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Home > Manufacturers > Mast Motorsports > LS Hot Rod-Muscle Car Engines
Mast Motorsports 111-000 LY6 6.0L 420HP engine, complete with harness & ECM
Item Id:MST-111-000
Mast Motorsports 111-000 LY6 6.0L 420HP engine, complete with harness & ECM
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Mast Motorsports 111-000 LY6 6.0L 420HP engine, complete with harness & ECM

LY6 6.0L 420HP engine, complete with harness & ECM, Air Filter, Starter, Truck Intake, 6,200 RPM Red Line, Stock Idle, 18-month limited warranty. NOTE: Does not include accessory drives system, headers or fuel pump.

The LY6 6.0L engine provides a great value for increased power over other GM small block offerings such as the LQ9 6.0L GM Gen III engines. This iron fuel injected small block also weighs in at 200lbs lighter than competitive GM big block engines. The LY6 features a 4.000” bore and a 3.622” stroke as received from GM. This LY6 engine utilizes Variable Valve Timing, , an 87mm Drive by Wire Throttle, new high flow intake manifold, and high flowing cylinder heads to pump out over 420hp. The M-90 ECM harnesses these technologies with an OEM calibration to provide power, performance, and durability for any airboat application.

Every Engine is dyno tested prior to shipment. Dyno testing is performed in our state of the art Super Flo engine test cell. A dyno sheet is provided with each engine. This ensures that your engine delivers the power and performance as advertised. Our engines deliver REAL numbers you cabn count on.

Every engine is hand assembled, precision balanced and blueprinted. We build our engines using only the highest quality components from recognized leaders in the industry. Our tolerances meet or exceed OEM specifications for smooth operation, maximum performance and repeatable results. We take such pride in our engines that we sign and serialize each one.

Every engine is engineered for maximum power with zero engine knock on pump gasoline. The number one killer today of performance engines is engine knock. We utilize pressure sensative sparks plugs costing $3000 each to fine tune each motor for zero engine knock under load all the way up to the red line.You can safely run our engines on 93 octane pump gasoline with no octane boosters or race fuel required.

Every engine includes items others don't.When we say maximum performance and extreme value, we mean it! We include a marine grade fully tuned ECM and tailered wiring harness. They include functions like fuel pump, starter, electric fan,drive by wire throttle body, Vintage Air compatibility and an integrated fuse box system. With our sytem you get to run the factory drive by wire throttle body and functions others don't offer or charge extra for.We literally save you thousand over competitive engines. You choose the balancer, water pumpand oil pan for your application (F-Body, Y-Body or Truck). Then add the headers, accessory brackets, and fuel pressure regulator and you're good to go.

Every engine is backed by a great warranty.We are so confident in our hand built turnkey engines that we back every one of them with a rock solid 18 month limited warranty

Reward Points 65 points will be rewarded to you when you buy this item.

 
We have access to over $60 Million of inventory in 16 distribution centers nationwide to fill your orders from on a daily basis. Our site currently has over 350,000 items and more than twice that many yet to be added. Our product offering could be divided into several major categories. Parts for; drag racing, circle track racing, road racing, off road racing, street/strip, show vehicles, strictly street vehicles, trucks & SUVS, general repair and maintenance.
You may find that there are some product lines that you will not find on our site or that we refuse to sell. We are committed to selling only the best quality merchandise from the most respected manufacturers in the industry. If we are not willing to use a product ourselves, we will not sell it.
This is especially critical when it comes to racing internal engine components such as complete rotating assemblies, crankshafts and connecting rods. We have seen too many of our fellow racers be victims of this cheap offshore junk and we will not contribute to the problem. Please do not ask us to.