Vh45 and Vh41 exhaust manifold compatibility? Head differences?

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Stinky
Posts: 83
Joined: Tue Feb 07, 2006 7:12 am

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Hi guys. I'm working on swapping a vh45 into a bit smaller car. I know the vh41 is slightly narrower and that it uses smaller exhaust manifolds. The vh45 will not fit with the stock manifolds so I was hoping that using the smaller vh41 manifolds would be enough.

1. Will vh41 exhaust manifolds bolt to the vh45 (91)?2. Are the vh41 heads any different that they would account for difference in width?

If the vh41 manifolds fit does anyone have some they would like to part with cheap?

Thanks


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sijoko
Posts: 961
Joined: Fri Jul 26, 2002 6:54 am
Car: Black 1994 Infiniti Q45 Turbo, Pearl White 2014 Maxima Sport
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The stud patterns are different between the two engines. The only way you can make the VH41 manifolds fit the VH45 is to use adapters.

As far as the manifolds themselves, the ones on the VH45 are pretty nice. They are tubular and don't have any flow-robbing angles on them.

But the VH41 got crummy cast ones that are real close to the block. The only benefit is clearance.

I have a set of the VH41 manifolds that I bought to just see the differences.


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