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S60R built motor??

955 Views 11 Replies 7 Participants Last post by  CKAVolvo
after months of research I’ve narrowed it down to three options 1) buying a 4t3/9 and swapping the r oil pan and head and calling it a day 2) the same as option 1 but swapping in the crank and rods from the 4t4 for the 93.5 mm stroke 3) or throwing k1 forged conrods wiesco forged pistons and the 4t4 crank for a built 4t3/9 with the better 93.5 mm stroke. If you guys could let me know what ballpark hp/tq numbers i could make reliably with each setup that would also be great
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I think that with any of those options you can get to 500whp with stock intake/exhaust manifolds. I would go the forged rods and pistons route personally just for added insurance.

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Doesn't re-volvo sell an R exhaust manifold with a T3 flange? And also doesn't Milletech make high-performance
intake and exhaust manifolds?

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I'm sure they do, my point is that for 500whp you don't need an equal length exhaust manifold. That level of power can be reached with a stock manifold or a Japanifold. It may definitely require modification if the flange depending on your turbo. Mine are vband flanges welded to the manifold flange.

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