ARP Big Block Chevy 135-2503

135-2503 Big Block Chevy Specifications

• Fastener Finish Black oxide
• Fastener Material Chromoly
• Fastener Yield Strength (psi) 200,000
• Head Style Square drive
• Underhead Length (in.) 1.55
• Washer Included Yes
• Thread Size (in.) 1/2-20 RH

Applies to:

• 1966-1995 Generation 4 and 5