V8 swaps are very popular for these cars. However, the information on this site is mostly geared towards cars with original-ish drive trains. Hybrid Z is the place to look. They have compiled a wealth of information on how to stuff almost any powerplant you can think of into these cars. It will take you some time to read through it but I think you'll find the information you are looking for at the following link...
http://forums.hybridz.org/index.php/forum/38-faqs/
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