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hey guys im just doing some research. whats better the 41 or 45? whats the bore/stroke of each. wichone comes with titanium valves etc etc.

whats factory redline for each?

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Apparently the VH41's are the more advanced motor, with a better flowing head and a more over-engineered approach. So the best of both worlds is to build one with VH45 internals.

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Oh a very interesting bit of info here..

3.I have a friend who is transplanting a VH41 into a Sylvia now 4wd. The VH41 came out in a 4 wd at some point and some have sumps with diff mountings and a whole through the sump for a trans axle. I have been following his progress, and whilst things are tight it is coming together neatly. The back of the engine is about an inch from the firewall and he seems to have fabricated a neat header exhaust system. You are quite right we are right hand drive down here which has its own set of challenges when modifying.

VH41 Twin turbo GTR/GTS4.

Would be quite interesting. :P

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Yes here is the thread with the basics:

http://www.nissanv8.com/viewtopic.php?t=11

As you can see the earlier engines were the over-engineered ones, with the cost cutting occurring later on. Early Vh45's are apparently fine with the exception of their worse designed ports and the minor thing of the plastic timing chain guides... Althought apparently later VH45's solved this, and used oval intake ports. Would look like that's the better option then. Just don't go for one of the '96 and later ones.

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there some very good links. :) i quitwe like the titanium valve idea on the vk45 :stupid: but i rekon a early vh41 seems to be the go

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On 4/8/2007 at 10:35 AM, T04GTR said:

hey guys im just doing some research. whats better the 41 or 45? whats the bore/stroke of each. wichone comes with titanium valves etc etc.

whats factory redline for each?

lol.... 12yrs later, ive come full circle.  doing the same research... vq killing my life

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12 year revival from the OP, that's a good effort.  I put a vh45 in a 350z and abuse it all day long but it's only NA.  From the vh45 community I know a lot of the drifters suffer from oil starvation issues at high rpms / being sideways.

I haven't read your thread in a while but I do recall some issues with your vq.. hope I didn't make a mistake putting a vq in my 180, anyway as others have suggested the vk may be a better platform.

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