S1 vs s2 crank and mains vh45de

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Scorpius01
Posts: 12
Joined: Sun Mar 24, 2024 9:21 pm
Car: 90 Infiniti Q45

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In an interesting life lesson I found out that all vh45de bottom ends are not the same, all the info I found said they were. On the version 2 aka oval port there are 2 different bottom ends, the differences are the crank (main bearing portion) and the main bearings.
Whereas a majority probably came with the same crank and main bearings s1 and s2 .the one I got ahold of had all the thin bearings for the mains, instead of the 3 size bearings.
Solution came by using vk45/vk56 main bearings, width, ID, OD where exactly the same size, plastiguage said it was good.


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Q451990
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Joined: Tue Jul 23, 2002 8:21 am
Car: 1990 Q45 - 118K, 2022 Toyota 4 Runner, 2004 Frontier M/T - 108K, 2012 Xterra (Mom's), 2023 Rogue (Inlaws)
Location: Columbia, SC
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Here's hoping this post is never useful for me. :)


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