| Spring Description | GM LS6 Yellow | 12499224 | Set of 16 P/N 12586484 | |||||
| Rated Install Height | 1.8 | Max Lift | Spring Rate Slope | |||||
| Coil Bind Height | 1.25 | 0.55 | 0.57 | 3.73 | ||||
| Rated Seat Pressure | 90 | Load Increase | ||||||
| Coil Bind Pressure | 295 | 205 | ||||||
| Spring Rate | 370 | 372.7272727 | ||||||
| Rocker Ratio | 1.6 | 1.7 | 1.8 | 1.84 | 1.9 | |||
| Engine Installed Height | 1.8 | |||||||
| Slope | 3.727272727 | 5.963636364 | 6.336363636 | 6.709090909 | 6.858181818 | 7.081818182 | ||
| Install Height | PSI @ Valve | PSI @ Cam 1.6 | PSI @ Cam 1.7 | PSI @ Cam 1.8 | PSI @ Cam 1.84 | PSI @ Cam 1.9 | Valve Lift | Lobe Lift |
| 1.85 | 71.36363636 | 114.1818182 | 121.3181818 | 128.4545455 | 131.3090909 | 135.5909091 | ||
| 1.84 | 75.09090909 | 120.1454545 | 127.6545455 | 135.1636364 | 138.1672727 | 142.6727273 | ||
| 1.83 | 78.81818182 | 126.1090909 | 133.9909091 | 141.8727273 | 145.0254545 | 149.7545455 | ||
| 1.82 | 82.54545455 | 132.0727273 | 140.3272727 | 148.5818182 | 151.8836364 | 156.8363636 | ||
| 1.81 | 86.27272727 | 138.0363636 | 146.6636364 | 155.2909091 | 158.7418182 | 163.9181818 | ||
| 1.80 | 90 | 144 | 153 | 162 | 165.6 | 171 | 0.000 | 0.000 |
| 1.79 | 93.72727273 | 149.9636364 | 159.3363636 | 168.7090909 | 172.4581818 | 178.0818182 | 0.010 | 0.006 |
| 1.78 | 97.45454545 | 155.9272727 | 165.6727273 | 175.4181818 | 179.3163636 | 185.1636364 | 0.020 | 0.013 |
| 1.77 | 101.1818182 | 161.8909091 | 172.0090909 | 182.1272727 | 186.1745455 | 192.2454545 | 0.030 | 0.019 |
| 1.76 | 104.9090909 | 167.8545455 | 178.3454545 | 188.8363636 | 193.0327273 | 199.3272727 | 0.040 | 0.025 |
| 1.75 | 108.6363636 | 173.8181818 | 184.6818182 | 195.5454545 | 199.8909091 | 206.4090909 | 0.050 | 0.031 |
| 1.74 | 112.3636364 | 179.7818182 | 191.0181818 | 202.2545455 | 206.7490909 | 213.4909091 | 0.060 | 0.038 |
| 1.73 | 116.0909091 | 185.7454545 | 197.3545455 | 208.9636364 | 213.6072727 | 220.5727273 | 0.070 | 0.044 |
| 1.72 | 119.8181818 | 191.7090909 | 203.6909091 | 215.6727273 | 220.4654545 | 227.6545455 | 0.080 | 0.050 |
| 1.71 | 123.5454545 | 197.6727273 | 210.0272727 | 222.3818182 | 227.3236364 | 234.7363636 | 0.090 | 0.056 |
| 1.70 | 127.2727273 | 203.6363636 | 216.3636364 | 229.0909091 | 234.1818182 | 241.8181818 | 0.100 | 0.063 |
| 1.69 | 131 | 209.6 | 222.7 | 235.8 | 241.04 | 248.9 | 0.110 | 0.069 |
| 1.68 | 134.7272727 | 215.5636364 | 229.0363636 | 242.5090909 | 247.8981818 | 255.9818182 | 0.120 | 0.075 |
| 1.67 | 138.4545455 | 221.5272727 | 235.3727273 | 249.2181818 | 254.7563636 | 263.0636364 | 0.130 | 0.081 |
| 1.66 | 142.1818182 | 227.4909091 | 241.7090909 | 255.9272727 | 261.6145455 | 270.1454545 | 0.140 | 0.088 |
| 1.65 | 145.9090909 | 233.4545455 | 248.0454545 | 262.6363636 | 268.4727273 | 277.2272727 | 0.150 | 0.094 |
| 1.64 | 149.6363636 | 239.4181818 | 254.3818182 | 269.3454545 | 275.3309091 | 284.3090909 | 0.160 | 0.100 |
| 1.63 | 153.3636364 | 245.3818182 | 260.7181818 | 276.0545455 | 282.1890909 | 291.3909091 | 0.170 | 0.106 |
| 1.62 | 157.0909091 | 251.3454545 | 267.0545455 | 282.7636364 | 289.0472727 | 298.4727273 | 0.180 | 0.113 |
| 1.61 | 160.8181818 | 257.3090909 | 273.3909091 | 289.4727273 | 295.9054545 | 305.5545455 | 0.190 | 0.119 |
| 1.60 | 164.5454545 | 263.2727273 | 279.7272727 | 296.1818182 | 302.7636364 | 312.6363636 | 0.200 | 0.125 |
| 1.59 | 168.2727273 | 269.2363636 | 286.0636364 | 302.8909091 | 309.6218182 | 319.7181818 | 0.210 | 0.131 |
| 1.58 | 172 | 275.2 | 292.4 | 309.6 | 316.48 | 326.8 | 0.220 | 0.138 |
| 1.57 | 175.7272727 | 281.1636364 | 298.7363636 | 316.3090909 | 323.3381818 | 333.8818182 | 0.230 | 0.144 |
| 1.56 | 179.4545455 | 287.1272727 | 305.0727273 | 323.0181818 | 330.1963636 | 340.9636364 | 0.240 | 0.150 |
| 1.55 | 183.1818182 | 293.0909091 | 311.4090909 | 329.7272727 | 337.0545455 | 348.0454545 | 0.250 | 0.156 |
| 1.54 | 186.9090909 | 299.0545455 | 317.7454545 | 336.4363636 | 343.9127273 | 355.1272727 | 0.260 | 0.163 |
| 1.53 | 190.6363636 | 305.0181818 | 324.0818182 | 343.1454545 | 350.7709091 | 362.2090909 | 0.270 | 0.169 |
| 1.52 | 194.3636364 | 310.9818182 | 330.4181818 | 349.8545455 | 357.6290909 | 369.2909091 | 0.280 | 0.175 |
| 1.51 | 198.0909091 | 316.9454545 | 336.7545455 | 356.5636364 | 364.4872727 | 376.3727273 | 0.290 | 0.181 |
| 1.50 | 201.8181818 | 322.9090909 | 343.0909091 | 363.2727273 | 371.3454545 | 383.4545455 | 0.300 | 0.188 |
| 1.49 | 205.5454545 | 328.8727273 | 349.4272727 | 369.9818182 | 378.2036364 | 390.5363636 | 0.310 | 0.194 |
| 1.48 | 209.2727273 | 334.8363636 | 355.7636364 | 376.6909091 | 385.0618182 | 397.6181818 | 0.320 | 0.200 |
| 1.47 | 213 | 340.8 | 362.1 | 383.4 | 391.92 | 404.7 | 0.330 | 0.206 |
| 1.46 | 216.7272727 | 346.7636364 | 368.4363636 | 390.1090909 | 398.7781818 | 411.7818182 | 0.340 | 0.213 |
| 1.45 | 220.4545455 | 352.7272727 | 374.7727273 | 396.8181818 | 405.6363636 | 418.8636364 | 0.350 | 0.219 |
| 1.44 | 224.1818182 | 358.6909091 | 381.1090909 | 403.5272727 | 412.4945455 | 425.9454545 | 0.360 | 0.225 |
| 1.43 | 227.9090909 | 364.6545455 | 387.4454545 | 410.2363636 | 419.3527273 | 433.0272727 | 0.370 | 0.231 |
| 1.42 | 231.6363636 | 370.6181818 | 393.7818182 | 416.9454545 | 426.2109091 | 440.1090909 | 0.380 | 0.238 |
| 1.41 | 235.3636364 | 376.5818182 | 400.1181818 | 423.6545455 | 433.0690909 | 447.1909091 | 0.390 | 0.244 |
| 1.40 | 239.0909091 | 382.5454545 | 406.4545455 | 430.3636364 | 439.9272727 | 454.2727273 | 0.400 | 0.250 |
| 1.39 | 242.8181818 | 388.5090909 | 412.7909091 | 437.0727273 | 446.7854545 | 461.3545455 | 0.410 | 0.256 |
| 1.38 | 246.5454545 | 394.4727273 | 419.1272727 | 443.7818182 | 453.6436364 | 468.4363636 | 0.420 | 0.263 |
| 1.37 | 250.2727273 | 400.4363636 | 425.4636364 | 450.4909091 | 460.5018182 | 475.5181818 | 0.430 | 0.269 |
| 1.36 | 254 | 406.4 | 431.8 | 457.2 | 467.36 | 482.6 | 0.440 | 0.275 |
| 1.35 | 257.7272727 | 412.3636364 | 438.1363636 | 463.9090909 | 474.2181818 | 489.6818182 | 0.450 | 0.281 |
| 1.34 | 261.4545455 | 418.3272727 | 444.4727273 | 470.6181818 | 481.0763636 | 496.7636364 | 0.460 | 0.288 |
| 1.33 | 265.1818182 | 424.2909091 | 450.8090909 | 477.3272727 | 487.9345455 | 503.8454545 | 0.470 | 0.294 |
| 1.32 | 268.9090909 | 430.2545455 | 457.1454545 | 484.0363636 | 494.7927273 | 510.9272727 | 0.480 | 0.300 |
| 1.31 | 272.6363636 | 436.2181818 | 463.4818182 | 490.7454545 | 501.6509091 | 518.0090909 | 0.490 | 0.306 |
| 1.30 | 276.3636364 | 442.1818182 | 469.8181818 | 497.4545455 | 508.5090909 | 525.0909091 | 0.500 | 0.313 |
| 1.29 | 280.0909091 | 448.1454545 | 476.1545455 | 504.1636364 | 515.3672727 | 532.1727273 | 0.510 | 0.319 |
| 1.28 | 283.8181818 | 454.1090909 | 482.4909091 | 510.8727273 | 522.2254545 | 539.2545455 | 0.520 | 0.325 |
| 1.27 | 287.5454545 | 460.0727273 | 488.8272727 | 517.5818182 | 529.0836364 | 546.3363636 | 0.530 | 0.331 |
| 1.26 | 291.2727273 | 466.0363636 | 495.1636364 | 524.2909091 | 535.9418182 | 553.4181818 | 0.540 | 0.338 |
| 1.25 | 295 | 472 | 501.5 | 531 | 542.8 | 560.5 | 0.550 | 0.344 |
| 1.24 | 298.7272727 | 477.9636364 | 507.8363636 | 537.7090909 | 549.6581818 | 567.5818182 | 0.560 | 0.350 |
| 1.23 | 302.4545455 | 483.9272727 | 514.1727273 | 544.4181818 | 556.5163636 | 574.6636364 | 0.570 | 0.356 |
| 1.22 | 306.1818182 | 489.8909091 | 520.5090909 | 551.1272727 | 563.3745455 | 581.7454545 | 0.580 | 0.363 |
| 1.21 | 309.9090909 | 495.8545455 | 526.8454545 | 557.8363636 | 570.2327273 | 588.8272727 | 0.590 | 0.369 |
| 1.20 | 313.6363636 | 501.8181818 | 533.1818182 | 564.5454545 | 577.0909091 | 595.9090909 | 0.600 | 0.375 |