This is fun. The LC should ring at 1 Hz, but in the default Spice sim, it's low by about 1800 PPM. You have to crank the time step down to 10 us to get the error down below 10 PPM, and the sim gets really slow. Which illustrates the futility of trying to do accurate sims of high-Q circuits in the time domain.
Version 4 SHEET 1 880 680 WIRE 224 -192 64 -192 WIRE 416 -192 224 -192 WIRE 480 -192 416 -192 WIRE 64 -112 64 -192 WIRE 416 -112 336 -112 WIRE 480 -112 416 -112 WIRE 336 -80 336 -112 WIRE 224 -64 224 -192 WIRE 288 -64 224 -64 WIRE 288 -16 224 -16 WIRE 64 16 64 -32 WIRE 336 32 336 0 WIRE 224 112 224 -16 WIRE 224 112 64 112 WIRE 320 112 224 112 WIRE 416 112 320 112 WIRE 480 112 416 112 WIRE 64 160 64 112 WIRE 320 160 320 112 WIRE 224 176 224 112 WIRE 64 288 64 240 WIRE 224 288 224 240 WIRE 320 288 320 240 FLAG 224 288 0 FLAG 320 288 0 FLAG 64 288 0 FLAG 64 16 0 FLAG 336 32 0 FLAG 416 -112 DIFF FLAG 416 -192 IDEAL FLAG 416 112 LC SYMBOL ind 304 144 R0 WINDOW 0 47 100 Left 2 WINDOW 3 -2 185 Left 2 SYMATTR InstName L1 SYMATTR Value 0.159154943 SYMBOL cap 208 176 R0 WINDOW 0 29 70 Left 2 WINDOW 3 -73 154 Left 2 SYMATTR InstName C1 SYMATTR Value 0.159154943 SYMBOL current 64 160 R0 WINDOW 0 -70 50 Left 2 WINDOW 3 -165 99 Left 2 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName I1 SYMATTR Value PULSE(1 0 1) SYMBOL voltage 64 -128 R0 WINDOW 0 -109 61 Left 2 WINDOW 3 -188 104 Left 2 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value SINE(0 1 1 1) SYMBOL e 336 -96 R0 WINDOW 0 60 40 Left 2 WINDOW 3 53 74 Left 2 SYMATTR InstName E1 SYMATTR Value -100 TEXT -208 80 Left 2 !.tran 0 25 0 TEXT -272 -176 Left 2 ;LT Spice LC Simulation TEXT -232 -136 Left 2 ;JL July 2015