INTERNAL ENGINE MODIFICATIONS Valvetrain |Heads | Strokers | Design | Assembly

4.8 vs 5.3

Old May 9, 2006 | 08:58 PM
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Default 4.8 vs 5.3

what are the differences i heard that the block and the heads are the same so the crank and the pistons are different and thats it?
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Old May 10, 2006 | 12:37 AM
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crank, pistons and rods
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Old May 10, 2006 | 01:03 AM
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same block completely. 5.3 is basically a stroker 4.8
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Old May 10, 2006 | 01:51 AM
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dished vs flat top pistons, different rod and stroke length.

The 4.8 is clearly the superior motor.
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Old May 10, 2006 | 01:59 AM
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yea, pistons and crank and rods are the diff.
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Old May 10, 2006 | 02:24 AM
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4.8 pistons are flat, 5.3 pistons are dished.
4.8 crank has a shorter stroke than the 5.3.
4.8 rods are longer than the 5.3's.

I don't think one is "superior" over the other, they are just different.
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Old May 10, 2006 | 02:54 AM
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Theres a 10 horse diff from the factory is there any reason to care about this at all?
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Old May 10, 2006 | 03:27 AM
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Originally Posted by GoldenVelvet
dished vs flat top pistons, different rod and stroke length.

The 4.8 is clearly the superior motor.
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Old May 10, 2006 | 07:48 AM
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Originally Posted by GoldenVelvet
The 4.8 is clearly the superior motor.
Yes, it's a lot like Star Trek the Next Generation. In many ways it's superior, but it will never be as original as the first.

The 4.8's hp maybe rated 10 less, but there's a huge difference in tq.
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Old May 10, 2006 | 08:37 AM
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+1 for 4.8 liters being superior
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