
Add an NOS nitrous kit to even a stock LS1 and you're talking about some serious power. Add it to a modified motor and you're running 10s. The same goes for blowers and turbos, as both the LS1 and LS2 respond very well to boost.
Full Answer
What makes the LS1 block design so special?
The LS1 block design has many features that help make it superior to its predecessors and capable of handling plenty of power. The overall design is robust; it’s a deep-skirted block with (iron) six-bolt mains and extra ribbing in critical areas (designed with finite element analysis, or FEA, modeling).
How much does a GM LS1 engine block weigh?
However, by casting the iron liners in place with the block, GM was able to create a reliable method with little weight penalty. As a result, the LS1 block weighs a svelte 107 pounds; its iron-block cousins weigh an additional 88 pounds.
How much power can you get from an LS1 and LS2?
Since buildups most often include a power goal, we decided to provide LS1 and LS2 recipes to reach 400 hp, 500 hp, 600 hp, and even 700 hp. It's obviously possible to eclipse these numbers, but we thought these power levels best represent what can still be construed as real street motors.
What is an LSX engine block?
GM’s encore to the standard, 9.26-inch-deck LSX block was a tall-deck (9.70-inch) version to allow a 4.350-inch-stroke crank (or more). Some of the fastest LS-powered cars in the world use LSX blocks as their foundation.

How much horsepower can a stock LS1 block handle?
how much HP a stock LS1 engine can handle? Most people will tell you 500-550 rwhp is a reasonably safe limit to push a stock bottom end. The weak link is usually the pistons.
How much power does a stock LS1 make?
As a starting point, the LS1 was an eye-opener for Chevy fans. Its all aluminum architecture made it significantly lighter than past GM V8s, and power was great: the engine was rated at 345-350 horses in the Corvette (depending on model year) and would check in at as much as 325 hp in the F-body cars.
How do I get more power from my LS1?
On a stock LS1 engine, the following upgrades can improve performance and fuel economy:A cold air intake kit.Headers.An aftermarket exhaust system.A computer programmer.
How much boost can I run on a stock LS1?
on a stock ls1/ls2. These boost numbers can be plenty safe so long as the car has the proper tune. that PSI *can* be safe detonation wise (with a really good tune!)...but common evidence suggests that 500-550rwhp is about the limit of stock internals, mainly the pistons and con rods begin to start dying over 550rwhp.
How long will a LS1 engine last?
The LS1 life is estimated at 200,000 miles by GM. Most engines have 100,000 miles on them.
How much horsepower does a 5.7 LS1 have?
305-350 hpLS Family = Gen. 3, 5.7L, Aluminum Block, Car EnginesPerformance SpecificationsCompression Ratio10.2:1Horsepower Rating305-350 hpTorque Rating335-365 ft./lbsJun 6, 2017
How much HP can a stock LS1 fuel pump handle?
450 hpFuel System and Tuning Upgrading to larger injectors is needed for more. Fuel pumps: The factory pump becomes a limitation at 450 hp.
How much HP does LS1 have?
Horsepower & TorqueHorsepower1997 – 2000: 345hp @ 5,600 rpm (257kW) 2001 – 2007: 350hp @ 5,600 rpm (261kW)Torque1997 – 2000: 350 lb-ft @ 4,400 rpm (475 N⋅m) 2001 – 2007: 365 lb-ft @ 4,400 rpm (495 N⋅m)Jan 7, 2019
Whats better LS1 or LS2?
The latest model of the LS1 engine came with an LS2 intake, which has better horsepower. With testing, the LS2 engine intake will make about 10 horsepower better than LS1. Both flow well, but LS2 is slightly better. For the exhaust manifold, one of the amendments made is a lighter exhaust manifold.
What LS is best for boost?
If you're planning on boosting your project the 4.8L truck engine will be perfect for you. The 4.8L can take insane amounts of boost completely stock and will really perform well. If you don't want a barebones 5.3L or 4.8L you could always step up to a 6.2L truck block which is based on the LS3 engine.
How much does it cost to supercharge a LS1?
Expenses, a supercharger for an LS1 probably costs in and around the realm of $3200 and that should (but not necessarily does) include brackets, hardware etc etc....
How many kW does a LS1 have?
PowertrainsEngine displacement; configurationEnginePower5.7 L (5665 cc); V8Generation III Alloy (LS1)235 kW (315 hp)5.7 L (5667 cc); V8245 kW (329 hp)7 more rows
How much horsepower does a blown LS1 have?
Even in emissions-legal trim, a blown LS1 will pump out over 500 wheel horsepower, with 800 wheel hp available for a serious stroker effort. With turbo motors, the sky is the limit, as 1,000 hp is a common occurrence, with the ability to adjust the power output by turning a simple boost knob.
What is hot setup on LS1?
For LS1 and LS2 motors, the hot setup is actually the factory LS6 intake, though in the case of the LS2 it is necessary to step down in throttle body size. There are a number of other intakes available for the LS-series motors (with more on the way), including carbureted combinations from Edelbrock and GM Performance Parts.
What is the LS1 engine?
The LS1 engine is a Gen III 5.7L aluminum-block V8 car engine that first appeared in the 1997 Chevrolet Corvette. The LS6—introduced for the 2001 Chevy Corvette Z06—is also a Gen III 5.7 aluminum-block V8. While the LS6 emerged from the factory with more power than the LS1, both engines can make the same power with common upgrades. You’ll see plenty of LS6 references below as a result. For a primer on the LS engine universe, read LS Engines 101: An Introductory Overview of the Gen III/IV LS Engine Family.]
What is a stock LS6?
An aftermarket exhaust system. A computer programmer. A stock LS6—a Gen III 5.7L aluminum block V8, just like the LS1—has more power than a stock LS1, but both can make the same power with common upgrades.
What bolts did the 2001 LS1 use?
In 2001, the LS1 used the stronger LS6 bolts. Rods with the 2001+ bolts are good to 500 hp and 7,000 rpm (naturally aspirated). With boost or nitrous, 700+ hp can be achieved if rpm is limited to 6,500. Forged connecting rods are another popular upgrade.
How much horsepower does a Vortec LS1 have?
The aluminum blocks are not as strong as the LS-based iron-block Vortec truck engines like the LQ4 and LQ9 , but both the LS1 and LS6 can be pushed to over 850 horsepower with upgraded internals. If you’re on the hunt for the best mods for your LS1 engine, you’re in the right place.
What is the LS6 Corvette?
The LS6—introduced for the 2001 Chevy Corvette Z06—is also a Gen III 5.7 aluminum-block V8. While the LS6 emerged from the factory with more power than the LS1, both engines can make the same power with common upgrades. You’ll see plenty of LS6 references below as a result.
Which is better, LS1 or LS6?
Milling/Decking: Without modifying the intake manifold, LS1 heads can be taken to 62cc chamber volume. The LS6 can be taken down to 60cc.
How much horsepower can a stock crank handle?
The stock crankshaft can handle about 900 hp and 7,000 rpm (for a limited time). A forged crankshaft upgrade will add strength to the bottom end. Stroker cranks also add extra displacement. If rods and pistons are replaced, it makes sense to upgrade the crank at the same time.
What does 500RWHP mean?
It's the piston ring lands that tend to let go around the 500RWHP mark.#N#The top of the piston breaks off and does a good amount of damage in the process.#N#Of course there will always be people who make more power that holds up just fine but others have popped at lower HP numbers.#N#A good tune helps with the longevity.
Can LS1 engines fail at #5?
Most LS1 engines at high power levels fail # 5 or # 7 piston so you need to ensure sure that the air fuel ratio is not too lean on those specific cylinders other wise you can definitely hurt pistons very quickly. Peter. Click to expand... That's exactly why we recently invested in a fuel In jector flowbench.
