LS1/6 Swap into 5.3L ECSB...
03-25-2007, 07:12 PM
#11
Originally Posted by Brian@JPA
there is no replacement for displacement. 6.0>5.7
I would say the 5.7 and 6.0 are very similar in performance though.
03-25-2007, 10:21 PM
#15
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If there were an 8.1L LSX engine im sure you would! There many more 6.0 engines available and I think you can get a new one for a little over 3 grand from GM. The LS1's are usually much more expensive, especially new.
03-25-2007, 11:48 PM
#16
Originally Posted by Leroy_454
If there were an 8.1L LSX engine im sure you would! There many more 6.0 engines available and I think you can get a new one for a little over 3 grand from GM. The LS1's are usually much more expensive, especially new.
06-21-2007, 02:35 PM
#18
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I know this is an old post, but I am interested in this for my truck. Are you guys saying that all of the LSx based motors 5.3, 5.7.6.0 have the same motor mounts, transmission mounts, accessory holes everything. I would like to go from the 5.3 to an LS1. I really miss the way my 5.7 tahoe used to run this 5.3 doesn't do anything till 4000 RPM which sucks for a truck.
06-21-2007, 03:11 PM
#19
Originally Posted by z71gmc06
I know this is an old post, but I am interested in this for my truck. Are you guys saying that all of the LSx based motors 5.3, 5.7.6.0 have the same motor mounts, transmission mounts, accessory holes everything. I would like to go from the 5.3 to an LS1. I really miss the way my 5.7 tahoe used to run this 5.3 doesn't do anything till 4000 RPM which sucks for a truck.
Yes to all of the aboive questions, but the 5.7 LS1 and the 5.7 OBS truck motors are TWO different motors with two different power bands. If I were you I would change the cam in the LS1 to get the TQ down low like you are looking for.....or just add a Radix to the 5.3 make more power / TQ than the LS1 and call it a day
06-21-2007, 06:00 PM
#20
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Originally Posted by Ferocity02
With the new tall deck LSx block you can build a 511ci smallblock LSx. That's 8.4L, in a smallblock! Simply amazing.
That is just out of control! How much would something like that cost. But it is a beautiful thing........
Last edited by Mark Johnson; 06-21-2007 at 07:48 PM.