ARP High Performance Series Main Stud Kit - SB Chevy - 4-Bolt Main w/ Splayed Cap Bolts H77403FS and the TF20 is certified

and the TF20 is certified compliant to the SFI 3

Comes available with combustion chamber volumes of 58cc or 72cc

EFI Bypass

not only protecting the internals of the engine itself

ARP High Performance Series Main Stud Kit - SB Chevy - 4-Bolt Main w/ Splayed Cap Bolts H77403FS and the TF20 is certifiedARP High Performance Series Main Studs eliminate main cap walk and protect the treads in cylinder block. ARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, IMSA, NASCAR and NHRA drag racing and marine applications. Since 1968, ARP is the fastener