I did the 5.0 swap in mine and it was on a decent budget since i had most of the parts..but that LS motor would be freakin ridiculous in power ..it was a hand full with 300 poniesThe current thinking on V8 miatas is the Corvette engine instead of the Ford engine. More power out of the box and better weight balance due to the lighter all aluminum Corvette engine. Multiple kits available to put the Corvette engine in. I have driven both and they are a rush.