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Katech Torquer LS7 cam: specs, price & owner results
220/244 .615"/.648" 110 LSA
| Spec | Value |
|---|---|
| Part number | 4727 |
| Engine | LS7 |
| Style | HYDRAULIC ROLLER |
| Duration @ .050 (int/exh) | 220/244 |
| Lift (int/exh) | .615/.648 |
| LSA | 110.0 |
| Advance | 4.0 |
Parts to install it: cam bolts to match your cam gear (1-bolt or 3-bolt); pushrods (measure for length first); timing cover gaskets (the front cover comes off to change the cam); timing chain (replace it on a high-mileage engine or with a big cam); valve springs (.660 in. lift) — stock springs aren't made for this cam. More: LS cam swap guide.
- Tune: Aftermarket cams need idle, fuel, spark and torque-model changes.
What owners report with this cam
| Engine | Heads | HP | TQ | Measured at | Adder | Confidence |
|---|---|---|---|---|---|---|
| LS7 7.0 | CNC ported LS7 heads by Advanced Induction, 65cc chambers, 11.6:1 with Diamond 11:1 forged pistons (thermal barrier coating) | 674 | 601 | Not stated | NA | High |
| LS7 7.0L (427ci) | 600 | 570 | Crank | NA | Medium | |
| LS7 7.0 | stock LS7 | 594 | 568 | Wheel | NA | Medium |
| LS7 (430 ci) | 540 | 517 | Wheel | NA | High | |
| LS7 7.0 | CNC ported heads, Ti/Mo intake valves, LS7 exhaust valves, bronze valve guides | 540 | Wheel | NA | High | |
| LS7 7.0 | Stock | 536 | 510 | Wheel | NA | High |
| LS7 7.0 (Katech package #29, Kooks headers) | 510 | 451 | Wheel | NA | High | |
| LS7 7.0 | 500 | 570 | Wheel | NA | Low | |
| LS7 7.0 | 498 | 463 | Wheel | NA | High |
Installing it? Follow our LS cam swap guide (Gen III and Gen IV, any chassis), with every torque spec you need.
Build a turn-on tune sheet for this cam → Idle and spark starting values, from real tunes. Always finish on a dyno.
New Already running this cam? Send us your tune and we'll compare it with similar builds and tunes we've reviewed. Get a Tune Report → $19, free while we launch.