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| Engine Tech Technical discussion related to all relevant engines such as KA, SR, RB, CA, 2JZ , L24/26/28, VG, VQ, and LSx series. |
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02-22-2017, 09:03 PM
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#1 |
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Zilvia Junkie
 
Join Date: Aug 2008
Location: Chicago
Age: 42
Posts: 433
Trader Rating: (5)
 Feedback Score: 5 reviews
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Can I just swap crankshafts?
So I have a balanced and polished 91mm crankshaft sitting around.
Is it possible to just swap the 91mm shaft in for my stock 86mm? I have a built SR with rods pistons bearings and ArP hardware. I want to swap in the 91mm shaft and make it a stroker motor. Is it as simple as just installing the new shaft? I've never dug into the bottom end before but it something I would like to learn as well. |
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02-23-2017, 07:14 AM
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#2 |
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Zilvia FREAK!
 
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If you add 5mm of stroke with a standard size rod and piston what do you think happens?
The answer is no, you'll need custom pistons designed for a 91mm stroke because they're shorter. |
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