Noticable difference between 5.3 and 6.0?

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Originally Posted by casey23

i was kidding... I just wouldnt take out a 5.3 in a stock truck and drop in a stock 6.0 and expect alot .... but gains are great with tune,headers,camshaft.... cubic inch is allways king.... put a 232/236 in there while you have it out

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I THINK ILL FEEL A PRETTY GOOD DIFFERENCE JUST SWAPPING STOCK MOTORS,,295HP TO 407HP,,AND A CAM ON TOP OF THAT LOL

that's about like me going from the 4.3 to the 5.3

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Originally Posted by STUNNA

I THINK ILL FEEL A PRETTY GOOD DIFFERENCE JUST SWAPPING STOCK MOTORS,,295HP TO 407HP,,AND A CAM ON TOP OF THAT LOL

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.7L of displacement vs 1.3L. Like zebra said. Like a 4.3 to a 6.0.

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Originally Posted by pl4yboy

.7L of displacement vs 1.3L. Like zebra said. Like a 4.3 to a 6.0.

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Or think of it this way.......

The old 3.8 V6 from Olds/Buick cars is almost the same as a 5.0 V8 with 2 fewer cylinders.

3.8 = .6333333 L per cylinder
5.0 = .625 L per cylinder

So, if you can imagine the difference between those 2 motors, that's roughly the difference an extra 1.2L makes. Not exactly, mind you, just a point for comparison.

The 1.2L difference in going from a V6 to a V8 in my comparison would actually be a bit less dramatic than a 1.2L larger V8......because in the V6 to V8 scenario, part of the HP increase will also be absorbed by the larger rotating mass of the extra 2 cylinders. You will probably add rotating mass with a larger V8 as well (larger pistons), but not as much as 2 whole extra cylinders' worth. One way to get around, or at least somewhat mitigate the increased rotating mass issue is to use lightweight forged pistons in the larger motor. That of course requires rebalancing of the whole rotating assembly, yadda yadda yadda.

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Originally Posted by DigitalBoy0101

Or think of it this way.......

The old 3.8 V6 from Olds/Buick cars is almost the same as a 5.0 V8 with 2 fewer cylinders.

3.8 = .6333333 L per cylinder
5.0 = .625 L per cylinder

So, if you can imagine the difference between those 2 motors, that's roughly the difference an extra 1.2L makes. Not exactly, mind you, just a point for comparison.

The 1.2L difference in going from a V6 to a V8 in my comparison would actually be a bit less dramatic than a 1.2L larger V8......because in the V6 to V8 scenario, part of the HP increase will also be absorbed by the larger rotating mass of the extra 2 cylinders. You will probably add rotating mass with a larger V8 as well (larger pistons), but not as much as 2 whole extra cylinders' worth. One way to get around, or at least somewhat mitigate the increased rotating mass issue is to use lightweight forged pistons in the larger motor. That of course requires rebalancing of the whole rotating assembly, yadda yadda yadda.

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Yeah... Thats what I said. lol

Edit: Does anyone know where I got 1.3L? looking back now, I cant remember. ROFL.

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Originally Posted by pl4yboy

Yeah... Thats what I said. lol

Edit: Does anyone know where I got 1.3L? looking back now, I cant remember. ROFL.

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No.......I thought you figured something out I didn't easily see, why i ran with the 1.3L number you threw out LOL.

5.3L + 1.3L = 6.6L? Isn't one of the new Corvette motors a 6.6?

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Originally Posted by WARLOCK

Will I need injectors like you have? The cam listed above is close to yours right?

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i'd get bigger injectors just to be on the safe side ! 42's are really cheap now days

If you are only looking for a 13 you can keep what you have and mod it, BUT like everyone once you get to a goal you will set another... So your 13 will become a 12... and so on. I vote save your wallet later down the road and go 6.0 I still wish I did!

im in the same boat, im working on getting a 2004 lq9 6.0 out of a ss truck with 44k miles. trying to get it for $1200. should be a nice step up from the 5.3 maybe get a nice set of l92 heads and raunchy cam with a decent shot of nitrous. with a 6 speed manual if i cant destroy all of 3rd gear and some of 4th with my 20's ill be very surprised. ill keep you posted.

going from a stock cammed 5.3 to a stock cammed 5.7 i went from 13.88 to 13.26.

yes you will feel a difference.