ARP

ARP Head Stud Kit BMW S14 2.3L 4 Cylinder E30 M3 Engine Fasteners

Part # 201-4605 SKU 306249

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$163.99
In stock, ships from a US warehouse
Fits 1988-1991 BMW M3 Full fitment list
SKU: 306249
UPC: 672036041533
Width: 4.00 (in)
Height: 9.00 (in)
Depth: 2.00 (in)
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Shipping
Free, US only. Arrives in 2–4 days.
Returns
60-day free returns. Wrong fit? Our team is here 24/7. Details
Help
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Highlights

Hardware included
Studs, 12-Point Nuts, Hardened Washers
Engine application
BMW S14 2.3L Inline-4
Fastener type
Cylinder Head Studs
Installation
Direct Replacement
Material
Aluminum
Type
Cylinder Head
Interchange number
1988-1991 BMW M3 Base; 2.3L (2302cc) S14 L4; Head Stud Kit.
Application
Street, Performance, Racing, Engine Rebuilds

Description

ARP Head Stud Kit BMW S14 2.3L 4 Cylinder E30 M3 Engine Fasteners

The ARP Head Stud Kit is engineered specifically for the BMW S14 2.3L 4-cylinder engine, which is most famously utilized in the E30 M3 model. This kit provides high-quality fasteners designed to enhance the structural integrity of the engine, reducing the risk of head gasket failure. The enhanced clamping force from these head studs ensures that the cylinder head remains securely in place, especially under the high-stress conditions typical in performance-oriented applications.

Constructed from aerospace-grade materials, ARP head studs are manufactured to exceed OEM specifications. They are typically made from 8740 chromoly steel and undergo a proprietary heat-treating process that significantly boosts strength and durability. This quality construction allows for greater torque retention and the ability to handle higher levels of boost pressure without deforming or stretching, making them an essential upgrade for any performance-focused BMW enthusiast.

FITMENT: This head stud kit is compatible with the BMW S14 2.3L 4-cylinder engine, particularly for use in the E30 M3. It is an ideal choice for anyone looking to enhance the reliability and performance of their engine during demanding driving conditions.

Key Features & Benefits

  • High-strength 8740 chromoly steel construction
  • Special heat treatment for improved durability
  • Enhanced clamping force to prevent head gasket failure
  • Precision-engineered for a perfect fit on BMW S14 engines
  • Ideal for performance upgrades and high-stress applications

Fits

1988-1991 BMW M3

Fitment data from the manufacturer catalogue. Check your engine before ordering, or call us.

Specifications

Identification
BrandARP
Part number201-4605
SKU306249
UPC672036041533
Dimensions and weight
Dimensions (W × H × D)4.00 × 9.00 × 2.00 in
Material and finish
FinishBlack Oxide (Studs)
MaterialAluminum
Series and warranty
Details
Hardware includedStuds, 12-Point Nuts, Hardened Washers
IncludesBolts
Engine applicationBMW S14 2.3L Inline-4
Fastener typeCylinder Head Studs
InstallationDirect Replacement
TypeCylinder Head
Interchange number1988-1991 BMW M3 Base; 2.3L (2302cc) S14 L4; Head Stud Kit.
ApplicationStreet, Performance, Racing, Engine Rebuilds

Shipping and returns

Shipping. Free on every order, US only. Orders arrive in 2–4 days.

Returns. 60-day free returns, except in extreme cases.

Support. Our team is available 24/7 for fitment mismatches or any other reason.

Warranty. Full manufacturer guarantee.

ARP Head Stud Kit BMW S14 2.3L 4 Cylinder E30 M3 Engine Fasteners
ARP Head Stud Kit BMW S14 2.3L 4 Cylinder E30 M3 Engine Fasteners
$163.99
In stock · free shipping

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