| Spring Description | GM L76-L92 | 12589774 | ||||||
| Rated Install Height | 1.8 | Max Lift | Spring Rate Slope | |||||
| Coil Bind Height | 1.3 | 0.5 | 0.53 | 3.48 | ||||
| Rated Seat Pressure | 90 | Load Increase | ||||||
| Coil Bind Pressure | 264 | 174 | ||||||
| Spring Rate | 348 | 348 | ||||||
| Rocker Ratio | 1.6 | 1.7 | 1.8 | 1.84 | 1.9 | |||
| Engine Installed Height | 1.8 | |||||||
| Slope | 3.48 | 5.568 | 5.916 | 6.264 | 6.4032 | 6.612 | ||
| 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 | 72.6 | 116.16 | 123.42 | 130.68 | 133.584 | 137.94 | ||
| 1.84 | 76.08 | 121.728 | 129.336 | 136.944 | 139.9872 | 144.552 | ||
| 1.83 | 79.56 | 127.296 | 135.252 | 143.208 | 146.3904 | 151.164 | ||
| 1.82 | 83.04 | 132.864 | 141.168 | 149.472 | 152.7936 | 157.776 | ||
| 1.81 | 86.52 | 138.432 | 147.084 | 155.736 | 159.1968 | 164.388 | ||
| 1.80 | 90 | 144 | 153 | 162 | 165.6 | 171 | 0.000 | 0.000 |
| 1.79 | 93.48 | 149.568 | 158.916 | 168.264 | 172.0032 | 177.612 | 0.010 | 0.006 |
| 1.78 | 96.96 | 155.136 | 164.832 | 174.528 | 178.4064 | 184.224 | 0.020 | 0.013 |
| 1.77 | 100.44 | 160.704 | 170.748 | 180.792 | 184.8096 | 190.836 | 0.030 | 0.019 |
| 1.76 | 103.92 | 166.272 | 176.664 | 187.056 | 191.2128 | 197.448 | 0.040 | 0.025 |
| 1.75 | 107.4 | 171.84 | 182.58 | 193.32 | 197.616 | 204.06 | 0.050 | 0.031 |
| 1.74 | 110.88 | 177.408 | 188.496 | 199.584 | 204.0192 | 210.672 | 0.060 | 0.038 |
| 1.73 | 114.36 | 182.976 | 194.412 | 205.848 | 210.4224 | 217.284 | 0.070 | 0.044 |
| 1.72 | 117.84 | 188.544 | 200.328 | 212.112 | 216.8256 | 223.896 | 0.080 | 0.050 |
| 1.71 | 121.32 | 194.112 | 206.244 | 218.376 | 223.2288 | 230.508 | 0.090 | 0.056 |
| 1.70 | 124.8 | 199.68 | 212.16 | 224.64 | 229.632 | 237.12 | 0.100 | 0.063 |
| 1.69 | 128.28 | 205.248 | 218.076 | 230.904 | 236.0352 | 243.732 | 0.110 | 0.069 |
| 1.68 | 131.76 | 210.816 | 223.992 | 237.168 | 242.4384 | 250.344 | 0.120 | 0.075 |
| 1.67 | 135.24 | 216.384 | 229.908 | 243.432 | 248.8416 | 256.956 | 0.130 | 0.081 |
| 1.66 | 138.72 | 221.952 | 235.824 | 249.696 | 255.2448 | 263.568 | 0.140 | 0.088 |
| 1.65 | 142.2 | 227.52 | 241.74 | 255.96 | 261.648 | 270.18 | 0.150 | 0.094 |
| 1.64 | 145.68 | 233.088 | 247.656 | 262.224 | 268.0512 | 276.792 | 0.160 | 0.100 |
| 1.63 | 149.16 | 238.656 | 253.572 | 268.488 | 274.4544 | 283.404 | 0.170 | 0.106 |
| 1.62 | 152.64 | 244.224 | 259.488 | 274.752 | 280.8576 | 290.016 | 0.180 | 0.113 |
| 1.61 | 156.12 | 249.792 | 265.404 | 281.016 | 287.2608 | 296.628 | 0.190 | 0.119 |
| 1.60 | 159.6 | 255.36 | 271.32 | 287.28 | 293.664 | 303.24 | 0.200 | 0.125 |
| 1.59 | 163.08 | 260.928 | 277.236 | 293.544 | 300.0672 | 309.852 | 0.210 | 0.131 |
| 1.58 | 166.56 | 266.496 | 283.152 | 299.808 | 306.4704 | 316.464 | 0.220 | 0.138 |
| 1.57 | 170.04 | 272.064 | 289.068 | 306.072 | 312.8736 | 323.076 | 0.230 | 0.144 |
| 1.56 | 173.52 | 277.632 | 294.984 | 312.336 | 319.2768 | 329.688 | 0.240 | 0.150 |
| 1.55 | 177 | 283.2 | 300.9 | 318.6 | 325.68 | 336.3 | 0.250 | 0.156 |
| 1.54 | 180.48 | 288.768 | 306.816 | 324.864 | 332.0832 | 342.912 | 0.260 | 0.163 |
| 1.53 | 183.96 | 294.336 | 312.732 | 331.128 | 338.4864 | 349.524 | 0.270 | 0.169 |
| 1.52 | 187.44 | 299.904 | 318.648 | 337.392 | 344.8896 | 356.136 | 0.280 | 0.175 |
| 1.51 | 190.92 | 305.472 | 324.564 | 343.656 | 351.2928 | 362.748 | 0.290 | 0.181 |
| 1.50 | 194.4 | 311.04 | 330.48 | 349.92 | 357.696 | 369.36 | 0.300 | 0.188 |
| 1.49 | 197.88 | 316.608 | 336.396 | 356.184 | 364.0992 | 375.972 | 0.310 | 0.194 |
| 1.48 | 201.36 | 322.176 | 342.312 | 362.448 | 370.5024 | 382.584 | 0.320 | 0.200 |
| 1.47 | 204.84 | 327.744 | 348.228 | 368.712 | 376.9056 | 389.196 | 0.330 | 0.206 |
| 1.46 | 208.32 | 333.312 | 354.144 | 374.976 | 383.3088 | 395.808 | 0.340 | 0.213 |
| 1.45 | 211.8 | 338.88 | 360.06 | 381.24 | 389.712 | 402.42 | 0.350 | 0.219 |
| 1.44 | 215.28 | 344.448 | 365.976 | 387.504 | 396.1152 | 409.032 | 0.360 | 0.225 |
| 1.43 | 218.76 | 350.016 | 371.892 | 393.768 | 402.5184 | 415.644 | 0.370 | 0.231 |
| 1.42 | 222.24 | 355.584 | 377.808 | 400.032 | 408.9216 | 422.256 | 0.380 | 0.238 |
| 1.41 | 225.72 | 361.152 | 383.724 | 406.296 | 415.3248 | 428.868 | 0.390 | 0.244 |
| 1.40 | 229.2 | 366.72 | 389.64 | 412.56 | 421.728 | 435.48 | 0.400 | 0.250 |
| 1.39 | 232.68 | 372.288 | 395.556 | 418.824 | 428.1312 | 442.092 | 0.410 | 0.256 |
| 1.38 | 236.16 | 377.856 | 401.472 | 425.088 | 434.5344 | 448.704 | 0.420 | 0.263 |
| 1.37 | 239.64 | 383.424 | 407.388 | 431.352 | 440.9376 | 455.316 | 0.430 | 0.269 |
| 1.36 | 243.12 | 388.992 | 413.304 | 437.616 | 447.3408 | 461.928 | 0.440 | 0.275 |
| 1.35 | 246.6 | 394.56 | 419.22 | 443.88 | 453.744 | 468.54 | 0.450 | 0.281 |
| 1.34 | 250.08 | 400.128 | 425.136 | 450.144 | 460.1472 | 475.152 | 0.460 | 0.288 |
| 1.33 | 253.56 | 405.696 | 431.052 | 456.408 | 466.5504 | 481.764 | 0.470 | 0.294 |
| 1.32 | 257.04 | 411.264 | 436.968 | 462.672 | 472.9536 | 488.376 | 0.480 | 0.300 |
| 1.31 | 260.52 | 416.832 | 442.884 | 468.936 | 479.3568 | 494.988 | 0.490 | 0.306 |
| 1.30 | 264 | 422.4 | 448.8 | 475.2 | 485.76 | 501.6 | 0.500 | 0.313 |
| 1.29 | 267.48 | 427.968 | 454.716 | 481.464 | 492.1632 | 508.212 | 0.510 | 0.319 |
| 1.28 | 270.96 | 433.536 | 460.632 | 487.728 | 498.5664 | 514.824 | 0.520 | 0.325 |
| 1.27 | 274.44 | 439.104 | 466.548 | 493.992 | 504.9696 | 521.436 | 0.530 | 0.331 |
| 1.26 | 277.92 | 444.672 | 472.464 | 500.256 | 511.3728 | 528.048 | 0.540 | 0.338 |
| 1.25 | 281.4 | 450.24 | 478.38 | 506.52 | 517.776 | 534.66 | 0.550 | 0.344 |
| 1.24 | 284.88 | 455.808 | 484.296 | 512.784 | 524.1792 | 541.272 | 0.560 | 0.350 |
| 1.23 | 288.36 | 461.376 | 490.212 | 519.048 | 530.5824 | 547.884 | 0.570 | 0.356 |
| 1.22 | 291.84 | 466.944 | 496.128 | 525.312 | 536.9856 | 554.496 | 0.580 | 0.363 |
| 1.21 | 295.32 | 472.512 | 502.044 | 531.576 | 543.3888 | 561.108 | 0.590 | 0.369 |
| 1.20 | 298.8 | 478.08 | 507.96 | 537.84 | 549.792 | 567.72 | 0.600 | 0.375 |