5150 AutoSport
BMW M50 M52 S50 S52 Stroker Kit by 5150 AutoSport
BACKORDER - AVAILABLE
Connecting Rods
Bore Options
Compression Ratio
Pay later options
Spread the cost of your order. Choose your provider at checkout — nothing to set up here.
KLARNA FINANCE
Part 1: How it works
Shop now. Pay later with Klarna.
Please spend responsibly. Borrowing more than you can afford could seriously affect your financial status. Make sure you can afford to make your monthly repayments on time.
Step 1: Add products to your cart and select “Klarna” when you check out
Step 2: Enter a few personal details and you’ll know instantly if you’re approved
Step 3: Klarna will send you an email confirmation and reminders when it’s time to pay and you can manage your orders and payments in the Klarna app.
Part 2: Payments information
Pay in 30 days
Make your purchase today so you can try before you buy. Only pay for what you keep. Pay up to 30 days later. No interest. No fees. No impact to your credit score.
Paying after delivery allows you to try before you buy and is the easiest way to shop online.
- Complete the payment in full after purchase at no added cost.
- Report returns directly in our app and only pay for the items that you keep.
- Not making your payment on time could affect your ability to use Klarna in the future.
- Debt collection agencies are used as a last resort
You must be 18+ and a UK resident to be eligible for this credit offer. Pay Later Terms and Conditions
Pay in 3 interest-free instalments
Spread the cost of your purchase into 3 interest-free instalments. The first payment is made at point of purchase, with remaining instalments scheduled automatically every 30 days. No interest or fees. Select the Klarna option and enter your debit or credit card information. To check your eligibility, Klarna will perform a soft search with a credit reference agency. This will not affect your credit score.
No interest. No fees. No impact to your credit score.
- A new way to pay that's an alternative to a credit card.
- 3 instalments gives you flexibility to shop without interest or hidden fees. - Not making your payment on time could affect your ability to use Klarna in the future.
- Debt collection agencies are used as a last resort.
You must be 18+ and a UK resident to be eligible for this credit offer. Pay in 3 Terms and Conditions
Part 3: About Klarna
Pay online or in the app
Review your latest purchases and make payments in the Klarna app or online.
● Download the Klarna app: https://www.klarna.com/app
● Log in online: https://app.klarna.com/login
● Chat with customer service: https://www.klarna.com/uk/customer-service/
Safe and secure
With Klarna, you are always covered through Klarna’s Buyer Protection policy. Modern safeguards protect your information to prevent unauthorized purchases.Frequently asked questions
Visit our FAQ (https://www.klarna.com/uk/customer-service/) page to find out more about using Klarna.About Klarna
At Klarna, we have a relentless focus on creating the best shopping experience in the world. We believe payments are so much more than just a way to send money. That’s why our smooth checkout options give you more time and control so you can focus on the things you love.● More than 90 million shoppers are using Klarna.
● 200,000 retailers are working with us worldwide.
● We’re one Europe’s largest banks and we’ve been powering online checkouts for over 15 years.
Please spend responsibly. Borrowing more than you can afford could seriously affect your financial status. Make sure you can afford to make your monthly repayments on time.
R44 Performance Ltd. is not a lender and acts only as an introducer. The credit product is provided by Klarna Bank AB (publ). Credit is only available to permanent UK residents aged 18 and over, depending on their status. Terms and conditions apply. Please note that Pay in 30 days and Pay in 3 instalments are not regulated by the FCA.
Choose options
BACKORDER - AVAILABLE
Connecting Rods
Bore Options
Compression Ratio
Pay later options
Spread the cost of your order. Choose your provider at checkout — nothing to set up here.
KLARNA FINANCE
Part 1: How it works
Shop now. Pay later with Klarna.
Please spend responsibly. Borrowing more than you can afford could seriously affect your financial status. Make sure you can afford to make your monthly repayments on time.
Step 1: Add products to your cart and select “Klarna” when you check out
Step 2: Enter a few personal details and you’ll know instantly if you’re approved
Step 3: Klarna will send you an email confirmation and reminders when it’s time to pay and you can manage your orders and payments in the Klarna app.
Part 2: Payments information
Pay in 30 days
Make your purchase today so you can try before you buy. Only pay for what you keep. Pay up to 30 days later. No interest. No fees. No impact to your credit score.
Paying after delivery allows you to try before you buy and is the easiest way to shop online.
- Complete the payment in full after purchase at no added cost.
- Report returns directly in our app and only pay for the items that you keep.
- Not making your payment on time could affect your ability to use Klarna in the future.
- Debt collection agencies are used as a last resort
You must be 18+ and a UK resident to be eligible for this credit offer. Pay Later Terms and Conditions
Pay in 3 interest-free instalments
Spread the cost of your purchase into 3 interest-free instalments. The first payment is made at point of purchase, with remaining instalments scheduled automatically every 30 days. No interest or fees. Select the Klarna option and enter your debit or credit card information. To check your eligibility, Klarna will perform a soft search with a credit reference agency. This will not affect your credit score.
No interest. No fees. No impact to your credit score.
- A new way to pay that's an alternative to a credit card.
- 3 instalments gives you flexibility to shop without interest or hidden fees. - Not making your payment on time could affect your ability to use Klarna in the future.
- Debt collection agencies are used as a last resort.
You must be 18+ and a UK resident to be eligible for this credit offer. Pay in 3 Terms and Conditions
Part 3: About Klarna
Pay online or in the app
Review your latest purchases and make payments in the Klarna app or online.
● Download the Klarna app: https://www.klarna.com/app
● Log in online: https://app.klarna.com/login
● Chat with customer service: https://www.klarna.com/uk/customer-service/
Safe and secure
With Klarna, you are always covered through Klarna’s Buyer Protection policy. Modern safeguards protect your information to prevent unauthorized purchases.Frequently asked questions
Visit our FAQ (https://www.klarna.com/uk/customer-service/) page to find out more about using Klarna.About Klarna
At Klarna, we have a relentless focus on creating the best shopping experience in the world. We believe payments are so much more than just a way to send money. That’s why our smooth checkout options give you more time and control so you can focus on the things you love.● More than 90 million shoppers are using Klarna.
● 200,000 retailers are working with us worldwide.
● We’re one Europe’s largest banks and we’ve been powering online checkouts for over 15 years.
Please spend responsibly. Borrowing more than you can afford could seriously affect your financial status. Make sure you can afford to make your monthly repayments on time.
R44 Performance Ltd. is not a lender and acts only as an introducer. The credit product is provided by Klarna Bank AB (publ). Credit is only available to permanent UK residents aged 18 and over, depending on their status. Terms and conditions apply. Please note that Pay in 30 days and Pay in 3 instalments are not regulated by the FCA.
BACKORDER - AVAILABLE
Connecting Rods
Bore Options
Compression Ratio
Pay later options
Spread the cost of your order. Choose your provider at checkout — nothing to set up here.
KLARNA FINANCE
Part 1: How it works
Shop now. Pay later with Klarna.
Please spend responsibly. Borrowing more than you can afford could seriously affect your financial status. Make sure you can afford to make your monthly repayments on time.
Step 1: Add products to your cart and select “Klarna” when you check out
Step 2: Enter a few personal details and you’ll know instantly if you’re approved
Step 3: Klarna will send you an email confirmation and reminders when it’s time to pay and you can manage your orders and payments in the Klarna app.
Part 2: Payments information
Pay in 30 days
Make your purchase today so you can try before you buy. Only pay for what you keep. Pay up to 30 days later. No interest. No fees. No impact to your credit score.
Paying after delivery allows you to try before you buy and is the easiest way to shop online.
- Complete the payment in full after purchase at no added cost.
- Report returns directly in our app and only pay for the items that you keep.
- Not making your payment on time could affect your ability to use Klarna in the future.
- Debt collection agencies are used as a last resort
You must be 18+ and a UK resident to be eligible for this credit offer. Pay Later Terms and Conditions
Pay in 3 interest-free instalments
Spread the cost of your purchase into 3 interest-free instalments. The first payment is made at point of purchase, with remaining instalments scheduled automatically every 30 days. No interest or fees. Select the Klarna option and enter your debit or credit card information. To check your eligibility, Klarna will perform a soft search with a credit reference agency. This will not affect your credit score.
No interest. No fees. No impact to your credit score.
- A new way to pay that's an alternative to a credit card.
- 3 instalments gives you flexibility to shop without interest or hidden fees. - Not making your payment on time could affect your ability to use Klarna in the future.
- Debt collection agencies are used as a last resort.
You must be 18+ and a UK resident to be eligible for this credit offer. Pay in 3 Terms and Conditions
Part 3: About Klarna
Pay online or in the app
Review your latest purchases and make payments in the Klarna app or online.
● Download the Klarna app: https://www.klarna.com/app
● Log in online: https://app.klarna.com/login
● Chat with customer service: https://www.klarna.com/uk/customer-service/
Safe and secure
With Klarna, you are always covered through Klarna’s Buyer Protection policy. Modern safeguards protect your information to prevent unauthorized purchases.Frequently asked questions
Visit our FAQ (https://www.klarna.com/uk/customer-service/) page to find out more about using Klarna.About Klarna
At Klarna, we have a relentless focus on creating the best shopping experience in the world. We believe payments are so much more than just a way to send money. That’s why our smooth checkout options give you more time and control so you can focus on the things you love.● More than 90 million shoppers are using Klarna.
● 200,000 retailers are working with us worldwide.
● We’re one Europe’s largest banks and we’ve been powering online checkouts for over 15 years.
Please spend responsibly. Borrowing more than you can afford could seriously affect your financial status. Make sure you can afford to make your monthly repayments on time.
R44 Performance Ltd. is not a lender and acts only as an introducer. The credit product is provided by Klarna Bank AB (publ). Credit is only available to permanent UK residents aged 18 and over, depending on their status. Terms and conditions apply. Please note that Pay in 30 days and Pay in 3 instalments are not regulated by the FCA.
Build your BMW M52TU / M50 / M52 / S50 engines with the BMW M50 M52 S50 S52 Stroker Kit by 5150 AutoSport, to handle serious power and sustained high-RPM abuse. Engineered by 5150 AutoSport, this stroker kit is built to the standards demanded by high-performance and motorsport BMW builds.
Key Features
- Designed for BMW M52TU / M50 / M52 / S50 engines
- Forged from high-strength, lightweight materials
- Engineered for maximum power and durability
- Precision-machined to exacting tolerances
- Suitable for naturally aspirated and forced-induction builds
- Rigorously tested motorsport-grade quality
- Available in multiple connecting rods options to suit your build
- Supplied by 5150 AutoSport, trusted by BMW enthusiasts worldwide
Product Details
BMW M50 M52 S50 S52 Stroker Kit by 5150 AutoSport
Bigger displacement, more torque and more power; Our 5150 AutoSport BMW M50 M52 S50 S52 Stroker Kits are specifically designed for BMW M5X / S5X inline-6 Engines.
Utilizing CP-Carrillo Pro-Xtreme Forged Pistons and Connecting Rods, as well as the 5150 4340 Billet Steel Crankshaft, our BMW M50 M52 S50 S52 Stroker Kit has stood up to the tests and trials of high horsepower application time and time again. Featured in our very own 5150 Bully E36, we only sell you the products that we have used and tested ourselves.
Benefits of Stroking an Engine:
- Higher displacement offers greater power output and torque from increased cylinder volume and improved air-fuel mixture combustion
- Longer crankshaft stroke increases connecting rod leverage for increased torque output at lower RPMs
- Improved throttle response
- Increased horsepower
Teams have applied this kit in Hill Climb, Road Racing, Endurance Racing, Rally, Time Attack, Drag Racing, Roll Racing, Drifting, and Street applications, all with powerful results.
BMW M50 M52 S50 S52 Stroker Kit Contents:
- 5150 AutoSport 4340 Billet Steel Crankshaft
- Professionally turned, polished, and coated with anti-wear coating
- Fully balanced
- Manley Performance Connecting Rods (Rated for 1,000HP, 8500 RPM)
- Optional Upgrade to CP-Carrillo Pro-Xtreme Forged Connecting Rods (Rated for 2,000HP, 9500 RPM)
- CP-Carrillo Pro-Xtreme Forged Pistons
- CP-Carrillo Piston Wrist Pins
- CP-Carrillo Piston Rings
- CP-Carrillo Piston Wire Locks
Our BMW M50 M52 S50 S52 Stroker Kit offers varying displacements, ranging from 3300 cc to 3500 cc, depending on the selected bore size:
84.5 mm bore size for 3270 cc displacement
85 mm bore size for 3303 cc displacement
85.5 mm bore size for 3342 cc displacement
86 mm bore size for 3381 cc displacement
86.5 mm bore size for 3420 cc displacement
87 mm bore size for 3460 cc displacement
Have more questions? Contact our engine build advisors to discuss your build.
BMW M50 Applications:
3 Series
1990-1995 E36 320i / 325i / 325is
1994-1996 E35/E36 318ti
5 Series
1990-1996 E34 520i / 525i
1991-1996 E34 Touring 520i / 525i
Z Series
1995 E36/E37 Z3 2.0i / 2.5i
BMW M52 Applications:
3 Series
1994-1999 E36 320i / 323i / 323is / 328i / 328is
1997-2000 E35/E36 318ti / 323ti
5 Series
1996-1998 E39 520i / 523i / 528i
7 Series
1996-1998 E38 728i / 728iL
Z Series
1996-1999 E36/E37/E38 Z3 2.0i / 2.2i / 2.8i
BMW S50 US Applications:
3 Series
1994-1995 E36 M3
BMW S52 Applications:
3 Series
1996-1999 E36 M3
Z Series
1998-2000 E36/E37/E38 Z3M
Connecting Rods Options
- Manley Performance
- CP-Carrillo
Compatibility
BMW M52TU Models
- BMW E46 323i / 328i
- BMW E39 528i
- BMW Z3 2.5 / 2.8
BMW M50 Models
- BMW E34 525i
- BMW E36 320i / 325i
BMW M52 Models
- BMW E36 323i / 328i
- BMW E39 523i / 528i
- BMW Z3 2.8
BMW S50 Models
- BMW E36 M3 (Euro)
BMW S52 Models
- BMW E36 M3 (US, 1996-1999)
- BMW Z3 M Roadster / Coupe (US)
Why Choose 5150 AutoSport?
- Purpose-built BMW performance engineering
- Components developed for high-power, real-world durability
- Trusted by serious BMW engine builders
- Specialist knowledge of forced-induction and high-RPM builds
Why Buy from R44 Performance?
R44 Performance supplies premium BMW performance and engine-building components trusted by enthusiasts worldwide.
- BMW specialists
- Genuine 5150 AutoSport products
- Fast UK & worldwide shipping
- Expert product support
Upgrade your BMW M52TU / M50 / M52 / S50 build with the BMW M50 M52 S50 S52 Stroker Kit by 5150 AutoSport — available now from R44 Performance.
Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.
It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.
We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.
We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.
All in stock products ship the same day if ordered before 2pm GMT
For out of stock items we will contact you with an estimated wait time if not otherwise specified above.
We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy
All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.
PLEASE NOTE
- Orders with both in-stock and backorder or out-of-stock products will be dispatched once all products are available to ship together.
- Contact our sales team if you want your parts fitted to your vehicle at our London workshop.
- Shipping estimates are based on courier delivery times and don't include time to despatch from our warehouse.