Quote:
Originally Posted by Soko121
hi all, have a 1982 SC that needs an Engine and Gearbox, not quite ready to pull the trigger yet, but wanted to get some more educated input on what to source. I have driven it with the 3.0 liter and would like within reason to get the most hp i can normally aspirated. Will a 3.4 or 3.6L complete assembly ‘drop in’, if not what type of mods are needed, or how much can you bore a 3.0 liter ? Car will be street with occasional track day
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believe it or not all 3.0 through 3.8 engine blocks are exactly the same size and use exactly the same mounts,
they also use the same exhausts and heat, though the bigger the engine the larger the pipes need to be, when spec'ing headers 1/5" IOD are good for 2.7 - 3.0 and less picky 3.2s, most 3.2s will want 1 5/8" OD and most 3.6 up 1 3/4" OD, the heats setups will be the same for all 3.0 to 4.0
The 3.3 and 3.6 use Motronic which needs a notch in the trans bell housing, easily added if not present, the 3.6s need a conversion harness(though Steve Timmons used to an may still sell a direct wire harness
the 3.6 and late 3.2 will need a flywheel compatible w/ 915 225mm clutch
the 3.6 intakes are also larger and can make fitment of engine mounted heater blower and stock air cleaner more difficult
I'd say any engine purchased these days is likely to need at least a top end refurbish, cost to rebuild or refresh will be comparable for any 3.0 -3.6