M R Posted February 4, 2023 Share Posted February 4, 2023 I know this is a long shot and I mean long. But I gotta 454 with a th400 in a trade for cheap while I was getting ready for an ls swap but what are the chance someone else has put a 454 into a manche Link to comment Share on other sites More sharing options...
ghetdjc320 Posted February 5, 2023 Share Posted February 5, 2023 Haven’t seen an MJ with a bbc but you may find someone in the XJ forums who has Link to comment Share on other sites More sharing options...
Eagle Posted February 5, 2023 Share Posted February 5, 2023 A SBC is a tight fit. Good luck with a big block. Link to comment Share on other sites More sharing options...
Pete M Posted February 5, 2023 Share Posted February 5, 2023 If I had the choice between the 2, I'd prefer an LS for all the modernity it brings. Link to comment Share on other sites More sharing options...
pizzaman09 Posted February 5, 2023 Share Posted February 5, 2023 454 is also a heavy engine, possibly more than the 4.0L six. I'd rather a much lighter LS as well if going the Chevy route. Could you make it work, likely, it would fill the engine bay. Link to comment Share on other sites More sharing options...
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