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A 4.7L 2UZ NA Engine Swap into a MKIV NA.


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Hi guys,

 

Here's a few pics of a 2uzfe motor we're building for a UK member. This UK member is asking for a high compression NA that revs high, and make strong Tq down low. Perfect for the English countryside.

 

By the time we're done with it, we arrive at 4.9L total displacement with a responsive 11:1 compression ratio. Perfect for a great HP NA, even great for a hefty shot of nitrous.

 

On with the pics:

 

Core block and heads:

 

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Various motor components going in.

 

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The block is part way through being bored now, and next will be shotpeened. After that the honing begins. More pics to come!!

 

Eric

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Any idea of time scales?

Is this cost effective relative to the stroker kit/single turbo route?

 

With this build being more straight forward than the other builds we've done, we expect this motor to be completed VERY fast. We may have it in the hands of the owner by the end of August, it can go that quickly. We've got the intake manifold in progress now, and it's going to be indentical to mine.

 

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Also not pictured but present is the clutch. It's an twin ceramic/metalic clutch that weighs only 19lbs. It holds ~800ft/lbs.

 

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This route is indeed cost effect compared to a stroker/single route. Maybe even a little less in cost depending how the motor is built. A motor looking to make ~800Hp/Tq with instant boost WITH turbo kit ballparks at around 11-12K GBP. A high HP NA may run 8-9kGBP.

 

That's with clutch, intake mani, adapter, and an assembled motor in a pallet ready to drop in.

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Nice one Eric. What sort of performance is it going to be comparable with, LS2? When you say high revving, how high? Subscribed :D

 

Well, the LS2 does have a bit more displacement, but one this motor we're looking for ~425rwhp. This build while a higher compression is a has a milder more streetable cam. That means the torque will come on sooner and be a joy to drive around the countryside. I've lived in Leeds, and had to drive everyday through the countryside to Menwith Hill, and those roads would be perfect for a responsive, torquey V8.

 

With our standard valve springs, we recommend running up to 8500 for safely staving off valve float. A lot of it depends on the cams though. If the cams are a milder set, there's no need to rev it higher after the tq curve drops off. On a hotter set of cams with massive lift we can order a set of dual valve springs with a heavier seat and nose pressure. I don't want to throw around the 10K rpm number, but I'll say that 9500 range is within reason. Make sure that the rod bolts are custom age 625 though :)

 

Thanks !

 

Eric

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