Alright, let’s talk about the ARP 4.020 Ring Compressor. If you’re diving into an engine build or a rebuild, this little tool is a must-have in your kit. Seriously, it’s one of those things you don’t know you need until you’re elbow-deep in pistons and oil.
First off, this ring compressor is made from solid aluminum, which means it’s lightweight but tough. No flimsy plastic here that’s going to crack when you’re trying to seat those rings. The black anodized finish not only looks slick but also helps prevent corrosion, so you can keep it in your toolbox without worrying about it rusting away.
Now, let’s get to the nitty-gritty. This specific model is designed for a 4.020 bore, which fits a range of performance engines. It’s pretty straightforward to use—just slide it over your piston rings, compress them, and drop the piston into the cylinder. No fuss, no mess. And trust me, when you’re working with tight tolerances, having a reliable ring compressor makes all the difference.
What’s great about the ARP ring compressor is that it doesn’t have any adjustable parts, so you don’t have to worry about it slipping or getting out of alignment while you’re working. It’s built to do one job, and it does it well. Plus, it’s compact enough to fit in your toolbox without taking up too much space.
In short, if you’re looking to make your engine assembly smoother and more efficient, grab this ARP 4.020 Ring Compressor. It’s a solid piece of gear that’ll save you time and headaches down the road.
Other Part Numbers:
ARP Bolts #arp900-0200
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

ARP (Automotive Racing Products) was founded by Gary Holzapfel in 1968 when he noticed his drag-racing friends succumbing to bolt-induced engine failure as a result of poor-quality fasteners. He drew upon his expertise in the aerospace industry to develop a solution, which turned into a successful business nonetheless.
Since its inception, ARP has been engineering and perfecting a wide range of bolts, studs, nuts, and other fasteners for engines, cylinder heads, headers, wheels, and transmissions. Today, ARP remains the undisputed world leader in automotive fasteners. Racing aficionados everywhere know and recognize the ARP brand and can vouch for its quality.
What Makes ARP Bolts So Special?Located in Ventura, California, all ARP processes from raw wire to finished fasteners are conducted in-house, right here in the USA. The company continually improves its processes with strict quality control guidelines and is dedicated to producing products that are second to none. Simply put, ARP Bolts are better than the competition because of their quality materials and advanced processes.
ARP prides itself on using only top-quality materials that are above the usual “aerospace-grade” quality that other manufacturers settle for. For example, while 8740 Chromoly steel has four different grades, ARP only uses the top two, SDF and CHQ. These grades cost twice as much as the lower commercial and aircraft grades, but deliver “zero defect” quality that you can trust each and every time.
ARP Bolts are built to withstand serious racing, possess greater tensile strengths, and can survive higher stress levels than most aircraft fasteners. ARP is dedicated to creating fasteners that boast ultimate strength and durability to ensure they last race after race. Its product lineup ranges from quality high-performance OEM parts to exotic specialty hardware for IndyCar, NASCAR, NHRA drag racing, Formula 1, and even marine applications.
Equip Your Ride with ARP Bolts at Vivid RacingIf you are looking to change the fasteners on your car, you’ve come to the right place. No other brand beats out ARP Bolts in terms of strength, quality, and race-proven success. Vivid Racing is, therefore, proud to carry an extensive lineup of products from American Racing Products like bolts, fluids, sealants, hand tools, stud kits, piston sleeves, wheel bolts, and more! If you have any questions regarding the parts above, please call our specialized sales team at (480) 966-3040.