ARP Adjustable 7/16 12pt Perma-Loc Rocker Arm Nut Kit
ARP Adjustable 7/16 12pt Perma-Loc Rocker Arm Nut Kit
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A$198.25 A$331.42
IN STOCK! Est Ship 4-7 days.
This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description
Stop your rocker arms from loosening forever with these ARP Perma-Loc rocker arm adjusters. Made from heat-treated, premium-grade 8740 chromoly steel, these adjusters provide 190,000 psi tensile strength for the utmost in reliability. Other features include exclusive heads with special shouldered stops to hold the adjusting wrench, precision CNC-machined threads to ensure optimum seat pressure, flush-machined set screws for proper contact on the studs, and, best of all, they don't require any special tools for installation.
Product Overview
One of the more aggravating things found in many high performance engines is constantly having to re-adjust rocker arms. Until ARP introduced the patented Perma-Loc adjuster, there wasn’t a “poly lock” on the market that you didn’t have to continually tighten.
There are several important reasons why ARP’s exclusive Perma-Loc rocker arm adjusters won’t loosen like others. First, the adjuster body is heat-treated all the way through (not just case hardened). This eliminates the thread “movement” common to others. Secondly, the threads are machined exactly perpendicular to the bottom of the adjuster, so it seats evenly and applies pressure on a full 360˚ circle. Lastly, the set screw is machined flush on the bottom (not pointed) so it will have optimum contact on the rocker arm stud.
You’ll find ARP Perma-Loc’s easy to use, too. The compact 12-point head is designed to hold your wrench in position while you lock the set screw with an Allen wrench.
*Features*
* 12-point head with special shouldered “stop” to hold wrench. Eliminates need for special adjusting tools.
* Forged in-house from 8740 alloy chrome moly steel and heat- treated throughout (not simply case hardened, as others are).
* Bottom flush-ground perpendicular to threads.
* Threads are precision CNC-machined exactly perpendicular to the bottom of adjuster to ensure an optimum seat and even pressure.
* Set screw has flush-machined tip for optimum contact and seating on stud.
* Threads machined for maximum engagement.
Product Details
| Description: | Perma-Loc Aluminum Rocker Adjuster |
|---|---|
| Part Number: | arp300-8245 |
| Size: | 1.2 x 0.55 |
| Thread: | 7/16-20 |
Part Type
Rocker Arm Nut Kit - 7/16 (16)
Specifications
- Product Attributes - Brand
- ARP
- Product Attributes - Manufacturer's Part Number
- 300-8245
- Product Attributes - Part Type
- Rocker Arm Nuts
- Product Attributes - Product Line
- ARP Perma-Loc Rocker Arm Adjusters
- Product Attributes - UPC
- 672036012090
- Product Attributes - Rocker Arm Style
- Full roller
- Product Attributes - Rocker Arm Nut Style
- Polylock
- Product Attributes - Rocker Stud Thread Diameter
- 7/16-20 in.
- Product Attributes - Overall Height (in.)
- 1.20 in.
- Product Attributes - Shank Diameter (in.)
- 0.55
- Product Attributes - For Use with Stud Girdle
- No
- Product Attributes - Quantity
- Sold as a set of 16.
- Product Attributes - Notes
- Designed for use with aluminum body roller rocker arms.
Reference Information
| Brand Name/s | Arp |
|---|---|
| StreetFX SKU | arp300-8245 |
| SFX Item ID | 4366327 |
| Supplier Item Code | 4366327 |
| Manufacturer SKU | 300-8245 |
| Manufacturer UPC | 672036012090 |
| Alternative References | 12pt |
Compatibility
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