What LS motor do I have?

To get the right parts, you need to know which version of the LS you are starting with. The easiest way to tell the difference is to check the 8th digit of the VIN code on the original vehicle. Follow this link to Identify an LS Engine by VIN.

How do I know what LS engine I have?

What LS Engine Do I Have? To figure out what LS engine you’re staring at, just consult the RPO code. The easiest way to do this is to find the VIN and reference the 8th digit.

What Gen is my LS engine?

If it has at least one pickup on the timing cover, it’s a Gen 4 engine. Next, you can look at the intake manifold. If the manifold is low, smooth, and rounded, it is a car engine, so if it’s a Gen 3, it will be an LS1 or LS6 engine.

How do I know what 5.3 engine I have?

The 4.8/5.3L motors are easy to identify by their large 4.8/5.3 casting mark on the front of the block, but there is no simple, external way to differentiate the 4.8 from the 5.3. The best way is to yank a head and measure the stroke.

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What LS is a 5.3 engine?

The 4.8L and the 5.3L engines share the same Gen III LS-series engine block and heads (upper end) and therefore, some parts interchange freely between these engines and other variants in the LS family.

How can I tell what LS engine I have without VIN?

The easiest way to tell the difference is to check the 8th digit of the Vehicle Identification Number (VIN) on the original vehicle. (See below.) If you don’t have the VIN, you can still identify the engine by visual inspection if you know what to look for.

How do you tell the difference between a 4.8 and a 5.3 LS?

Crankshaft and connecting-rod casting numbers are the real key to distinguishing between the two. If you have crank casting numbers ending in 216 and rods ending in 143, then you have a 5.3. If, however, your iron-block motor is sporting a 482 crank and 121 rods, then you have a 4.8.

Is the 5.7 Vortec an LS motor?

Although Vortec engines are “LS” based they are NOT LS engines IMO. … You can gain an inch or two by removing the plastic engine cover and cutting some of the plastic tabs on top of the Vortec intake manifold. This may be all you need for clearance and a Vortec will fit in your car.

Is an LM7 an LS motor?

Vortec series iron-block late-model truck engines (1999 and newer) are also LS based motors. … Engine codes for these motors look like this; LM7, LM4, L59, LQ9, and so on. LS engines can have an aluminum or an iron block. LS engines are ALL considered small blocks.

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Is a 5.3 Chevy engine a 327?

The 5.3L is not a 327 or even close to a 327. Not even related to a 327. The LS1 is 347.