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Offshoreonly.com (https://www.offshoreonly.com/forums/)
-   General Q & A (https://www.offshoreonly.com/forums/general-q-20/)
-   -   LS Build: In Progress (https://www.offshoreonly.com/forums/general-q/358652-ls-build-progress.html)

ezstriper 06-05-2019 06:20 AM
good luck on your water test ! been messing with LS stuff for long time, currant build twin turbo 6.0 in 19 eliminator Daytona jet. I have talked with others doing LS swaps and many have had revision issues, some engines with very little cam seem to, I think you may be into issues with those exhaust(hope I'm wrong) but running dry to the tips may be only way on many of these engines...

mggdoors 06-05-2019 10:56 AM
Originally Posted by ezstriper (Post 4690139)
good luck on your water test ! been messing with LS stuff for long time, currant build twin turbo 6.0 in 19 eliminator Daytona jet. I have talked with others doing LS swaps and many have had revision issues, some engines with very little cam seem to, I think you may be into issues with those exhaust(hope I'm wrong) but running dry to the tips may be only way on many of these engines...
When we initially built these and checked them I pulled all 4 risers and seen puddles of water in the manifolds on 3rd cylinder back on both banks. Now I see no water puddles, dampness, but do see droplets in the risers. Im sure some is sneaking by. I believe the reversion has to do with the firing order being that the 2-3 and 4-7 are swapped. Almost makes me want to order a custom ground cam in standard chevy firing order and just swap wires to correct coils and give it a test. Still possible being carbed.

SB 06-05-2019 11:20 AM
Y pipe it and introduce the water right after the y. double your exhaust pulses, :)

mggdoors 06-05-2019 12:25 PM
Originally Posted by SB (Post 4690215)
Y pipe it and introduce the water right after the y. double your exhaust pulses, :)
Like a 2-1?

mggdoors 06-06-2019 02:57 AM
Look what I found. Harris Marine - new zealand. Full aluminum jacketed headers for 1600 usd. Hmmmmhttps://cimg2.ibsrv.net/gimg/www.off...b7819c0d1.jpeg

mggdoors 06-06-2019 02:59 AM

corey331 06-06-2019 06:12 AM
Bad thing about those is, I don't see how you would be able to make them dry. Like ezstriper said, almost every successful LS swap I have come across that has any kind of cam at all has dry exhaust.

SB, I really like your idea of 2-into-1 exhaust, if for no other reason than it would sound nasty!!!!

Wildman_grafix 06-06-2019 11:01 AM
Originally Posted by mggdoors (Post 4690360)
Look what I found. Harris Marine - new zealand. Full aluminum jacketed headers for 1600 usd. Hmmmmhttps://cimg2.ibsrv.net/gimg/www.off...b7819c0d1.jpeg
Those are interesting, they make anything for BBC?

Wasted Income 06-06-2019 02:40 PM
I have two things to add to this thread
1:
https://cimg8.ibsrv.net/gimg/www.off...02e8a5e02e.jpg

2: LS vs BBC weights

A couple years ago a buddy weighed several shortblocks for fun.
Same day, same scale

LS1 = 180 lbs
LC9 = 200 lbs
LY6 = 310 lbs
393 stroker LS = 310 lbs
540 BBC dart iron block = 360 lbs

mggdoors 06-06-2019 03:49 PM
Originally Posted by Wasted Income (Post 4690473)
I have two things to add to this thread
1:
https://cimg8.ibsrv.net/gimg/www.off...02e8a5e02e.jpg

2: LS vs BBC weights

A couple years ago a buddy weighed several shortblocks for fun.
Same day, same scale

LS1 = 180 lbs
LC9 = 200 lbs
LY6 = 310 lbs
393 stroker LS = 310 lbs
540 BBC dart iron block = 360 lbs
https://cimg6.ibsrv.net/gimg/www.off...b5c595f2b.jpeg


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