4.720 ring compressor

4.720 ring compressorMaterial: Aluminum Finish: Black Anodized Material 2: Finish 2: Origin: USA

They’re offered in a variety of heights to accommodate most any combination of carb and spacer

large underhead radius and rolled threads for the utmost in reliability

which makes for amore consistent clamping force – and one that compensates forhead gasket compression when the cylinder heads are installed

Increased material strength overcomes valve train harmonics and stress

Made from ARP2000 and heat-treated to 220

Most applications have undercut short bolts that can help eliminate head gasket failures through providing more “stretch” to compensate for theadditional compression of gaskets

and female O-ring types

380˝ diameters to fit most any OEM or aftermarket block

12-point head design and larger than stock shank diameter for increased strength and improved flywheel register

Not to be used with OEM-style

It’s important to note that lesser quality studsare not even centerless ground – the material is thread rolled inbar stock form (mostly before heat-treat

threadpitch to thread pitch