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May 28, 2011 | 08:47 PM

#11

Huntingman2706217

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From: Griffin G.A.

Quote:

Originally Posted by 2doorfury

there isnt a code on the block?? i know the 6.0's are stamped 6.0L on the side of the block..

where abouts?

May 28, 2011 | 09:32 PM

#12

xlcooplx

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From: Conway, SC

behind the accessory/alt bracket on the DS of the engine. its also cast on the rear of the block behind the flywheel.

May 29, 2011 | 02:52 PM

#13

kr1s

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From: Texas

Quote:

Originally Posted by Gadgetized

I think the best easiest way to tell would be to remove a spark plug. Turn the engine over by hand until the piston is up. Take a piece of wire and drag it across the top of the piston. The 4.8 has a smooth flat top, and the 5.3 has a dished piston.

so the one on the left is a 5.3? :O

May 29, 2011 | 03:26 PM

#14

xlcooplx

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From: Conway, SC

no, left is 4.8L

May 29, 2011 | 07:22 PM

#15

blackcash

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From: Ontario, Canada

Also you have a 2000, if the motor is a 2007 the harness is no bueno for you and the motor has a 58(?) tooth reluctor wheel, you need one with a 24x or a converter box. Knock sensors are also located elsewhere (just need an extension harness). Disregard this if it out of a 2007 classic.