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#550806
Press-In Rocker Arm Stud Pinning Kit
- Prevents studs from loosening
- For all engines using pressed-in rocker arm studs
- Not for hollow studs
$13.99
/each
In Stock
$15.99
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Product Summary
- Prevents studs from loosening
- For all engines using pressed-in rocker arm studs
- Not for hollow studs
- 16 roll pins, one special 5/32" drill bit
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Return PolicySpeedway Motors 550806 Details
Speedway Motors 550806 Details
Add positive retention to your rocker arms with this complete stud pinning kit. Rocker stud pins are cheap insurance for race engines that require stock cylinder heads, or for mild street engines built on a budget.
Most factory cylinder heads utlilize press-fit rocker arm studs, which can pull out under certain conditions. Stiffer valve springs, high-lift camshafts, high engine RPM, and engine overheating all contribute to stud failure. These roll pins lock each stud in place, preventing them from rotating or loosening.
Works with all engines using pressed-in rocker arm studs. Note: Not for engines that use hollow studs, such as early Pontiac V8s, that have through-stud oiling for the rocker arms.
- Keeps press-in rocker arm studs from pulling out
- Easy upgrade for stock heads
- Cheap insurance when using stiffer springs or high lift cams
- Effective upgrade that's been used by racers for decades
- Can be installed without removing heads from engine
- Includes (16) roll pins and (1) 5/32" drill bit
Speedway Motors 550806 Specifications
Speedway Motors 550806 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 550806 |
| Brand | Speedway Motors |
Ratings & Reviews
4.4
14 Reviews
Customers appreciate the product's qualities, noting its reliability and practicality for use in automotive machine shops. They appreciated its cost-effectiveness and ease of installation, highlighting that it successfully prevents rocker studs from pulling out, making it a preferable choice over more expensive alternatives. However, multiple reviews expressed a need for better quality drill bits included in the kit, indicating a possibility for product improvement. The product's usability and performance make it an attractive option for those seeking a smart solution in similar settings.
Ratings & Reviews
4.4
14 Reviews
Customers appreciate the product's qualities, noting its reliability and practicality for use in automotive machine shops. They appreciated its cost-effectiveness and ease of installation, highlighting that it successfully prevents rocker studs from pulling out, making it a preferable choice over more expensive alternatives. However, multiple reviews expressed a need for better quality drill bits included in the kit, indicating a possibility for product improvement. The product's usability and performance make it an attractive option for those seeking a smart solution in similar settings.
4.4
14 reviews
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Most Liked Positive Review
5.0
i need more of these kits
they are easy to install you dont even have to pull the heads to install as long as you use a shop vac to catch shavings any body could use this product and alot cheaper than screw in studs unless you are building a massive thumper
Most Liked Negative Review
3.0
It is what I expected
It is a complete set of roll pins and a proper bit, no instructions so if this is your first time you may want to YouTube it. The pins are large and single roll, I wouldn't personally recommend them on narrow guide bosses like a vortec etc.
Filter by Ratings
I would buy this again
5.0
2 months ago
Diddy
Kc
Verified
They worked great
Would Recommend
Drill bit no good
3.0
2 years ago
Wingin it
Perry, Ok
But supply with kit is not hard enough to cut through the studs. Had to buy a cobalt bit to drill through the studs.
Would Recommend
worked great
5.0
3 years ago
K&D Cylinder head and block service
Bradley, WV
Verified
I have an automotive machine shop and had a customer that was running a bigger camshaft than stock and didn't want the expense of machining for screw in rocker arm studs so I suggested this as an alternative and a little extra insurance.
Would Recommend
Works great !!
5.0
4 years ago
Harry Balzona
Houston Texas
This is the answer if you use any cam and springs other than stock with pressed in studs. Get a few extra bits the same size as the one in the kit because you will usually break the one in the kit before you finish drilling all eight.
Great Product.
5.0
7 years ago
Q
Oklahoma
Verified
Came as described. I just bought an extra drill bit. Easy to install and fast.
Good pins
4.0
7 years ago
Trenton Davis
Il
Pins worked great dill bit kinda sucked went dull after first hole and bent. Save the headache and get a few quality bits before attempting this project
Would Recommend
Pin Kit
4.0
7 years ago
Rcdavid55
Nebraska
Verified
Kit is good and works well just need to have better quality drill bits in kit.
Would Recommend
Yep
5.0
7 years ago
Yammie mam
Argyle, mn
Verified
Very well put together kit. A couple extra bits wouldnt hurt
Would Recommend
It is what I expected
3.0
8 years ago
None
South Carolina
Verified
It is a complete set of roll pins and a proper bit, no instructions so if this is your first time you may want to YouTube it. The pins are large and single roll, I wouldn't personally recommend them on narrow guide bosses like a vortec etc.
Would Recommend
Rocker arm stud pinning kit
5.0
8 years ago
Rick
Marshfield, MO
Verified
Good kit. I would have paid extra for a good quality 5/32 bit.
Would Recommend
Showing 10 of 14 reviews