This Melling 22450 camshaft is designed for use in Chevrolet GM SBC V8 engines and is a mechanical flat tappet type. With an intake lift of 0.512 inches and an exhaust lift of 0.536 inches, this camshaft is classified as a Class 4 out of 4 performance part. Its intake duration at 0.050" is 262 and the exhaust duration is 273, while the lobe separation angle is 112 degrees. The camshaft has a rough idle quality and an approximate power range of 4000-7500. Made in the United States, this camshaft is made of flame-hardened casting material and has a manganese phosphate coated finish. The item weight is 8.6 pounds and it is compatible with various interchange part numbers such as MC22450 and E-917-P. This camshaft is ideal for those looking for a high-performance upgrade for their engine.