NL 100 AK line check vs station

[starkwired]

Poker Stars, $0.50/$1 NL Hold'em Cash Game, 6 Players
LegoPoker Hand History Converter

BB: $101.45
UTG: $181.70
MP: $78.50
Hero (CO): $126.85
BTN: $193.70
SB: $125.10

Pre-Flop: A[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/heart.gif[/img] dealt to Hero (CO)
2 folds, <font color="red">Hero raises to $4</font>, BTN folds, SB calls $3.50, BB calls $3

Flop: ($12) A[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/spade.gif[/img] 8[img]/images/graemlins/club.gif[/img] (3 Players)
SB checks, BB checks, <font color="red">Hero bets $8</font>, SB folds, BB calls $8

Turn: ($28) K[img]/images/graemlins/spade.gif[/img] (2 Players)
BB checks, <font color="red">Hero bets $14</font>, BB calls $14

River: ($56) T[img]/images/graemlins/spade.gif[/img] (2 Players)
BB checks, Hero ?

Villain is 54/4/1 over 90 hands. I've seen him call with pretty much anything until the river, and then he becomes fairly tight. How much value is here? Should I check turn and bet river instead?