Harmonic Balancer Bolt, 12-Point Black Oxide AR234-2501 Product:fits SB Chev 7/16-20 Thread x 2.470" UHL, 13/16" Socket Stress corrosion and hydrogen embrittlement

Stress corrosion and hydrogen embrittlement are typically not a problem

The Aeroflow header flanges are offered in a variety of header flange sizes and shapes to mate your cylinder heads and headers/manifolds to meet your exhaust building needs

Rocker Arm Stud Kit Pro Series3/8" fits SB Chev

AF450-06-30M

210cc LSX Mongoose Aluminium Cylinder Heads66cc Combustion Chamber

Harmonic Balancer Bolt, 12-Point Black Oxide AR234-2501 Product:fits SB Chev 7/16-20 Thread x 2.470" UHL, 13/16" Socket Stress corrosion and hydrogen embrittlementHarmonic Balancer Bolt, 12 Point Black Oxidefits SB Chev 7 16 20 Thread x 2. 470" UHL, 13 16" Socket AR234 2501 234 2501 As The Crankshaft Flexes And T wists, The Balancer Absorbs In credible Amounts Of Kinetic En ergy. To Ensure That The Balan cer Is Locked In Position Arp Has Developed These Ultra Stro ng 200,000 Psi Bolts That Let You Exert Maximum Clamping For ce. Special Features Include 1 4 Thick, Wide Area Washer And An Extra Tall 12 point Head