1999 silverado 4.8 to 6.0 swap help, truth needed
#31
ok, so if i ask them to look at the head number and they say its 706 or 862 i should leave it alone because they are the bad one that crack?
#32
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So I've got a 4.8L 1999 rcsb mated to a manual transmission and I'm planning a 6.0L swap. Will I need the 6.0 w/ a longer crank or will it matter?
#33
#34
Ok guys, been hearing several different thoughts on a 4.8 to 6.0 swap. Ok, my truck is a 1999 ecsb 4x4 with the 4.8, i want to swap in a 6.0, everyone said it will go right in, any model 6.0 from 1999-06 , no problems, direct swap, THEN, I hear i need to stay away from any 1999-2000 6.0's because they had longer cranks and wont work with my current and stock 4l60e trans, they said to get a 2001-06 6.0 and it would work, just use the 4.8 flexplate, ok, all good. WELL, now im hearing that because my truck is a 1999, that the crank in the original 4.8 is also long, just like the 1999-00 6.0's have, so my original 4.8 flexplate wont work on the 6.0 to use my tranny. so, anyone here ever done the 4.8 to 6.0 swap ON a 1999 truck? If so, whats the truth and what do i need to make it work? remember, i want to keep my stock original 4l60e trans that is in the truck mated to the 4.8 (yes i will build the tranny to hold up to the 6.0)
SO, Truck is a 1999, original 4.8, 4l60e
was told to get 2001-06 6.0 and use my 4.8 flexplate on the 6.0 to use my tranny,
then heard that wont work because my 4.8 is a 1999 model and uses a longer crank, therefore, that flexplate wont work to mate the 6.0 to my trans.....?
So, if my truck were a say, 2003 with 4.8 and 4l60e, then i could get a 6.0 from 2001-06 and slap it right in, but, because its a 1999 that came with a longer crank in the engine, the trans in the truck wont work with the 6.0 because the flexplate..
HELP!!
SO, Truck is a 1999, original 4.8, 4l60e
was told to get 2001-06 6.0 and use my 4.8 flexplate on the 6.0 to use my tranny,
then heard that wont work because my 4.8 is a 1999 model and uses a longer crank, therefore, that flexplate wont work to mate the 6.0 to my trans.....?
So, if my truck were a say, 2003 with 4.8 and 4l60e, then i could get a 6.0 from 2001-06 and slap it right in, but, because its a 1999 that came with a longer crank in the engine, the trans in the truck wont work with the 6.0 because the flexplate..
HELP!!
#36
makes children cry
iTrader: (5)
oh, don't be so **** about it!
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RedXray (07-31-2021)
#38
makes children cry
iTrader: (5)
well that problem, good sir, is a topic for a different section and/or forum.
if you dig around, you'll find plenty of places that detail how to LS swap a GMT400 truck... but this one here's about trading short blocks in a GMT800 (which is WAY more straightforward).
if you dig around, you'll find plenty of places that detail how to LS swap a GMT400 truck... but this one here's about trading short blocks in a GMT800 (which is WAY more straightforward).
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