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Discussion Starter #1 (Edited)
I've got a B18B1 with PR3 .5 oversized pistons, should be around 11.5:1 C/R. Planning on swapping in a P30 head later down the road. its a daily driver but I only drive it to and from work ~15mi round trip. no fwys involved. I'm picking up a y21 tomorrow but everyone seems to make a point of how short the gears are. It's really easy and cheap to swap in LS 5th gears and a 4.266 final drive, worth it? or am I better off with the quicker acceleration?
 

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Brokedick Millionaire
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40,433 Posts
FD swap not worth it, only 3% change.

5th swap will require checking the shim clearance on the mainshaft.
 
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