I bought a PI motor with almost no miles on it for $700; $400 for a head is ridiculous unless you're sh*tting money.
The most simple swap is a head swap.
It's not easy, and you really need to watch the cam/crank lineup, but it's easy.
You CAN do this with only a crank balancer puller, and a steering puller.
See Brandon's thread; he made it look easy.
The full engine is a little harder; you remove everything on the outside of your current engine, and bolt it onto another engine.
This takes the same special tools, along with a cherry picker. And you probably want to swap the plastic tensioner parts, new bolts, gaskets...
A stock set of PI heads off a crown vic or Gran Marquis can be had fairly cheaply; Or you can buy Awesome heads from MHS, if you want to have something better.
It's the same swap, either way.
The lower end will probably be fine, as long as the oil's been changed regularly.
Red '96 Cougar XR-7 240k mi. '02 4R70W, PST DS : '03 PI engine, 04 maf, 24lb injectors, 2.5" exhaust, '02 4r70w + Jmod, DirtyD0g TC + cooler + 3/8" lines, 255 walbro fp. Alpine system.
Black '96 Cougar XR-7 (Lazarus) 210k mi PI Intake, '02 4R70W, Jmod, PST DS, GrogTune, Konis, Mark LCA+Poly, racecougar Custom Engine Chain, and JL and racecougar Bracing.
Black '97 Tbird Limited Edition, '02 4R70W, 255 walbro, PST DS, PBR Brakes&SS lines, Toicko Blues & Springs, GrogTune.
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