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M8 Softail Engines / Internal Components

Upgrade Your M8 Softail with High-Performance Engine Components

Unlock the true potential of your Harley Davidson M8 Softail with premium internal engine components from Metalcore Harley Supply. Our collection features powerful big bore kits, performance pistons and cylinders, complete camchest kits, upgraded oil pumps, precision camshafts, heavy-duty valve springs, and reliable lifters - everything you need to build serious Milwaukee Eight performance.

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Whether you're chasing more horsepower, improved reliability, or a complete engine rebuild, we offer trusted parts designed specifically for your M8 Softail.

What Is In This Collection

Camchest kits - complete cam chest packages with the plates, bearings and hardware to install them.
Camshafts - bolt-in and high-lift grinds for the Milwaukee-Eight.
Oil pumps - higher-volume pumps and scavenge upgrades.
Cylinders and pistons - big bore kits, cylinders, pistons and gasket sets.
Lifters and pushrods - hydraulic lifters and adjustable pushrods.
Rocker arms and valve train - rocker arms, valve springs, retainers and supports.

Build a stronger, faster Harley - shop Metalcore Harley Supply today for all your M8 Softail engine upgrade needs.

Reasons to buy from MetalCore Harley Supply: earn rewards points on every purchase, flexible financing with Affirm and Shop Pay, fast free shipping on orders over $89 to the lower 48, international shipping available, earn 100 points and save $20 when you sign up