BMW Internal Engine Parts for BMW E30 M3 S14 2.3L

Genuine BMW Bearing Shell - E34, E28, E30, E24

T#:393128

Part#: 11241310515

Ships in 1-2 days

1% off MSRP $ 73.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 72.99 USD

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1% off MSRP

$ 73.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 72.99 USD

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Replacement Piston Ring Set For Turner Motorsport/Wiseco E30 M3 2.5-l...

T#:26538305

Part#: 9400XX

In Stock

$ 31.99

This product was last offered at the strikethrough price on
05-03-2026

$ 30.99 USD

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$ 31.99

This product was last offered at the strikethrough price on
05-03-2026

$ 30.99 USD

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BMW S14 Engine ARP Head Stud Kit - E30 M3

T#:189786

Part#: 201-4605

In Stock at Vendor

$ 160.99 USD

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$ 160.99 USD

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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.

ARP is a company that prides itself on performance and durability, no matter the application. Offering the finest engine hardware money can buy is the driving initiative at ARP and this is evidenced by the staggering amount of satisfied customers and race teams the world over.

This item fits the following BMWs:
1987-1991 E30 BMW M3

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E30 M3 2.5L Turner/Wiseco 11.25:1 Piston Set

T#:339073

Part#: WISECO2.5

Ships on Oct 9, 2026

Starting at $ 699.80 USD

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Starting at $ 699.80 USD

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The TMS/Wiseco 11.25:1 piston set was designed for use with the Evo3 2.5 liter crank and 2.3 connectig rods. The pistons are 95mm bore. Each set comes with rings, wrist pins and clips. Now also available in a +.25mm Overbore!

For seventy five years, Wiseco has been the piston of choice when it’s time to replace engine internals. To this day Wisco is one of the sole manufacturers of forged pistons within the United States and continues develop new and exciting products everyday.

Piston Specs:
Comp Height = 1.200
Bore Size = 3.7400 (as measured on piston skirt, 1.3" below oil ring)
Suggested Clearance = .0040
Weight = 388-389g (varies piston to piston)
Valve Pocket Dia. = 1.60 (i) / 1.40 (e)
Valve Pocket Angle = 18 (i) / 19.50 (e)
Depth from TE = -.1050 (i) / -.1350 (e)

This item fits the following BMWs:
1987-1991 E30 BMW M3 with Turner 2.5 Kit

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ARP Main Stud Kit for E30 M3 S14 Engine

T#:2207

Part#: 201-5001

In Stock

$ 119.99 USD

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$ 119.99 USD

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This ARP main stud set for the E30 M3 eliminates main cap walk and fretting, as well as protects the threads in your engine block. Each S14 main stud is made using the best materials, process, design and engineering, which exceeds even the most stringent racing and aerospace specifications. This main stud kit includes hardened parallel-ground washers and aerospace quality nuts.

The studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 190,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 1000% stronger than others. On the E30 M3, there's no reason to settle for anything less than the best, which is why we carry and use ARP fasteners and studs on our own BMW race cars.

ARP is a company that prides itself on performance and durability, no matter the application. Offering the finest engine hardware money can buy is the driving initiative at ARP and this is evidenced by the staggering amount of satisfied customers and race teams the world over.

This ARP main stud kit fits the following BMWs:
1988-1991 E30 M3 - S14 engine
1984-1985 E30 318i (M10)

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ARP Connecting Rod Bolt Kit for E30 M3 2.3 liter

T#:2187

Part#: 201-6104

In Stock at Vendor

$ 175.99 USD

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$ 175.99 USD

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Set of 8 Pro-Series connecting rod bolts, made by ARP -- the world leader in fastener technology. ARP Pro Series connecting rod bolts are precision CNC-machined to exacting specifications and designed for optimum reliability. Heat-treated with threads which are rolled to provide up to ten times more fatigue strength, these rod bolts are far superior to standard OEM BMW fasteners in terms of durability and ability to withstand stresses. This rod bolt set is specifically for the E30 M3 S14 2.3 liter engine.

Each bolt is made of ARP2000 material, which exceeds the strength of 8740 Chrome Moly, and is able to achieve clamp load at 220,000psi. ARP2000 fasteners are used widely in motorsport and drag racing as an upgrade from 8740 Chrome Moly in both steel and aluminum rods. These are simply the best connecting rod bolts available, making them ideal for ultra high performance, racing and forced induction applications.

ARP is a company that prides itself on performance and durability, no matter the application. Offering the finest engine hardware money can buy is the driving initiative at ARP and this is evidenced by the staggering amount of satisfied customers and race teams the world over.

These ARP connecting rod bolts fit the following BMWs:
1988-1991 E30 M3 - S14 4 cylinder

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Main Bearing Set - Standard Size - E30 M3 2.3 liter

T#:3166

Part#: 11210666110

Ships in 4 Business Days

$ 99.99 USD

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$ 99.99 USD

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This E30 M3 Main bearing set is in standard size for the 2.3 liter S14 engine. This main bearing kit includes the thrust bearings.

This item fits the following BMWs:
1988-1991 E30 BMW M3

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E30 M3 Rod Bolt Set

T#:284

Part#: 11241307140KIT

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$ 159.92 USD

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$ 159.92 USD

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The E30 M3 Rod Bolt Set includes 8 bolts.

E30 M3 Head Bolt Set

T#:283

Part#: TMS283

Ships in 1-2 days

$ 259.99 USD

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$ 259.99 USD

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The E30 M3 Head Bolt Set includes 10 head bolts.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

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CP-CARRILLO Connecting Rod Set - CARR Rod Bolts - BMW E30 M3 S14 ...

T#:10128444

Part#: CAR-CRS-S14-CARR

Ships on Sep 16, 2026

$ 1,439.99

This product was last offered at the strikethrough price on
08-12-2026

$ 1,349.99 USD

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$ 1,349.99 USD

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Carrillo connecting rods are well known within pro racing and street performance circles for good reason; they produce a premium product that winning racers around the world depend on. Quality and pride go hand-in-hand at Carrillo Industries. Manufacturing a Carrillo rod is much more than cutting and forging, meeting production goals and shipping deadlines. Every Carrillo rod is made with the goal of winning in mind and the Carrillo rods are a proven performers in both street and racing S14 engines. Carillo's fasteners and "Carrilloy" rods has proven popular with all racers who want the best. Special Chrome-Moly based alloy Forged Rods Lightweight Design for low mass Vs. Stock Strong and proven in racing Excellent quality control Tight tolerances and balancing Includes High Quality Non-stretch CARR Rod Bolts Tech Notes: WMC Bolts are the standard hardware included and are an excellent fastener. For extreme output applications and all-out racing, the CARR bolt option holds maximum RPMs and HP levels.

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Wiseco Forged Piston & Ring Set - E30 M3 2.3 Liter - 3.720 Inch Bore ...

T#:387797

Part#: TEN300623SKT

Ships on Oct 12, 2026

$ 699.00 USD

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$ 699.00 USD

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Wiseco BMW E30 M3 Piston set - 3.720" bore. Wiseco leads the performance aftermarket by producing the highest quality forged pistons. Extreme racing conditions demand the strength and toughness that only forged pistons can offer. Compared to cast pistons, forgings are tougher and more durable and will stand up to the abuse that high-performance motorsport applications require. Each set comes with rings, wrist pins, and clips. Born over 80 years ago from the passion for racing, Wiseco is a world leader in manufacturing high-performance, forged pistons for the motorcycle, automotive, ATV, snowmobile, personal watercraft, and outboard marine markets. The Wiseco crew shares the same level of dedication to motorsports as their customers and are focused on continually refining the quality and practices it takes to exceed expectations. Engineered, forged, and machined on cutting-edge equipment in the U.S. at Wiseco’s Mentor, Ohio manufacturing facility, Wiseco pistons are the undisputed leader in quality and performance. Wiseco Performance Products, built for racers, by racers. Bore Diameter - 94.50 Compression Height - 32.00 Forging Type - Full Round Oil Ring Thickness2.8 Piston Material - 2618 Piston Pin Included - Yes Piston Pin Material - 9310 Piston Volume - -32.00 Product Series - European Product Types - Piston Kits Ringset Included - Yes Second Compression Ring Thickness - 1.2 Skirt Coating - Y Top Compression Ring Thickness - 1.0 Wrist Pin Diameter - 0.866 Wrist Pin Style - Floating This item fits the following BMWs: 1988-1991 E30 BMW M3 2.3 liter

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Cat cams Sport Camshaft set - 279/275 11.45mm/10.95mm lift - E30 M3 ...

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.

CP Carrillo Forged Piston Set - 94mm Bore, 11:1 Compression Ratio - E...

T#:637130

Part#: CP-FPS-S14-2.3A

Special Order: No Guaranteed ETA

$ 899.99 USD

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$ 899.99 USD

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Pistons are the backbone of any true hardcore racing engine and that’s where CP-Carrillo excels. Our Engineering department started off analyzing the competition, gathering industry data and deciding to make the highest level of pistons, period. The heart and soul of our pistons are built through our Engineering Department and its resources. This department is made up of several factors that push them ahead of the competition; Reverse Engineering, Design Experience and Flexibility, Analysis and R&D. As in racing, it takes a lot to be number one; here at CP-Carrillo we have it all and are number one in piston design, enabling our customers to come in first on race day.

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BMW S14 4 Cyl. 284-Degree - Camshaft

T#:431

Part#: TMS431

Special Order: No Guaranteed ETA

$ 1,503.99 USD

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$ 1,503.99 USD

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Schrick has been dedicated to engine performance through the development of only the highest-quality camshafts for more than 40 years. They've created a bond with BMW enthusiasts nearly the entire time, offering options for both the street and track using top materials for strength and accuracy. Schrick has grown into a technology center offering one of the most advanced locations for engine testing and manufacturing. These are the same cams used by many high-end German tuners who are achieving sizeable gains with the S14 engine. For the power-hungry, these cams are a great way to achieve a linear increase in horsepower from mid-range, up to redline. Duration Intake - 284 Duration Intake @ 1mm - 253 Duration Exhaust - 284 Duration Exhaust @ 1mm - 253 Intake Peak Timing - 106 Exhaust Peak Timing - 106 Cam Lobe Lift Intake - 11, 5 Cam Lobe Lift Exhaust - 11, 5 Valve Lift w/o Valve Clearance Intake - 11, 5 Valve Lift w/o Valve Clearance Exhaust - 11, 5 Valve Clearance Intake - 0, 25 Valve Clearance Exhaust - 0,3

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Schrick Camshaft - E30 M3 276 degree

T#:203

Part#: TMS203

Special Order: No Guaranteed ETA

$ 1,503.99 USD

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$ 1,503.99 USD

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276-deg Performance Camshaft. This is the next step above the Evo 2/3 cams that we also sell and will produce greater top-end power with only slight loss in torque. This cam can be used on the intake side with a stock exhaust cam OR it can be used on the exhaust side with the 284-deg Schrick cam as the intake.

BMW Schrick Technical Specs

Schrick Technical Information / Specs br>
This item fits the following BMWs:
1988-1991 E30 BMW M3 - S14 engine

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Schrick Camshaft Set - E30 M3 284/276 degree

T#:3566

Part#: E30M3SCHRICK

Ships on Dec 17, 2026

$ 3,007.27 USD

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$ 3,007.27 USD

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Boost your mid to top end power on your S14 engine with these aggressive Schrick cams! These are the next step above the Evo 2/3 cams that we also sell and will produce greater top-end power with only slight loss in torque. The intake cam is 284 degree (stock is 246) with 11.5mm lift (stock is 10.7) and the exhaust cam is a 276 degree with 11.3mm lift. Motorsport valve springs and adjustable cam sprockets are recommended but not required

BMW Schrick Technical Specs

Schrick Technical Information / Specs

This item fits the following BMWs:
1988-1991 E30 BMW M3 - S14 engine

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E24 M6, E28 M5, E30 M3 Evo Cam Gear - BMW Motorsport

T#:337970

Part#: 11311312535

Ships on Sep 17, 2026

$ 360.99

This product was last offered at the strikethrough price on
03-25-2026

Starting at $ 341.99 USD

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Starting at $ 341.99 USD

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The BMW Motorsport Cam Gear retards the exhaust camshaft of the 88-91 M3 and 88-89 M5 and M6. This allows for better exhaust scavenging, which in turn gives a moderate torque increase. This is very useful in day-to-day driving. This cam gear came stock on the EVO2 M3. (+11 lb./ft torque increase at 3000 rpm on M3 and +22 lb./ft on a M5/M6). Kit includes Cam gear and valve cover gaskets. Better acceleration and improved torque for your M5/M6

This item fits the following BMWs:
1988-1991 E30 BMW M3
1988 E28 BMW M5
1987-1989 E24 BMW M6

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Standard Thrust Bearing - Priced Each

T#:594829

Part#: 11210666100

Back Ordered

$ 79.99

This product was last offered at the strikethrough price on
05-07-2026

$ 77.99 USD

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$ 77.99 USD

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Intake Valve - Priced Each

T#:367629

Part#: 11341309343

Ships in 1-2 days

3% off MSRP $ 159.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 155.99 USD

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3% off MSRP

$ 159.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 155.99 USD

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Wiseco Forged Piston & Ring - E30 M3 2.3 liter - 3.720 inch bore (94....

T#:2380

Part#: TEN300623S

Special Order: No Guaranteed ETA

$ 726.99 USD

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$ 726.99 USD

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Wiseco BMW E30 M3 Piston set - 3.720" bore. Wiseco leads the performance aftermarket by producing the highest quality forged pistons. Extreme racing conditions demand the strength and toughness that only forged pistons can offer. Compared to cast pistons, forgings are tougher and more durable and will stand up to the abuse that high-performance motorsport applications require. Each set comes with rings, wrist pins, and clips. Born over 80 years ago from the passion for racing, Wiseco is a world leader in manufacturing high-performance, forged pistons for the motorcycle, automotive, ATV, snowmobile, personal watercraft, and outboard marine markets. The Wiseco crew shares the same level of dedication to motorsports as their customers and are focused on continually refining the quality and practices it takes to exceed expectations. Engineered, forged, and machined on cutting-edge equipment in the U.S. at Wiseco’s Mentor, Ohio manufacturing facility, Wiseco pistons are the undisputed leader in quality and performance. Wiseco Performance Products, built for racers, by racers. Bore Diameter - 94.50 Compression Height - 32.00 Forging Type - Full Round Oil Ring Thickness2.8 Piston Material - 2618 Piston Pin Included - Yes Piston Pin Material - 9310 Piston Volume - -32.00 Product Series - European Product Types - Piston Kits Ringset Included - Yes Second Compression Ring Thickness - 1.2 Skirt Coating - Y Top Compression Ring Thickness - 1.0 Wrist Pin Diameter - 0.866 Wrist Pin Style - Floating This item fits the following BMWs: 1988-1991 E30 BMW M3 2.3 liter

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BMW S14 4 Zyl. 4 Vent.

T#:599280

Part#: 0227D1200-02

Special Order: No Guaranteed ETA

$ 1,619.99 USD

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$ 1,619.99 USD

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Schrick has been dedicated to engine performance through the development of only the highest-quality camshafts for more than 40 years. They've created a bond with BMW enthusiasts nearly the entire time, offering options for both the street and track using top materials for strength and accuracy. Schrick has grown into a technology center offering one of the most advanced locations for engine testing and manufacturing. These are the same cams used by many high-end German tuners who are achieving sizeable gains with the S14 engine. For the power-hungry, these cams are a great way to achieve a linear increase in horsepower from mid-range, up to redline. Duration Intake - 320 Duration Intake @ 1mm - Duration Exhaust - 320 Duration Exhaust @ 1mm - Intake Peak Timing - 102 Exhaust Peak Timing - 102 Cam Lobe Lift Intake - 13 Cam Lobe Lift Exhaust - 13 Valve Lift w/o Valve Clearance Intake - 13 Valve Lift w/o Valve Clearance Exhaust - 13 Valve Clearance Intake - 0, 25 Valve Clearance Exhaust - 0,3

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BMW S14 4 Zyl. 4 Vent.

T#:554295

Part#: 0227D1920-05

Special Order: No Guaranteed ETA

$ 1,403.99 USD

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$ 1,403.99 USD

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Schrick has been dedicated to engine performance through the development of only the highest-quality camshafts for more than 40 years. They've created a bond with BMW enthusiasts nearly the entire time, offering options for both the street and track using top materials for strength and accuracy. Schrick has grown into a technology center offering one of the most advanced locations for engine testing and manufacturing. These are the same cams used by many high-end German tuners who are achieving sizeable gains with the S14 engine. For the power-hungry, these cams are a great way to achieve a linear increase in horsepower from mid-range, up to redline. Duration Intake - 292 Duration Intake @ 1mm - 262 Duration Exhaust - 292 Duration Exhaust @ 1mm - 262 Intake Peak Timing - 102 Exhaust Peak Timing - 102 Cam Lobe Lift Intake - 12 Cam Lobe Lift Exhaust - 12 Valve Lift w/o Valve Clearance Intake - 12 Valve Lift w/o Valve Clearance Exhaust - 12 Valve Clearance Intake - 0, 25 Valve Clearance Exhaust - 0,3

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Genuine BMW Cam Follower - E28 M5 E34 M5 E30 M3

T#:34345

Part#: 11341308158

Back Ordered

$ 131.99 USD

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$ 131.99 USD

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Genuine BMW Cam Follower
This item fits the following BMW Chassis:
E30 M3,E34 M5,E30,E34

Fits BMW Engines including:
S14,S38

Project Cars

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BMW Internal Engine Parts for BMW E30 M3 S14 2.3L

Sub-Categories

Genuine BMW Bearing Shell - E34, E28, E30, E24

Replacement Piston Ring Set For Turner Motorsport/Wiseco E30 M3 2.5-l...

BMW S14 Engine ARP Head Stud Kit - E30 M3

E30 M3 2.5L Turner/Wiseco 11.25:1 Piston Set

ARP Main Stud Kit for E30 M3 S14 Engine

ARP Connecting Rod Bolt Kit for E30 M3 2.3 liter

Main Bearing Set - Standard Size - E30 M3 2.3 liter

E30 M3 Rod Bolt Set

E30 M3 Head Bolt Set

CP-CARRILLO Connecting Rod Set - CARR Rod Bolts - BMW E30 M3 S14 ...

Wiseco Forged Piston & Ring Set - E30 M3 2.3 Liter - 3.720 Inch Bore ...

Cat cams Sport Camshaft set - 279/275 11.45mm/10.95mm lift - E30 M3 ...

CP Carrillo Forged Piston Set - 94mm Bore, 11:1 Compression Ratio - E...

BMW S14 4 Cyl. 284-Degree - Camshaft

Schrick Camshaft - E30 M3 276 degree

Schrick Camshaft Set - E30 M3 284/276 degree

E24 M6, E28 M5, E30 M3 Evo Cam Gear - BMW Motorsport

Standard Thrust Bearing - Priced Each

Intake Valve - Priced Each

Wiseco Forged Piston & Ring - E30 M3 2.3 liter - 3.720 inch bore (94....

BMW S14 4 Zyl. 4 Vent.

BMW S14 4 Zyl. 4 Vent.

Genuine BMW Cam Follower - E28 M5 E34 M5 E30 M3

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