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When I hear the term frankenstein, I think of the LS/VTEC swap. Now that people have swap k20 heads onto k24 blocks thats considered the new frankenstein. Well IMO putting a k20 vtec head on a block that already had a vtec head isn't really considered "FRANKENSTEIN" Its just my opinion.

 
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well i think of head/block combos.... that is not oem spec... like b20 blocks with b16 heads... or any type of b-series variants and a k24block with a k20 head is what i would consider to be a frankenstein... as for putting vtec on a nonvtec block would be an upgrade.... but ive never seen an ls block on a vtec head... altho i dont think it would be considered an ls anymore... but thats just me...

 
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could a b20 with a type r head work with the type r ecu? thatd be interesting

 
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Yeah it would work, although a B16A2 head is just as good and is a lot cheaper.

 
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you have to use the ecu of the cylinder head you are using. so thats the only way it would work you could run a B16A ecu on it if you wanted. but you cant use a GSR ecu for obvious reasons unless its been reprogramed.

 
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Using a B16A2 ECU with a B16A2/B20B setup would work, but it's not ideal. Same with using a Type R or GSR ECU with a B20 setup. The B16A2 has fuel maps and timing set for an entirely different compression ratio, stroke, etc.

You can actually use any ECU with any head/block combo, as long as it hooks up correctly. I've used a D17A2 ECU with a K20A2 motor, and it drove fine. i-VTEC didn't engage, but other than that it worked.

The best scenario for a frankenstein setup is to get a good shop to program and tune the ECU themselves using Hondata or some similar tool.

 
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If you look at Frakenstein's monster it was stitched together from many parts and thus became a new creature. I think thats exactly what a K24 block with a K20A2 head is. Thus the name "Frankenstein" engine applies.