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I am looking for some ITB's for my L3.096 Stroker. What looks to be available on the market at the moment is. JENVEY https://store.jenvey.co.uk/throttle-body-kits/nissan/nissan-datsun-cknn03-1 EFI HARDWARE https://www.efihardware.com/products/2005/Nissan-L-series-6-cyl-pro-series-tapered-bore-kit-with-high-performance-Japanese-manifold-45mm OER http://www.otomoto.com.au/p/7830659/oer-itb-kit-for-l6.html Has anyone had any experience with these?

I am chasing a little info on the Kaemari/Harada manifold verses Jenvey Manifolds. Currently building a L28 F54 Stroker (88.5mm bore and 83mm V07 Crank). I have a 39mm port size on the N42 head and I am going to use the Tapered 52/50/48 ITB's from EFI Hardware with a Haltech Elite 750 (unconfirmed). Most likely when I get the Inlet Manifold I will finish off the port size to match them for even flow.. The inlet manifold and head will get flow tested to ensure even CFM per cylinder. A custom tuned length set of Headers will be built by a good friend who is a race engineer. This engine should conservatively put around 220 to 230 RWH as I am keeping it relatively mild ie its not one of LCR's Ferrari Engines. Kaemari/Harada manifolds come in both small port and big port versions. The Jenvey Manifolds have a large port, 50mm at the Inlet and 40mm at the head. Does anyone know what the port sizes of both versions of the Kaemari/Harada are? I Haven't seen one in the flesh as yet to measure them. I can buy the Jenvey direct for the UK but they are not cheap at around $750+ plus shipping and they are a big investment. I think the Kamera/Harada are a little cheaper, what is the best way to obtain them and how much? Any help from the L series boffins will be appreciated.

Couple of straight ( run up on a lathe to check runout) 79 mm stroke L28 crankshafts. Good base for offset grinding for bigger stroke, knfe edging etc. $50 each Can package and freight.