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ARP 300-8248 Perma-Loc Rocker Arm Adjusters Jacket - 16-Piece Set

Part of: ARP Perma-Loc Rocker Arm Adjusters Jacket

Other options in this family: ARP 300-8247 ARP 300-8249

Manufacturer

Picture for manufacturer ARP

Part Number

300-8248
8 reviews
Sale Price

$247.62

Estimated ship date Thursday, November 26

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No Hassle Returns

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

ARP's Perma-Loc rocker arm adjusters eliminate the frustrating need for constant rocker arm re-adjustment in high-performance engines. This 16-piece set features ARP's patented poly lock design that stays tight, unlike conventional adjusters that require continual tightening.

Superior Design and Construction:

The Perma-Loc adjuster body is forged from 8740 chrome moly steel and heat-treated throughout—not just case hardened like competitors. This complete heat treatment eliminates the thread movement that causes other adjusters to loosen. The threads are precision CNC-machined exactly perpendicular to the adjuster bottom, ensuring even seating and 360-degree pressure distribution. The set screw features a flush-machined tip (not pointed) for optimum contact and seating on the rocker arm stud.

Key Features:

  • Compact 12-point head with shouldered stop holds wrench in position during adjustment
  • Eliminates need for special adjusting tools
  • Forged from 8740 alloy chrome moly steel with full heat treatment
  • Bottom flush-ground perpendicular to threads for optimal seating
  • Precision-machined threads ensure maximum engagement and even pressure
  • Flush-machined set screw tip for secure stud contact
  • 16 pieces included

Installation is straightforward—simply use a standard wrench on the 12-point head while locking the set screw with an Allen wrench. No special tools required.

Products specifications

Body

1.485

Diamater

.750

For Use with Stud Girdle

Yes

Length

2.615

Outside Diameter (in)

0.750 in.

Overall Height (in)

2.615 in.

Quantity

Sold as a set of 16.

Rocker Arm Nut Style

Polylock

Rocker Arm Style

Full roller

Rocker Stud Thread Diameter

7/16-20 in.

Shank

.600

Thread

7/16-20

Very pleased with my purchase and Autoplicity. Got the best price on the internet and received it very quickly. Product arrived just as discribed. I highly recommend Autoplicity for your on-line shopping needs.

Fast Happy

I was pleasantly surprised to received my order the following day.With ground shipping I was hoping to get it in 4 days to 6 days but this is amazing.You guys are great, thank you.

Awsome service and prices,Thanks alot

Great to deal with both online and over the phone. Buy with confidence.

I ordered new leaf springs for my Jeep Cherokee. Its already headed out to me. Ordering was nice and easy. I'll post more once i get it.

I was a bit concerned buying from a online retailer I had not done business with before, but Autoplicity is now on my list of preferred vendors. I was sure there would be some problem, as the part I ordered was $73 cheaper than anywhere else online (too good to be true). Well, the part arrived super fast, and was exactly as I ordered. I did not hear from them immediately after ordering, but received confirmation and tracking info when the item shipped, which was two days after ordering. All in all, a great, money saving experience.<br><br>Update:<br>While I am still pleased with the service I received, I find it odd that Autoplicity emailed me and offered me a refund of $5 for writing a review. It has been a couple of weeks since I posted my review, and I have yet to see any credits on my credit card.

I found great prices and they shipped immediately. Best deal online.

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