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ARP 180-1201 Header Bolt Kit for Oldsmobile 330-455

(Oldsmobile Cutlass Supreme 1967-85, Cutlass 1964-81, 442 1965-71, Delta 88 1965-85, 98 1965-84, Toronado 1966-85, Custom Cruiser 1971-85, 1992 + 11 more models)

Manufacturer

Picture for manufacturer ARP

Part Number

180-1201
8 reviews
Sale Price

$18.18

Estimated ship date Friday, November 20

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Product Details

The ARP 180-1201 is a premium-grade header bolt kit designed specifically for Oldsmobile 330-455 cubic inch V8 engines. This complete kit includes 14 pieces of 3/8-inch diameter bolts with 12-point heads and 0.750-inch underhead length, providing a secure and reliable connection between exhaust headers and cylinder heads.

Key Features:

  • Chrome moly construction with black oxide finish for corrosion and heat resistance
  • 170,000 psi tensile strength—substantially stronger than Grade 8 hardware
  • Compact 12-point head design allows easy socket access close to exhaust pipes
  • Includes premium-quality washers for optimal clamping force
  • 3/8-inch diameter x 0.750-inch underhead length
  • Complete kit with 14 pieces for proper header installation

ARP manufactures these header bolts from 8740 chrome moly steel, heat-treated to deliver exceptional strength and durability in high-temperature exhaust applications. The black oxide finish provides excellent corrosion resistance while maintaining the compact dimensions needed for tight header installations. Each bolt is precision-manufactured to ARP's exacting standards, ensuring consistent torque values and reliable performance under extreme conditions.

Products specifications

Fits

Oldsmobile Cutlass Supreme 1967-85, Cutlass 1964-81, 442 1965-71, Delta 88 1965-85, 98 1965-84, Toronado 1966-85, Custom Cruiser 1971-85, 1992, F85 1964-72, Cutlass Salon 1975-77, 1979-80, 1985, Cutlass Calais 1979-85, Omega 1973-79 + 7 more models

Fastener Finish

Black oxide

Fastener Material

Steel

Fastener Style

Bolt

Head Style

12-point

Material

Black Oxide

Quantity

Sold as a set of 14.

Size

3/8

Thread Size

3/8-16 in.

UHL

0.75

Underhead Length (in)

0.750 in.

Underhead Length (mm)

19mm

Very easy and smooth, great experience.

Excellent service and communication.

I got the items exactly as described with VERY fast shipping. i highly recommend them to everyone. And I will definitely be shopping there again!

Great prices, clear information and fast shipping!

Great price. Very happy with order. Will buy from them again.

Thanks for the great price

Super fast shipping, exactly as ordered, no drama, problems or complications

Although there was a mix up with the shipping on my order customer service was helpful and expedited the solution and made it worth my trouble. I will be keeping Autoplicity in mind for any other parts I might need for my Jeep.

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