SH 327 was designated on February 13, 1940 to serve as a route from US 69 south of Kountze to Silsbee.

On February 23, 1956 the highway was extended to the east to the new location of US 96.

[1] SH 327 begins in East Texas at a junction with US 69 and US 287.

SH 327 reaches its eastern terminus at US 96 in Silsbee.

[1][2] The entire route is in Hardin County.