BMW Internal Engine Parts for BMW 3 Series E30 (1984-1991)

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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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King Performance BMW S54 Main Bearings - Std.
King Performance BMW S54 Main Bearings - Std.
King - Corporate Logo
T#:25706115
Part#: MB7039AM
In Stock
$ 169.99 USD
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$ 169.99 USD
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Performance Rod Bearing Set - Standard Size
Performance Rod Bearing Set - Standard Size
King - Corporate Logo
T#:4840520
Part#: CR6640XP
In Stock at Vendor
$ 163.99

This product was last offered at the strikethrough price on
05-22-2026

$ 148.99 USD
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$ 148.99 USD
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These King Performance Series bearings are recommended for performance applications. These bearings are designed for aftermarket gasoline or diesel engine rebuilding and performance engines with OE or upgraded crankshafts. These King Performance Series bearings have an improved crankshaft finish for reducing microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts. The bearings feature improved oil clearance to reduce wear and increase engine life, which in turn reduces operating noise, vibration, and excess oil flow.
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Cat Cams Sport Camshaft set 269/269 10.00mm - E30 318i E36 318i
Cat Cams Sport Camshaft set 269/269 10.00mm - E30 318i E36 318i ...
Cat Cams - Corporate Logo
T#:578594
Part#: 1301413
In Stock
$ 1,051.99 USD
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$ 1,051.99 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.
King Performance BMW S54 Main Bearings - .25 Oversize
King Performance BMW S54 Main Bearings - .25 Oversize
King - Corporate Logo
T#:25706120
Part#: MB7039AM0.25
Ships in 6 Business Days
$ 178.99 USD
Free Shipping on orders $49 and up
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$ 178.99 USD
Free Shipping on orders $49 and up
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Replace your worn out OE main bearings with King's .25 Oversize Performance S54 Main Bearing Set!
Cat Cams Sport Camshaft set 257/257 9.90mm/9.90mm - E30 318i E36 318i
Cat Cams Sport Camshaft set 257/257 9.90mm/9.90mm - E30 318i E36 318i...
Cat Cams - Corporate Logo
T#:578593
Part#: 1301411
Special Order: No Guaranteed ETA
$ 1,051.99 USD
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$ 1,051.99 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.
Cat cams Sport Camshaft set - 279/275 11.45mm/10.95mm lift - E30 M3
Cat cams Sport Camshaft set - 279/275 11.45mm/10.95mm lift - E30 M3 ...
Cat Cams - Corporate Logo
T#:578578
Part#: 1300657
Special Order: No Guaranteed ETA
$ 933.99 USD
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$ 933.99 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.
KING Performance Rod Bearings - M40/M42/M43/M44
KING Performance Rod Bearings - M40/M42/M43/M44
King - Corporate Logo
T#:4538204
Part#: CR4042XP
In Stock at Vendor
$ 98.99 USD
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$ 98.99 USD
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King Racing’s XP series features pMax Black™, a unique tri-metal structure that is 24% harder than any other conventional tri-metal race bearing. pMax Black™ together with the XP geometric features are the ideal combination for performance racing.
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King Performance Rod Bearing Set - Standard Size
King Performance Rod Bearing Set - Standard Size
King - Corporate Logo
T#:2393424
Part#: CR4596XP
Ships in 6 Business Days
$ 190.00 USD
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$ 190.00 USD
Free Shipping on orders $49 and up
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