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    BMW E30 Cylinder Head Parts & Head Bolts

    Cylinder head parts include all of the pieces of the valvetrain, lifters, rocker arms, head studs, and head bolts. We sell the original BMW or OEM head parts as well as performance upgrades such as titanium valve retainers, upgraded springs, and head studs. We also sell valve shim kits which are perfect for DIY E30 M3 S14 and E46 M3 S54 valve adjustments.
    You're currently viewing parts for your (E30) 3-series 1984-1991. Reset your chassis
    For accurate results, specify your year and model below.
    Virtually every top professional BMW engine builder relies on ARP Pro Series head studs. ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Each stud is heat-treated to 200,000 psi, ensuring complete heat penetration. ARP studs are threaded after heat-treat, which gives them 1000% (that's ten times!) better fatigue strength than studs threaded prior to heat-treat. Threading the studs after heat-treating is more difficult and costly (as it's harder on tooling) but the results are well worth the effort. These simply are the best head studs we've found and we highly recommend them in both racing and forced induction applications. Due to the additional clamping force between the head and block, these are IDEAL for turbocharged engines.

    Converting from the factory BMW head bolts to head studs makes it much easier to assemble an engine, especially a racing powerplant which must be serviced frequently (and quickly!), and also ensures proper alignment of the head and gasket. Head studs also provide more accurate and consistent torque loading. Here's why: When you use bolts to secure the head, the fastener is actually being "twisted" while it's being torqued to the proper reading. Accordingly, the bolt is reacting to two different forces simultaneously. A head stud should be installed in a "relaxed" mode -- never crank it in tightly using a jammed nut. If everything is right, the stud should be installed finger tight. Then, when applying torque to the nut, the stud will stretch only on the vertical axis. An information sheet is provided with each set.

    This item fits the following BMWs:
    1970-1976 2002 BMW 1600 2002 2002tii
    1977-1983 E21 BMW 320i
    1984-1985 E30 BMW 318i
    Part #: 201-4601
    Price: $179.23 (USD) 
    Quantity:   
    Virtually every top professional BMW engine builder relies on ARP Pro Series head studs. ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Each stud is heat-treated to 200,000 psi, ensuring complete heat penetration. ARP studs are threaded after heat-treat, which gives them 1000% (that's ten times!) better fatigue strength than studs threaded prior to heat-treat. Threading the studs after heat-treating is more difficult and costly (as it's harder on tooling) but the results are well worth the effort. These simply are the best head studs we've found and we highly recommend them in both racing and forced induction applications. Due to the additional clamping force between the head and block, these are IDEAL for turbocharged engines.

    Converting from the factory BMW head bolts to head studs makes it much easier to assemble an engine, especially a racing powerplant which must be serviced frequently (and quickly!), and also ensures proper alignment of the head and gasket. Head studs also provide more accurate and consistent torque loading. Here's why: When you use bolts to secure the head, the fastener is actually being "twisted" while it's being torqued to the proper reading. Accordingly, the bolt is reacting to two different forces simultaneously. A head stud should be installed in a "relaxed" mode -- never crank it in tightly using a jammed nut. If everything is right, the stud should be installed finger tight. Then, when applying torque to the nut, the stud will stretch only on the vertical axis. An information sheet is provided with each set.

    This item fits the following BMWs:
    1985-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix
    1989-1990 E34 BMW 525i
    Part #: 201-4305
    Price: $247.44 (USD) 
    Quantity:   
    Virtually every top professional BMW engine builder relies on ARP Pro Series head studs. ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Each stud is heat-treated to 200,000 psi, ensuring complete heat penetration. ARP studs are threaded after heat-treat, which gives them 1000% (that's ten times!) better fatigue strength than studs threaded prior to heat-treat. Threading the studs after heat-treating is more difficult and costly (as it's harder on tooling) but the results are well worth the effort. These simply are the best head studs we've found and we highly recommend them in both racing and forced induction applications. Due to the additional clamping force between the head and block, these are IDEAL for turbocharged engines.

    Converting from the factory BMW head bolts to head studs makes it much easier to assemble an engine, especially a racing powerplant which must be serviced frequently (and quickly!), and also ensures proper alignment of the head and gasket. Head studs also provide more accurate and consistent torque loading. Here's why: When you use bolts to secure the head, the fastener is actually being "twisted" while it's being torqued to the proper reading. Accordingly, the bolt is reacting to two different forces simultaneously. A head stud should be installed in a "relaxed" mode -- never crank it in tightly using a jammed nut. If everything is right, the stud should be installed finger tight. Then, when applying torque to the nut, the stud will stretch only on the vertical axis. An information sheet is provided with each set.

    This item fits the following BMWs:
    1987-1991 E30 BMW M3
    Part #: 201-4605
    Price: $131.95 (USD) 
    Quantity:   
    The E30 M3 Head Bolt Set includes 10 head bolts.
    Part #: 11121307135 E30 M3
    Price: $89.50 (USD) 
    Quantity:   
    This head bolt set includes all 14 torx head bolts. These bolts must be replaced every time the cylinder head is removed as they stretch on installation.

    This item fits the following BMWs:
    1984-1991 E30 BMW 325e 325es 325i 325is 325ic 325ix
    1982-1988 E28 BMW 528e
    1989-1990 E34 BMW 525i
    Part #: 11121726478
    Price: $29.95 (USD) 
    Quantity:   
    Replacing a head gasket? The M42 /M44 engine cylinder head bolts stretch when installed and as a result cannot be re-used. Replace you head bolts with this set of 10 head bolts.

    This item fits the following BMWs:
    1990-1991 E30 BMW 318i 318is 318ic
    1992-1998 E36 BMW 318i 318is 318ti 318ic
    1997-1998 Z3 BMW Z3 1.9
    Part #: 11121721939
    Price: $22.00 (USD) 
    Quantity:   
    These head bolt sets for 4 cylinder M10 engines includes 10 bolts, the set for 6 cylinder M30 engines includes 14 bolts.

    This item fits the following BMWs:
    1970-1976 2002 BMW 1600 2002 2002tii
    1977-1983 E21 BMW 320i
    1984-1991 E30 BMW 318i
    1976-1981 E12 BMW 528i 530i
    1982-1988 E28 BMW 533i 535i 535is
    1989-1995 E34 BMW 535i
    1982-1989 E24 BMW 633csi 635csi
    1981-1987 E23 BMW 733i 735i
    Part #: 11120621144
    Price: $29.50 (USD) 
    If there is one weak point to the internals of the M20 engine, it's the camshaft rocker arms. They're actually designed to be the weak link to prevent more extensive damage elsewhere in the valvetrain. The rocker arm actuates the valves as the cam lobe makes contact. But sustained running at high RPM will cause the valves to 'float' or stay open which can lead to contact between the piston and the valves. If this happens too often, it will fatigue and snap the rocker arm. Therefore, any track driven E30 should have the rockers inspected or replaced often, along with a correct valve adjustment. And any high mileage M20 engine is running the risk of failure because of fatigue and weak valve springs. It's also a good idea to use new rocker arms any time a new cam is installed as the cam and the rocker wear together.

    Replacement of the rocker arms can be done with the cylinder head in the car but more often, the head is removed. This makes removing the rocker shafts easier. Either way, a new cylinder head gasket set is recommended as it includes all of the gaskets and plugs that you would need. If the head stays on the car, the radiator may need to be removed to allow more access for the shafts to come out. Replacing the engine timing belt is not done at the same time and should be treated as a separate job.

    These Febi M20 rocker arms are sold per rocker (order 12 for a complete set). You may also want to replace the eccentric adjusters as it's easy to do and worn eccentrics may prevent you from properly adjusting the valves afterward.

    This item fits the following BMWs:
    1984-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix
    1989-1990 E34 BMW 525i
    Part #: 11331271429
    Price: $19.95 (USD) 
    Replace your worn rocker arm with this unit. The rocker arms make contact with the camshaft and control the movement of the valves. Any time a camshaft is replace it is always a good idea to replace the rocker arms with new units. It is also a good idea to replace the rocker shafts that the arms mount on.

    This item fits the following BMWs:
    1970-1976 2002 BMW 1600 2002 2002tii
    1984-1985 E30 BMW 318i
    1976-1981 E12 BMW 528i 530i
    1982-1988 E28 BMW 533i 535i 535is
    1989-1993 E34 BMW 535i
    1982-1989 E24 BMW 633csi 635csi
    1981-1987 E23 BMW 733i 735i
    1988-1992 E32 BMW 735i 735il
    Part #: 11331271833
    Price: $14.95 (USD) 
    Quantity: