ARP AP2.500-1LB Cylinder Head Stud
ARP AP2.500-1LB Cylinder Head Stud
Available in stock (20)
Couldn't load pickup availability
ARP AP2.500-1LB No Supplier Warranty
ARP's product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, NASCAR and NHRA drag racing and marine applications. 8740 Chrome Moly - Until the development of today's modern alloys, chrome moly was popularly considered a high strength material. Now viewed as only moderate strength, 8740 chrome moly is seen as a good tough steel, with adequate fatigue properties for most racing applications, but only if the threads are rolled after heat-treatment, as is the standard ARP production practice. Typically, chrome moly is classified as a quench and temper steel, that can be heat-treated to deliver tensile strengths between 180,000 and 210,000 Pounds Per Square Inch.
Features & Benefits
- Chrome moly considered as high strength material
- Features black oxide finish
- No Supplier Warranty
Specifications
| Model | No Supplier Warranty |
| Color | Chrome/Black |
| Finish | Chrome moly considered as high strength material |
| Weight | 1 lb |
| Dimensions | 1 x 1 x 1 in |
| Brand | ARP |
| Manufacturer Part Number | AP2.500-1LB |
Frequently Asked Questions
How do I verify fitment before ordering?
Compare manufacturer part number AP2.500-1LB against your existing part and your vehicle or equipment. Contact us with your make, model, and year if you need help confirming compatibility.
What color is this auto part?
This is the Chrome/Black variant of the No Supplier Warranty from ARP.
What are the key construction details?
ARP No Supplier Warranty features chrome moly considered as high strength material. See Features & Benefits and Specifications for the full list.
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

