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Lingenfelter GT21 cam: specs, price & owner results
243/259 .691"/.702" ICL 112
| Spec | Value |
|---|---|
| Engine | LS7 |
| Style | HYDRAULIC ROLLER |
| Duration @ .050 (int/exh) | 243.0 / 259.0 |
| Lift (int/exh) | 0.691 / 0.702 |
| Advance | 112.0 |
| Price | $424.95 (C8Motorsports, 2026-09-29) |
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Check current price at C8Motorsports
Tuning checklist
- Tune: Aftermarket cams need idle, fuel, spark and torque-model changes.
What owners report with this cam
Owner-reported numbers from public forum threads — exploratory, not verified. Dynos, heads, supporting mods and tunes differ; use these as a rough range, not a promise.
5reports
597median rear-wheel hp, NA (n=3; low-confidence reports excluded)
585–611range, same basis
| Engine | Heads | HP | TQ | Measured at | Adder | Confidence | Thread |
|---|---|---|---|---|---|---|---|
| LS2-based 402 stroker | LXR fully CNC-ported LS7 heads | 865 | Wheel | nitrous (200 shot) | High | ls1tech.com | |
| LQ4 iron-block 408 stroker | LXR LS7 heads (reworked) | 611 | 513 | Wheel | NA | High | ls1tech.com |
| LS7 7.0 | ported heads (Lingenfelter 660 hp package) | 597 | Wheel | NA | High | corvetteforum.com | |
| LS2-based 402 stroker | LXR fully CNC-ported LS7 heads | 585 | Wheel | NA | High | ls1tech.com | |
| LS7 | 570 | Wheel | NA | Low | corvetteforum.com |
Sources
- DOD, AFM, And DFM Deletes: A Q&A With Michigan Motorsports — LSX Magazine
- C8Motorsports — C8Motorsports