Corvette head cast in iron?
2009 should be a LY6 which is a cast iron block and aluminum heads with a 823 casting.

They are usually top speed limited to 98mph.

If you have it tuned then you would probably be able to do about 130-140mph fairly easy or until the driveshaft decides to turn into a wet noodle. These trucks dont use/take/accept a "Performance Chip". that was something from 30 years ago.

 

. These trucks dont use/take/accept a "Performance Chip". that was something from 30 years ago.

Exactly!!! I could let him check out my 91 Trans Am.....It has a performance chip! LOL!!!

 

Each tire is rated to carry 3,000lbs each. Im not a math teacher but empty that leaves about 6000lb of Xtra speed available above 116 mph.

Not sure what you even mean by that statement "6000lb of Xtra speed available above 116".

Not sure how to calculate that but I do know load tires (LT) are tuff

FYI: LT does not mean load tires.

On tire sizes starting with P, where "P" means passenger car.
On tire sizes starting with LT, where "LT" means light truck.

 

Not sure what you even mean by that statement "6000lb of Xtra speed available above 116".

This. OP, please elaborate. No idea what you are after. If you're trying to go way faster than 100mph without at least upgrading the driveshaft, you're getting into somewhat dangerous territory.

 

GPS verified at 134 in my 2009 ccsb with the 5.3L... Also this is the driveshaft from said truck several years after. Fun fact I was only going 82 on the hwy with cruise set when it decided to let loose. Note this seems to be more common on Crew cab 2wd as this is the longest one piece on these models. It should be a 2piece if doing non normal things with it.

 

I wasn't a math major, but from his calculations, I think the OP majored in Pharmaceuticals.

 

That might be the best response of 2024!!