We Stuffed a 7.3L “Godzilla” Into a ’65 Mustang… Will It Fit?!

What happens when you drop Ford’s massive 7.3L “Godzilla” V8 into a classic Mustang? This modern pushrod monster delivers everything we love about old-school Detroit—445 cubic inches, forged internals, aluminum heads, and 600+ HP potential with just a cam swap. But there’s one big question… 👉 Will it actually fit in a vintage Mustang engine bay? This time in the shop at Hemmings, presented by POR-15, we take on the ultimate Blue Oval swap—installing Ford’s 7.3L Godzilla into a 1965 Mustang and backing it with a Toploader 4-speed. From fitment challenges to real-world swap insights, we break down what it takes to make this big-inch truck engine work in a classic muscle car. 🔧 What You’ll Learn: • Can a 7.3L Godzilla fit in a classic Mustang? • Why this engine is a serious LS alternative • Real swap challenges + clearance issues • Power potential and upgrade path • What it takes to make it all work 🏁 Why This Swap Matters The Godzilla is quickly becoming Ford’s answer to the LS swap, offering big displacement, simplicity, and huge power potential. But is it actually the better choice? 💬 Join the Debate: Godzilla or LS — what would YOU run? Drop your take in the comments 👇 🔔 Don’t Miss More Builds: 👍 Like the video 🔔 Subscribe for more engine swaps, builds, and deep dives 📲 Follow for behind-the-scenes content 🔗 Useful Links: • Instagram: https://instagram.com/hemmings • Previous Episode: https://youtu.be/uqblFfgngjs ford godzilla 7.3, godzilla engine swap, ford 7.3 swap mustang, godzilla vs ls, ls swap alternative, ford godzilla horsepower, 7.3 godzilla build, mustang engine swap