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Chevrolet Performance LS7 And LS427/570 Crate Engines Discontinued

Chevrolet Performance has discontinued its naturally aspirated 7.0L LS7 and closely related LS427/570 crate engines, GM Authority can confirm.

General Motors quietly pulled the plug on both the standard 7.0L LS7 and the LS427/570 crate engines recently, with the landing pages for both engines on Chevrolet.com now listing both engines as being discontinued products. GM has not yet provided a reason for discontinuing either of these engines.

The standard 7.0L LS7 is a naturally-aspirated V8 that first debuted in the C6 Corvette Z06 and was later used in the fifth-generation Chevy Camaro Z/28. The dry-sumped engine produces 505 horsepower at 6,300 rpm and 470 pound-feet of torque at 4,800 rpm. Key features include a cast aluminum block, forged titanium connecting rods, aluminum pistons and a forged steel crankshaft.

The LS427/570, meanwhile, was a more powerful iteration of the production 7.0L LS7 that was only ever offered as a crate engine through Chevrolet Performance. Unlike the motorsports-bred LS7, the LS427/570 utilized the wet-sump oiling system from the 6.2L LS3 for easier and less costly installation. It also came with a higher lift camshaft, bumping output to 570 horsepower and 540 pound-feet of torque – increases of 65 horsepower and 70 pound-feet over the standard variant.

LS7 in a C6 Corvette Z06

The LS7 and 427/570 crate engines were popular choices for engine swaps, especially among restomod builders and track day enthusiasts, so they will certainly be missed by the aftermarket community going forward. Chevrolet Performance still has plenty of other LS-based and LT-based crate engines to offer these customers, though, including the LS3, LS9 and LT1, among others. A wide variety of Small Block and Big Block crate engines are also still offered by the automaker for those looking for a motor for their classic car or pickup truck.

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Sam loves to write and has a passion for auto racing, karting and performance driving of all types.

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Comments

  1. So Long Partner…

    Reply
  2. Another sneaky move by gm to shove a lot of people were they don’t want to go. Makes me wonder why I can’t get magnaride shocks for my Caddy.

    Reply
    1. How is it sneaky? If it was sneaky, you’d not be reading about it here.

      Reply
  3. Without turning this into a politically charged post, I will say that time will tell. There are many on both sides of the argument that will tell and show you (with evidence) why their stance is the right one. The almighty dollar will ultimately determine if this strategy is a profitable one. If people don’t/won’t buy them, GM will have to reconsiser their strategy to electrify the world. If they are right, so be it. I, however, will not be buying any electric vehicles. There are millions of ICE V8’s for those of us who still want them.

    Reply
  4. Cam change for 65hp is a great swap for a stock motor.

    Adding LT headers for 28hp, HP tune for 30hp, and a new K&N filter and full-length SS exhaust gets an estimated 128hp. So, 570bhp and 128hp gets an estimated 698bhp. Leaving on the table of new rocker arms, springs, push rods, and valve job on those already potent heads, could net an approximate 40 more bhp, now you’re up to 738 estimated bhp. Let’s see, new LSX intake and throttle body, new injectors, and fuel pump, could net another estimated 30bhp, increasing the bhp to 763bhp. No block tear down or any super/pro chargers added.

    My point, you can’t do this with a 5.3 or 6.2 with the same results. C6’s are the most sought out corvette today and if you can’t get one like me, just have to wait. But many are adding the LS7 to the previous gens and doing so you certainly get lots of fun as a weekend warrior.

    The downside, cost! Close to 15k for the crate and adding the above mods, reaching around 23k just for parts. I see why gm is discontinuing the crate. Very expensive.

    I didn’t read gm was discontinuing OEM parts bin or performance parts bin, just the crate engine. Does anyone know?

    Reply
    1. I have one LS7 570 in a 2010 camaro. It put 562 to the wheels along with 509 wtq.

      Longtubes, cold air intake intake and HP tune along with the upgraded cam. Pulls like a freight train compared to my heads/cam LS3 with just over 500whp.

      Reply
      1. Rich, I’m getting ready to put my Ls7/570 in my 2010 SS. Did you have to change the wiring harness or does the stock 2010 SS just plug and play?

        Reply
  5. Unfortunately we don’t have a free market. We have a manipulated market.

    Government policies make EVs attractive. Federal credits, free charging (some places offer only 2 hours free) help support EVs. While the Government progresively makes ICEs prohibitively more expensive to operate.

    Ultimately the consumer will have no choice but to go EV. Once your hooked on EV, then they start charging you.

    The Government has to make up any oil tax revenue loss. So they’ll install trackers so they can tax you based on your mileage and road useage.

    Reply

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