“Selecting TurnKey Engine Supply for my LS motor was an easy decision for me. One of the biggest benefits was the simplicity and ease getting a complete turn key motor that is basically ready to drop in and go – as the company’s name implies, “drop in and go” is TurnKey’s specialty. The fact that TurnKey uses all new GM parts (as well as specialty parts when called for) and dyno tests each motor before they ship it out gives me great confidence that I will have solid motor that I can rely on. Additionally, I was fortunate enough to personally visit TurnKey’s impressive, well organized facility in Oceanside, California where I was able to meet with the owners (Korey and Kolby Enger) as well as the individual who would be building my motor. After meeting with the guys at TurnKey, I knew I made the right decision for the Silver Bullet.” Jeff Mortenson

TurnKey Engine Supply LS1 420 HP motor

Complete Ignition - 5 Wire Hook-up
Coil packs, wires and plugs
Delphi ECM with TurnKey calibration
Custom marine grade engine wiring harness
Uses all OEM connectors
Electric fan controls

Complete Accessories
Alternator and water pump
Serpentine belt system
Brackets and tensioners

Complete AN Fitted Fuel System
AN fitted fuel rails
EFI fuel pump kit
Pre-filter
Fuel pressure regulator
6 & 8 fuel line fittings with o-rings & crush washers

Complete Detail Package
Engine oil and filter
K&N air filter
Hardware kit
Motor mount bolts
Oil temp. sending unit port
Water temperature sending unit port
Vortec engine covers
Installation guide

Package Includes
Flywheel or Flexplate
Starter
Exhaust manifold

420 H.P LS1/LS6
390 Ft Lbs. Torque
Type: 5.7L V-8 Small Block
Displacement: 5665 cc (346 c.i.)
Compression ratio: 10.1:1
Bore x stroke: 3.90" x 3.62"
Fuel system: sequential fuel injection
Rev Limit: 6000 rpm
Block: cast aluminum
Cylinder head: cast aluminum
Intake manifold: composite
Connecting rods: forged powder metal