Norris Camshaft
GM 243/799 Heads, remanufactured - New springs & seals
Clevite Main and Rod Bearings
Durabond Cam Bearings
New block plug kit and barbell
New Oil Pump
New Head Bolts
Fel Pro Gaskets Throughout
Cometic MLS Head Gaskets
GM stock valve covers
GM stock truck oil pan and pickup tube
GM stock front cover
GM stock valley cover
GM stock rear seal housing
Summit Racing Fabricated Intake Manifold and Fuel Rails
GM Ignition Coil Set
GM Ignition Wires
DW Injectors
TR6 NGK Spark Plugs
87mm Gen 4 Drive by Wire Throttle Body
Holley Terminator X Max with Drive by Wire and 4l60/4l80 Transmission control
