58x 4.8, 5.3 ?????? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

JJAB · 01-13-2012, 06:27 PM

Guys, I am about to purchase a 2007 Silverado Classic. I am getting a heck of a deal on the truck but the down side is, it has a 4.8 with a lot of miles. For no other good reason, I know I am going to want to go in that motor and replace the crank to magically make it a 5.3. Here's my question, if I find a pre-2007 5.3 crank and rods, can I just take the reluctor ring(s) of of the 2007 4.8 engine and put it on the pre 2007 5.3 crank. This will give me a good reason to rebuild the engine anyways.

Also, it this is successfully done, with the engine cubic inches equating to 5.3, would a tune be necessary of just beneficial?

01-13-2012, 06:27 PM	#1
JJAB Registered User Join Date: Sep 2010 Location: Waco,Texas Posts: 143	58x 4.8, 5.3 ?????? Guys, I am about to purchase a 2007 Silverado Classic. I am getting a heck of a deal on the truck but the down side is, it has a 4.8 with a lot of miles. For no other good reason, I know I am going to want to go in that motor and replace the crank to magically make it a 5.3. Here's my question, if I find a pre-2007 5.3 crank and rods, can I just take the reluctor ring(s) of of the 2007 4.8 engine and put it on the pre 2007 5.3 crank. This will give me a good reason to rebuild the engine anyways. Also, it this is successfully done, with the engine cubic inches equating to 5.3, would a tune be necessary of just beneficial?



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