Quote:
Originally Posted by 71GreenJunk
IN MY OPINION, GM hasn't been managed to build anything halfway decent since about 1987. The 5.7 Hemi and NAG1 was a treat to own and drive while I owned a Challenger R/T. I'm not really a fan of Chrysler or Daimler or Fiat but they did somehow manage to get it right with the NAG1 and gen 3 engines. BTW, my Challenger weighed more than my c/10 does. The car was just ok, engine and transmission were spectacular. In the end, engine packaging (mainly coolant inlet and outlet) and port flow on the stock 5.7 Hemi heads is the deciding factor. 330 cfm could theoretically support 626hp out of the box. A pro charger could do well with that in the future. The only real issue I can foresee is motor mounts. If no one has made adapters, I'll just build my own mounts and take the opportunity to set the engine back and down to help with weight distribution slightly. Of course that means I would need a driveshaft and new lines for the engine coolant and transmission fluid but they would be different regardless of whether it was an LS or Hemi.
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Sorry, I did not mean to come across as aggressively in my post as it probably seemed. I'm just thinking about things like wiring, manual gauges, etc. which will all be a pain to do. If you can find a correct bellhousing it will make things a lot simpler on that side, unless you want to swap the transmission as well, which is too much effort in my opinion. You also need to consider things like the radiator, exhaust pipes and if you have/are planning to add power steering or A/C etc.
I have two old holden UTE shells, and over here the cheapest engine for swap/transplant is the V8 Lexus, so I have done quite a bit of research before deciding it is just not worth it to do an install, because of all the unforeseen costs.
But if you can do the fabrication of the mounts, the exhausts and find a bellhousing / adapter plate, you should be about half way there, and I would love to see the result.