Chevy BBC 454 Rear Seal Adpater Gen V &VI Block 1PC to 2PC Rear Main Seal you'll want Speedmaster NPT-to-smooth hose

you'll want Speedmaster NPT-to-smooth hose adapters to give the installation that final

All the factory flaws redesigned to be eliminated

Tune your rpm-activated control to your application with one of these Speedmaster rpm module kits

you'll need to look at every area of the transmission to boost your performance

that have a 4bolt pattern

Chevy BBC 454 Rear Seal Adpater Gen V &VI Block 1PC to 2PC Rear Main Seal you'll want Speedmaster NPT-to-smooth hoseThese Speedmaster rear main seal adapter kits are designed to install an early 2 piece style crankshaft into a late model, 1 piece engine block. They are manufactured from billet aluminum and require no drilling or welding for installation.