reliable, its only as reliable as you make it when you swap it in... if you do a nice re-seal of all gaskets, and put new spark plugs, fuel injectors, coil packs, belts, water pump etc etc, it will be super reliable.
is it smart to do? after doing a VH swap myself. id say that for the PRICE of doing the swap you wont make as much power as you could if you went with a host of different engines. a iron block chevy V8 is much smaller, and much easier to get parts for, and if done smart, can be cheaper than a VH swap.
after spending close to around 6k for my VH swap, I was very disappointed with the 270whp that it made..
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