What's the difference b/t the 4.8 and 5.3L motors
04-23-2010, 07:05 PM
#1
What's the difference b/t the 4.8 and 5.3L motors Just like title says. i am looking at buying a motor from a guy. he doesn't remember if it is a 4.8 or 5.3. Is the bore the same and the crank and rods different? Is there any casting #'s on the crank or block that will tell me what it is?
Thanks in advance for any input.
Thanks in advance for any input.
04-24-2010, 02:24 PM
#2
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The blocks are the same casting with the same bore. The block actually has a casting mark that says "4.8L/5.3L"
The 5.3L has a longer stroke and dished pistons while the 4.8 has flat-tops.
The 5.3L has a longer stroke and dished pistons while the 4.8 has flat-tops.
