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vq30 and vq35 headers are the same size?

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Old 05-17-2017, 08:36 AM   #1
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vq30 and vq35 headers are the same size?

vq30 and vq35 headers are the same size?
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Old 05-17-2017, 10:00 PM   #2
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I don't think the o2 sensor bungs are positioned correct. And you would probably have to remove some of the cross member.
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Old Yesterday, 05:01 AM   #3
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why couldn't i just weld in a new bung? i'm looking at putting vq35 heads on a vq30 my concern is the exhaust ports are different sizes.
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Old Yesterday, 06:45 PM   #4
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Quote:
Originally Posted by cdoublejj View Post
why couldn't i just weld in a new bung? i'm looking at putting vq35 heads on a vq30 my concern is the exhaust ports are different sizes.

I have a '99 Maxima header set that I've had for, I dunno, 7-9 years, and the exhaust port sizes and shapes are the same for VQ30, VQ35, 350Z, 350Z Cosworth, and 2012 FX35 HR heads, because I have all those heads..(well, the HR heads are pending completion of the BC 3.8 stroker engine but exhaust ports are the same).. They all use the same exhaust stud general pattern, with maybe the studs moved around on a few ports.

The original 99 headers needed the EGR port welded up because no EGR for me, and I've had the two sides joined with tapered piped merging with a Warpspeed 3" flex/B-pipe/resonator/tailpipe w/3" Flowmaster 50 SUV muffler. 3" cutout, PLX A/F bung, probably other things, but all exhaust head ports are identical.

???
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