Truck 6.2L (L87) vs Corvette 6.2L (LT2)

[TxTruckMan]

I searched but couldn't find anything recent comparing the 2021 6.2L to the Corvette 6.2L.  There is a topic on this for the 2014 6.2L, but I couldn't find anything recent.

 

Since 2014 the 6.2L in the trucks has stayed at 420HP and 460TQ.  I think the only difference in the Corvette back then was the Intake Manifold which bumped the HP up to 430.  But the 6.2L in the Corvette has now jumped from 430 up to 490 and torque went from 460 to 470.

 

So what's different between the LT2 and the L87?

 

Thanks.

[TxTruckMan]

Looks like I may have found the answer using Google.  Looks like they went to a new cam with the LT2, in addition to physical changes for the mid-engine installation.

[SILVER SLED]

3 minutes ago, TxTruckMan said:

Looks like I may have found the answer using Google.  Looks like they went to a new cam with the LT2, in addition to physical changes for the mid-engine installation.

It also as a higher rise intake manifold, supposedly because there is more "hood" clearance.  I've read of people with Camaros swapping to that manifold, it apparantly will fit under a new(er) Camaro hood.  

[TxTruckMan]

What about the the rest of the internals?  Are they identical?  Or are there differences between them?  Crankshaft, pistons, heads, valves?  I'm really wondering how hard it would be to incorporate the Vette changes into a truck like the ZR2.

 

Thanks.

[SILVER SLED]

59 minutes ago, TxTruckMan said:

What about the the rest of the internals?  Are they identical?  Or are there differences between them?  Crankshaft, pistons, heads, valves?  I'm really wondering how hard it would be to incorporate the Vette changes into a truck like the ZR2.

 

Thanks.

I’m thinking the 650 hp supercharged LT4 would be a an easier swap.  But I’m not sure of any internals of the LT2 other than the cam.  There are some minor external plumbing differences from what I’ve heard to swap that intake onto a Camaro LT1. The LT2 is a little higher rpm motor and maybe not as suitable for a truck.  The LT4 has a very mild cam and could be an awesome truck motor.  

[GETGONE]

Or just buy a Whipple or Magnuson kit that fit the 6.2 and will bump you up to 650HP without a tune running 5-8psi of boost.

[bjr2020 6.2]

I’m also interested in what else is different? From what I’ve read the crank rod pistons and possibly heads are the same? But as to the rest I don’t know.

[Transient]

A higher rev limiter for the Corvette would permit the higher peak horsepower, too.  Horsepower and torque curves cross each other at 5,252 RPMs.  The rev limiter in our trucks, iirc, is only a few ticks above that.  I think it's 5,600 RPMs.  I believe our trucks are still climbing in the horsepower curve when it's told to stop increasing RPMs by the computer. 

[TxSquid78]

Maybe this will help

https://inthegaragemedia.com/the-ultimate-lt-engine-guide/