Harmonic Balancer Bolt, Hex Head Black Oxide AR135-2503 2.8L-3.3L Blue/Black 006" Overall Valve Length Bead

006" Overall Valve Length Bead Lock Exhaust Valve

Natural Cast FinishExternal Wastegate

1" (129mm) High x 5

2" Billet Aluminium Weld-On Filler with Black Cap

Harmonic Balancer Bolt, Hex Head Black Oxide AR135-2503 2.8L-3.3L Blue/Black 006" Overall Valve Length BeadHarmonic Balancer Bolt, Hex Head Black Oxidefits BB Chev 1 2 20 Thread x 1. 550" UHL With 1 2" Square Drive AR135 2503 135 2503 Arp Offers A Special Version O f Its Rugged Balancer 200,000 Psi Rated Balancer Bolt That C an Accept Standard 1 2 Drive R atchet Or Breaker Bar To Facil itate Rotation Of The Crank As sembly. * 1 2 Square Dr ive Forged Into Bolt Head, Ena bling The Rotation Of An Engin e With Any 1 2 Drive Tool < br>* Made From Heat treated