Dt407 llss June 05, 2020 09:34AM
I have a llss with a dt407 bored out to about 468ci. I spun a bearing
And there is a crack in the #3 cylinder in the block. It does not have sleeves
And not sure if there is enough room to put sleeves.
I’ve got another block. I was wanting some more input On the 407. Has p pump
Big injectors and big fuel lines. Only have a s400 turbo right now. Would like to get bigger
Turbo eventually. Can it be girdled? Just want some input.
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Re: Dt407 llss June 05, 2020 11:33PM
Yes it can. What block are you running?
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Re: Dt407 llss June 06, 2020 01:22AM
I was gonna keep running the 407
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Re: Dt407 llss June 06, 2020 05:40PM
I was referring to if you have a C-1,2,3, or 4 block, the C-3 and 4 have thicker cylinder walls
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Re: Dt407 llss June 07, 2020 05:15AM
It is a c4
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Re: Dt407 llss June 07, 2020 05:51AM
If you want to use that block it’ll need filled and sleeved. We’ve run 4.5” bore for years with no sleeves and have never broke/cracked a cylinder wall
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Re: Dt407 llss June 07, 2020 05:53AM
It has already been filled
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Re: Dt407 llss June 07, 2020 05:16AM
This is the walls


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Re: Dt407 llss June 07, 2020 05:30AM
This is crack


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Re: Dt407 llss June 06, 2020 11:47PM
We bored our 407 block to accept 3/32 thick Power Bore ductile iron sleeves.Used John Deere 466 pistons (4.562) bore woth 5inch stroke to produce 490 cubes.
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