Speed Pro Speed Pro Piston Forged 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 5.4 cc 23-FLT-NFO-L Sold Individually w/ Matching Flanged

Sold Individually w/ Matching Flanged Bulkhead Nut

This BBK adapter allows the installation of a BBK or any other cold air intake to a 86-88 speed density Mustang

Exact Reproduction of Original Ford Part

1939-1940 Chevrolet Master 85

Speed Pro Speed Pro Piston Forged 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 5.4 cc 23-FLT-NFO-L Sold Individually w/ Matching FlangedFully updated skirt profiles Exclusive DUROSHIELD skirt coating. DUROSHIELD provides scuff resistance, reduced bore clearances and enhanced ring sealing. SPEED PRO POWERFORGED pistons are built to stringent specifications with a precision CNC machined dome and skirts and microfinished ring grooves. The manufacturing process ensures that piston weights within a boxed set will not vary more than 4 grams and that skirt sizes are matched to within 0.