JE Pistons 350/400 Small Block Dome Top Pistons CATALYTIC CONVERTER Designed for owners who want

Designed for owners who want maximum towing capability and passing power

mellow tone without the drone of straight pipes

The muffler body is designed for adequate ground clearance in stock-height applications

Part 99490 is configured for its specific application with attention to fitment requirements

This unit is JET part number 28709

JE Pistons 350/400 Small Block Dome Top Pistons CATALYTIC CONVERTER Designed for owners who wantThe JE Pistons 350 400 Small Block Dome Top Pistons are premium forged pistons designed for engine builders who refuse to compromise. As the component that transfers combustion pressure directly to the connecting rod, piston selection is critical for power, reliability, and longevity. These pistons are ideal for high performance street, strip, and circle track applications where consistent ring seal and thermal stability matter most. CNC machined from