How do I know if I have a LQ4 engine?

The ONLY difference between an LQ4 and LQ9 is the piston! There are NO embossed or etched exterior markings on the block or heads to indicate one over the other. There is a paper sticker applied to the back of the drivers-side head at time of manufacture that indicates the type of engine.

Is a L77 a LS?

Gen IV Vortec motors for pickup trucks, consisted of the following engines: 6.0L V8 LY6. 6.0L V8 L96. 6.0L V8 LFA….GM 6.0 Liter V8 Small Block L77 Engine.

Where is engine number on alloytec?

The Alloytec V6 engine serial number (1) is located at the rear of the engine cylinder block on the left-hand side, above the starter motor.

Where is engine number on L98?

It’s located on the drivers side, front of the engine, to the front of the cylinder head.

Is the L77 a good motor?

The L77 makes 362 horsepower and it’s a workhorse. This upgrade guide is going to be a little different from most of . This is because many of these engines are still used in commuters. Performance is valued if it can be done without flushing money down the gas tank.

How much HP can a L77 handle?

They can handle about 800 hp. and 6,500 rpm in boosted applications. If you’re getting forged pistons, upgrade to Forged Connecting Rods at the same time.

Where is the engine number on a Commodore?

Random. Same place – front of the block, on the passenger side. Close to where the air con compressor is mounted. You need a torch to see it.

When did the GM L77 engine come out?

The L77 is a Gen. 4, 6.0L, aluminum small block engine used in GM cars between 2011 and 2017.

Which is a better option for an L77 engine?

A better option is aftermarket heads. They reduce downtime, they’re all-new, and you can usually offset the added cost by selling your original heads. Valve angles are typically laid over to 13.5 degrees for increased piston-to-valve clearance.

What kind of valve does a L77 cylinder head use?

Check out Part 1 and Part 2 of our LS Spotter’s Guide.] … The L77 cylinder heads are similar to the LS3 heads except they used a heavier solid stem intake valve. The stock heads can be CNC-ported for more airflow. Flow numbers can be as high as 373 cfm at .700 lift. Lightweight hollow-stem LS3 valves will drop right in.

Do you need a steam kit for a L77 engine?

L77 engines are a popular choice for people that want to stay naturally aspirated, but if you do decide to boost, here are a couple of things to address: A 4-corner steam kit reduces hot spots that can cause the rings to butt and snap the piston’s ring lands.