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BMW Internal Engine Parts for BMW Z3 (1996-2002)

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Rebuilding your engine or giving your cylinder head an overhaul? Internal engine components covers parts that are located within the engine block and cylinder head. Examples include: timing chains and tensioners, rocker arms, rod bolts and studs, head bolts, valve springs, connecting rods, and more. These are Genuine BMW engine parts, performance upgrades, or approved aftermarket brands that have a long track record of reliability and quality.

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Ferrea Performance Intake Valve - Stock Size

T#:583445

Part#: F1550P

Back Ordered

$ 34.99 USD

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$ 34.99 USD

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Ferrea Performance Exhaust Valve - Stock Size

T#:583444

Part#: F1552P

Ships on Oct 27, 2026

$ 34.99 USD

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$ 34.99 USD

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Cat Cams Upraded Camshafts - 268/268 - 230/230 - 10.45mm/10.45mm - 1....

For non-TU M52B28 (Single VANOS)

T#:28271168

Part#: 1304214

Ships on Nov 20, 2026

$ 1,524.99 USD

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$ 1,524.99 USD

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Cat Cams Camshaft Set - 288/280 12.75mm/12.50mm Lift - E46 M3 With R...

T#:4414885

Part#: 1301805KIT

Special Order: No Guaranteed ETA

$ 4,372.99 USD

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$ 4,372.99 USD

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Made in Belgium, Cat Cams offer great performance at a reasonable price. Cat Cam offers cams in most popular enthusiast upgrade specs to ensure there is a option for what ever your power goal is. The included rocker arm kit consist of: - 24x "CAT031" rocker arm, steel billet, coated - 1x oil connector bridge - rocker arms with 0.5mm oil jet hole towards the cam/follower contact area - rocker arm shafts need to be drilled at each rocker arm (in the groove already present) - rocker arm shafts need to be drilled at oil bridge connector (no need to make extra groove, connector has internal groove) - intake rocker arm shaft needs front plug to close - intake rocker arm shaft has no oil feed so an oil bridge is required to connect the intake/exhaust rocker arm shafts *Please note that the factory cams ave a pressure regulator valve that needs to be removed and installed in the new cams*

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Cat Cams M52B28 Hot Street Camshaft Set

T#:5858417

Part#: 1304213

Special Order: No Guaranteed ETA

$ 1,524.99 USD

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$ 1,524.99 USD

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Upgrade your M52B28 Engine with Cat Cams, a leader in the performance-aftermarket camshaft industry. These Camshafts will increase airflow into the engine by increasing the overall lift and duration over the factory cams. With their Sport cam setup, you can run all factory valvetrain, with no valve spring upgrades necessary! The VANOS (VVT) system on the intake camshaft changes the valve timing: M52 /B28: from 115° to 90° (exhaust: 105° fix) The data are shown for full intake retard (disengaged VVT). Check the distance between valves and piston to be 1mm at least with VVT engaged. Wrong installation will cause severe engine damage! Duration Intake @ .1mm: 257° Exhaust @ .1mm: 257° Intake @ 1mm: 220° Exhaust @ 1mm: 220° Lift Intake: 10.15mm Exhaust: 10.15mm Lobe Angle Intake: 110° Exhaust: 105°

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Cat cams Sport camshaft set 263/256 11.00mm/10.50mm - Z3 1.9 E36 318i...

T#:578599

Part#: 1301712

Special Order: No Guaranteed ETA

$ 1,170.00 USD

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$ 1,170.00 USD

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Made in Belgium, Cat Cams offer great performance at a reasonable price. Cat Cam offers cams in most popular enthusiast upgrade specs to ensure there is a option for what ever your power goal is.

Cat Cams M52B28 Sport Camshaft Set

T#:25805790

Part#: 1304212

Special Order: No Guaranteed ETA

$ 1,524.99 USD

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$ 1,524.99 USD

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Upgrade your M52B28 Engine with Cat Cams, a leader in the performance-aftermarket camshaft industry. These Camshafts will increase airflow into the engine by increasing the overall lift and duration over the factory cams. With their Sport cam setup, you can run all factory valvetrain, with no valve spring upgrades necessary! The VANOS (VVT) system on the intake camshaft changes the valve timing: M52 /B28: from 115° to 90° (exhaust: 105° fix) The data are shown for full intake retard (disengaged VVT). Check the distance between valves and piston to be 1mm at least with VVT engaged. Wrong installation will cause severe engine damage! Duration Intake @ .1mm: 250° Exhaust @ .1mm: 250° Intake @ 1mm: 213° Exhaust @ 1mm: 213° Lift Intake: 9.55mm Exhaust: 9.55mm Lobe Angle Intake: 110° Exhaust: 105°

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Cat Cams M52B28 Sport Camshaft Set

T#:25805789

Part#: 1304211

Special Order: No Guaranteed ETA

$ 1,524.99 USD

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Qty

$ 1,524.99 USD

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Upgrade your M52B28 Engine with Cat Cams, a leader in the performance-aftermarket camshaft industry. These Camshafts will increase airflow into the engine by increasing the overall lift and duration over the factory cams. With their Sport cam setup, you can run all factory valvetrain, with no valve spring upgrades necessary! The VANOS (VVT) system on the intake camshaft changes the valve timing: M52 /B28: from 115° to 90° (exhaust: 105° fix) The data are shown for full intake retard (disengaged VVT). Check the distance between valves and piston to be 1mm at least with VVT engaged. Wrong installation will cause severe engine damage! Duration Intake @ .1mm: 240° Exhaust @ .1mm: 240° Intake @ 1mm: 203° Exhaust @ 1mm: 203° Lift Intake: 9.25mm Exhaust: 9.25mm Lobe Angle Intake: 110° Exhaust: 105°

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Sport camshaft set 255/248 10.50mm/10.00mm - Z3 1.9 E36 318i ...

T#:578598

Part#: 1301711

Special Order: No Guaranteed ETA

$ 1,170.00 USD

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$ 1,170.00 USD

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Made in Belgium, Cat Cams offer great performance at a reasonable price. Cat Cam offers cams in most popular enthusiast upgrade specs to ensure there is a option for what ever your power goal is.

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