What Size Are Chevy Bellhousing Bolts?
What Size Are Chevy Bellhousing Bolts? they’re 1/2′′ coarse thread, 1-1/2′′ long should do it, you need grade 5 or better (3 radial lines on the head of the bolt). What size are the transmission bellhousing bolts? This ARP (154-0903) Hex Head Bellhousing Bolt Kit comes with enough bolts to securely hold your transmission bellhousing