Swap 4-speed automatic for 3-speed?
#16
Rennlist Member
Thanks. Any idea on the price tag to "improve" it? My plan is to pick up a late model 4 speed and get it ready before dropping the 3 speed. Didn't know about the torque tube, but it makes sense. Is there any difference in the wiring harness? I understand that the kickdown cable from the throttle has to be modified and I imagine that the cooling lines need to be shortened. Any comments on LSD vs Non LSD. Again, it's not going to be a 1/4 miler. Thanks again.
Get plenty off opinions on this- estimates will vary quite a bit.
You might also consider that Greg Brown has [had?] some new transmissions available if I remember correctly [??]- no idea what they cost but just remember what it costs to put right a blown transaxle so make sure you know what you are buying in so much as you can.
Rgds
Fred
#17
Administrator - "Tyson"
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#18
Rennlist Member
Usually it involves using a set of LS7 heads on a LS3 block along with an aggressive cam, stroker crank, forged internals, a aftermarket aluminum intake, and raising the compression a lot for NA.
Otherwise it is all of the above without jacking up the compression and adding turbos or a supercharger to do it safely and reliably.
Most 928 internals are already forged and good for up to 700 Hp, or at least the crank was last I knew.
Otherwise it is all of the above without jacking up the compression and adding turbos or a supercharger to do it safely and reliably.
Most 928 internals are already forged and good for up to 700 Hp, or at least the crank was last I knew.