BBC w/Brdx alum block w/Sonny Lenard 14.5° Pro Stock head,PS head hsk. Genuine ARP hardware, supplied as kit 135-4301.Fits Chevrolet — 396, 402, 409, 427, 454, 496, 502, 572, Big Block - Brodix, Big Block - Sonny Leonard, Brodix, Sonny LeonardDetails Kit number: 135-4301 Category: Cylinder Head Product group: Cylinder Heads California Proposition 65 warning⚠ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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