5.3 shortblock differances??
Thread Starter
Joined: Apr 2005
Posts: 309
Likes: 0
From: New Berlin Wi
5.3 shortblock differances?? Lately I have been seeing alot of 2000-2001 5.3s on craigs list for cheap. Are there any major changes in the shortblock, (ie crank lenght or anything) compared to a newer motor say an 04 or 05. I'm not concerned with cams or anything as those would be replaced.
Thanks for the info.
Kory
Thanks for the info.
Kory
GEN III 5.3s are essentially the same. There were a few oddball alum block versions thrown in but the LM7 really didnt change
GEN IV 5.3's got the same flat tops as 4.8's for a bump in compression as well as AFM which most owners hate due to the increased oil consumption
Cranks are unchanged for 5.3/5.7/6.0. Car cranks were gundrilled to reduce weight
There isnt any noteworthy difference to suggest one is superior than another
GEN IV 5.3's got the same flat tops as 4.8's for a bump in compression as well as AFM which most owners hate due to the increased oil consumption
Cranks are unchanged for 5.3/5.7/6.0. Car cranks were gundrilled to reduce weight
There isnt any noteworthy difference to suggest one is superior than another
