| Spring Description | GM LS7 | 12578457 | ||||||
| Rated Install Height | 1.96 | Max Lift | Spring Rate Slope | |||||
| Coil Bind Height | 1.368 | 0.592 | 0.6 | 3.53 | ||||
| Rated Seat Pressure | 101 | Load Increase | ||||||
| Coil Bind Pressure | 310 | 209 | ||||||
| Spring Rate | 353 | 353.0405405 | ||||||
| Rocker Ratio | 1.6 | 1.7 | 1.8 | 1.84 | 1.9 | |||
| Engine Installed Height | 1.8 | |||||||
| Slope | 3.530405405 | 5.648648649 | 6.001689189 | 6.35472973 | 6.495945946 | 6.70777027 | ||
| 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 |
| 2.01 | 83.34797297 | 133.3567568 | 141.6915541 | 150.0263514 | 153.3602703 | 158.3611486 | ||
| 2.00 | 86.87837838 | 139.0054054 | 147.6932432 | 156.3810811 | 159.8562162 | 165.0689189 | ||
| 1.99 | 90.40878378 | 144.6540541 | 153.6949324 | 162.7358108 | 166.3521622 | 171.7766892 | ||
| 1.98 | 93.93918919 | 150.3027027 | 159.6966216 | 169.0905405 | 172.8481081 | 178.4844595 | ||
| 1.97 | 97.46959459 | 155.9513514 | 165.6983108 | 175.4452703 | 179.3440541 | 185.1922297 | ||
| 1.96 | 101 | 161.6 | 171.7 | 181.8 | 185.84 | 191.9 | 0.000 | 0.000 |
| 1.95 | 104.5304054 | 167.2486486 | 177.7016892 | 188.1547297 | 192.3359459 | 198.6077703 | ||
| 1.94 | 108.0608108 | 172.8972973 | 183.7033784 | 194.5094595 | 198.8318919 | 205.3155405 | ||
| 1.93 | 111.5912162 | 178.5459459 | 189.7050676 | 200.8641892 | 205.3278378 | 212.0233108 | ||
| 1.92 | 115.1216216 | 184.1945946 | 195.7067568 | 207.2189189 | 211.8237838 | 218.7310811 | ||
| 1.91 | 118.652027 | 189.8432432 | 201.7084459 | 213.5736486 | 218.3197297 | 225.4388514 | ||
| 1.90 | 122.1824324 | 195.4918919 | 207.7101351 | 219.9283784 | 224.8156757 | 232.1466216 | ||
| 1.89 | 125.7128378 | 201.1405405 | 213.7118243 | 226.2831081 | 231.3116216 | 238.8543919 | ||
| 1.88 | 129.2432432 | 206.7891892 | 219.7135135 | 232.6378378 | 237.8075676 | 245.5621622 | ||
| 1.87 | 132.7736486 | 212.4378378 | 225.7152027 | 238.9925676 | 244.3035135 | 252.2699324 | ||
| 1.86 | 136.3040541 | 218.0864865 | 231.7168919 | 245.3472973 | 250.7994595 | 258.9777027 | ||
| 1.85 | 139.8344595 | 223.7351351 | 237.7185811 | 251.702027 | 257.2954054 | 265.685473 | ||
| 1.84 | 143.3648649 | 229.3837838 | 243.7202703 | 258.0567568 | 263.7913514 | 272.3932432 | ||
| 1.83 | 146.8952703 | 235.0324324 | 249.7219595 | 264.4114865 | 270.2872973 | 279.1010135 | ||
| 1.82 | 150.4256757 | 240.6810811 | 255.7236486 | 270.7662162 | 276.7832432 | 285.8087838 | ||
| 1.81 | 153.9560811 | 246.3297297 | 261.7253378 | 277.1209459 | 283.2791892 | 292.5165541 | ||
| 1.80 | 157.4864865 | 251.9783784 | 267.727027 | 283.4756757 | 289.7751351 | 299.2243243 | 0.000 | 0.000 |
| 1.79 | 161.0168919 | 257.627027 | 273.7287162 | 289.8304054 | 296.2710811 | 305.9320946 | 0.010 | 0.006 |
| 1.78 | 164.5472973 | 263.2756757 | 279.7304054 | 296.1851351 | 302.767027 | 312.6398649 | 0.020 | 0.013 |
| 1.77 | 168.0777027 | 268.9243243 | 285.7320946 | 302.5398649 | 309.262973 | 319.3476351 | 0.030 | 0.019 |
| 1.76 | 171.6081081 | 274.572973 | 291.7337838 | 308.8945946 | 315.7589189 | 326.0554054 | 0.040 | 0.025 |
| 1.75 | 175.1385135 | 280.2216216 | 297.735473 | 315.2493243 | 322.2548649 | 332.7631757 | 0.050 | 0.031 |
| 1.74 | 178.6689189 | 285.8702703 | 303.7371622 | 321.6040541 | 328.7508108 | 339.4709459 | 0.060 | 0.038 |
| 1.73 | 182.1993243 | 291.5189189 | 309.7388514 | 327.9587838 | 335.2467568 | 346.1787162 | 0.070 | 0.044 |
| 1.72 | 185.7297297 | 297.1675676 | 315.7405405 | 334.3135135 | 341.7427027 | 352.8864865 | 0.080 | 0.050 |
| 1.71 | 189.2601351 | 302.8162162 | 321.7422297 | 340.6682432 | 348.2386486 | 359.5942568 | 0.090 | 0.056 |
| 1.70 | 192.7905405 | 308.4648649 | 327.7439189 | 347.022973 | 354.7345946 | 366.302027 | 0.100 | 0.063 |
| 1.69 | 196.3209459 | 314.1135135 | 333.7456081 | 353.3777027 | 361.2305405 | 373.0097973 | 0.110 | 0.069 |
| 1.68 | 199.8513514 | 319.7621622 | 339.7472973 | 359.7324324 | 367.7264865 | 379.7175676 | 0.120 | 0.075 |
| 1.67 | 203.3817568 | 325.4108108 | 345.7489865 | 366.0871622 | 374.2224324 | 386.4253378 | 0.130 | 0.081 |
| 1.66 | 206.9121622 | 331.0594595 | 351.7506757 | 372.4418919 | 380.7183784 | 393.1331081 | 0.140 | 0.088 |
| 1.65 | 210.4425676 | 336.7081081 | 357.7523649 | 378.7966216 | 387.2143243 | 399.8408784 | 0.150 | 0.094 |
| 1.64 | 213.972973 | 342.3567568 | 363.7540541 | 385.1513514 | 393.7102703 | 406.5486486 | 0.160 | 0.100 |
| 1.63 | 217.5033784 | 348.0054054 | 369.7557432 | 391.5060811 | 400.2062162 | 413.2564189 | 0.170 | 0.106 |
| 1.62 | 221.0337838 | 353.6540541 | 375.7574324 | 397.8608108 | 406.7021622 | 419.9641892 | 0.180 | 0.113 |
| 1.61 | 224.5641892 | 359.3027027 | 381.7591216 | 404.2155405 | 413.1981081 | 426.6719595 | 0.190 | 0.119 |
| 1.60 | 228.0945946 | 364.9513514 | 387.7608108 | 410.5702703 | 419.6940541 | 433.3797297 | 0.200 | 0.125 |
| 1.59 | 231.625 | 370.6 | 393.7625 | 416.925 | 426.19 | 440.0875 | 0.210 | 0.131 |
| 1.58 | 235.1554054 | 376.2486486 | 399.7641892 | 423.2797297 | 432.6859459 | 446.7952703 | 0.220 | 0.138 |
| 1.57 | 238.6858108 | 381.8972973 | 405.7658784 | 429.6344595 | 439.1818919 | 453.5030405 | 0.230 | 0.144 |
| 1.56 | 242.2162162 | 387.5459459 | 411.7675676 | 435.9891892 | 445.6778378 | 460.2108108 | 0.240 | 0.150 |
| 1.55 | 245.7466216 | 393.1945946 | 417.7692568 | 442.3439189 | 452.1737838 | 466.9185811 | 0.250 | 0.156 |
| 1.54 | 249.277027 | 398.8432432 | 423.7709459 | 448.6986486 | 458.6697297 | 473.6263514 | 0.260 | 0.163 |
| 1.53 | 252.8074324 | 404.4918919 | 429.7726351 | 455.0533784 | 465.1656757 | 480.3341216 | 0.270 | 0.169 |
| 1.52 | 256.3378378 | 410.1405405 | 435.7743243 | 461.4081081 | 471.6616216 | 487.0418919 | 0.280 | 0.175 |
| 1.51 | 259.8682432 | 415.7891892 | 441.7760135 | 467.7628378 | 478.1575676 | 493.7496622 | 0.290 | 0.181 |
| 1.50 | 263.3986486 | 421.4378378 | 447.7777027 | 474.1175676 | 484.6535135 | 500.4574324 | 0.300 | 0.188 |
| 1.49 | 266.9290541 | 427.0864865 | 453.7793919 | 480.4722973 | 491.1494595 | 507.1652027 | 0.310 | 0.194 |
| 1.48 | 270.4594595 | 432.7351351 | 459.7810811 | 486.827027 | 497.6454054 | 513.872973 | 0.320 | 0.200 |
| 1.47 | 273.9898649 | 438.3837838 | 465.7827703 | 493.1817568 | 504.1413514 | 520.5807432 | 0.330 | 0.206 |
| 1.46 | 277.5202703 | 444.0324324 | 471.7844595 | 499.5364865 | 510.6372973 | 527.2885135 | 0.340 | 0.213 |
| 1.45 | 281.0506757 | 449.6810811 | 477.7861486 | 505.8912162 | 517.1332432 | 533.9962838 | 0.350 | 0.219 |
| 1.44 | 284.5810811 | 455.3297297 | 483.7878378 | 512.2459459 | 523.6291892 | 540.7040541 | 0.360 | 0.225 |
| 1.43 | 288.1114865 | 460.9783784 | 489.789527 | 518.6006757 | 530.1251351 | 547.4118243 | 0.370 | 0.231 |
| 1.42 | 291.6418919 | 466.627027 | 495.7912162 | 524.9554054 | 536.6210811 | 554.1195946 | 0.380 | 0.238 |
| 1.41 | 295.1722973 | 472.2756757 | 501.7929054 | 531.3101351 | 543.117027 | 560.8273649 | 0.390 | 0.244 |
| 1.40 | 298.7027027 | 477.9243243 | 507.7945946 | 537.6648649 | 549.612973 | 567.5351351 | 0.400 | 0.250 |
| 1.39 | 302.2331081 | 483.572973 | 513.7962838 | 544.0195946 | 556.1089189 | 574.2429054 | 0.410 | 0.256 |
| 1.38 | 305.7635135 | 489.2216216 | 519.797973 | 550.3743243 | 562.6048649 | 580.9506757 | 0.420 | 0.263 |
| 1.37 | 309.2939189 | 494.8702703 | 525.7996622 | 556.7290541 | 569.1008108 | 587.6584459 | 0.430 | 0.269 |
| 1.36 | 312.8243243 | 500.5189189 | 531.8013514 | 563.0837838 | 575.5967568 | 594.3662162 | 0.440 | 0.275 |
| 1.35 | 316.3547297 | 506.1675676 | 537.8030405 | 569.4385135 | 582.0927027 | 601.0739865 | 0.450 | 0.281 |
| 1.34 | 319.8851351 | 511.8162162 | 543.8047297 | 575.7932432 | 588.5886486 | 607.7817568 | 0.460 | 0.288 |
| 1.33 | 323.4155405 | 517.4648649 | 549.8064189 | 582.147973 | 595.0845946 | 614.489527 | 0.470 | 0.294 |
| 1.32 | 326.9459459 | 523.1135135 | 555.8081081 | 588.5027027 | 601.5805405 | 621.1972973 | 0.480 | 0.300 |
| 1.31 | 330.4763514 | 528.7621622 | 561.8097973 | 594.8574324 | 608.0764865 | 627.9050676 | 0.490 | 0.306 |
| 1.30 | 334.0067568 | 534.4108108 | 567.8114865 | 601.2121622 | 614.5724324 | 634.6128378 | 0.500 | 0.313 |
| 1.29 | 337.5371622 | 540.0594595 | 573.8131757 | 607.5668919 | 621.0683784 | 641.3206081 | 0.510 | 0.319 |
| 1.28 | 341.0675676 | 545.7081081 | 579.8148649 | 613.9216216 | 627.5643243 | 648.0283784 | 0.520 | 0.325 |
| 1.27 | 344.597973 | 551.3567568 | 585.8165541 | 620.2763514 | 634.0602703 | 654.7361486 | 0.530 | 0.331 |
| 1.26 | 348.1283784 | 557.0054054 | 591.8182432 | 626.6310811 | 640.5562162 | 661.4439189 | 0.540 | 0.338 |
| 1.25 | 351.6587838 | 562.6540541 | 597.8199324 | 632.9858108 | 647.0521622 | 668.1516892 | 0.550 | 0.344 |
| 1.24 | 355.1891892 | 568.3027027 | 603.8216216 | 639.3405405 | 653.5481081 | 674.8594595 | 0.560 | 0.350 |
| 1.23 | 358.7195946 | 573.9513514 | 609.8233108 | 645.6952703 | 660.0440541 | 681.5672297 | 0.570 | 0.356 |
| 1.22 | 362.25 | 579.6 | 615.825 | 652.05 | 666.54 | 688.275 | 0.580 | 0.363 |
| 1.21 | 365.7804054 | 585.2486486 | 621.8266892 | 658.4047297 | 673.0359459 | 694.9827703 | 0.590 | 0.369 |
| 1.20 | 369.3108108 | 590.8972973 | 627.8283784 | 664.7594595 | 679.5318919 | 701.6905405 | 0.600 | 0.375 |