Home › Cams › Chevrolet Performance Chevrolet Performance Camshaft - LS9 - 12638427
Chevrolet Performance Chevrolet Performance Camshaft - LS9 - 12638427 cam: specs, price & owner results
211/230 .562"/.562" 122.5 LSA
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| Spec | Value |
|---|---|
| Part number | 12638427 |
| Engine | LS9 |
| Application | SUPERCHARGED - ROOTS |
| Style | HYDRAULIC ROLLER |
| Cam bolt | THREE BOLT |
| Duration @ .050 (int/exh) | 211.0 / 230.0 |
| Lift (int/exh) | 0.562 / 0.562 |
| LSA | 122.5 |
| Price | $319.99 (Brian Tooley Racing, 2026-09-29) |
Check current price at Brian Tooley Racing
Tuning checklist
- Tune: Aftermarket cams need idle, fuel, spark and torque-model changes.
- Valve springs: Upgraded valve springs required
- Cam gear: Three bolt
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.
27reports
414median rear-wheel hp, NA (n=1; low-confidence reports excluded)
414–414range, same basis
| Engine | Heads | HP | TQ | Measured at | Adder | Confidence | Thread |
|---|---|---|---|---|---|---|---|
| 2003 LM4 (refreshed stock bottom end, ARP rod bolts, Hellfire rings) | 744 | Wheel | On3 76 mm turbo (ported exhaust housing) | High | ls1tech.com | ||
| LS2 | LS3 | 735 | 648 | Not stated | supercharger | High | corvetteforum.com |
| 5.3L LM7 | 243 Corvette head + 799 truck head | 711 | Wheel | turbo | Medium | ls1tech.com | |
| 5.3 (under new management) | 243 Corvette head + 799 truck head | 711 | Wheel | turbo (XT80mm) | High | ls1tech | |
| Hybrid 339 ci (LS3 block + LR4 4.8L crank) | Trick Flow GenX 255 (LS3) | 701 | 598 | Crank | Precision 76mm single turbo | High | motortrend |
| LS2 (Thompson Motorsports forged) | LS3 heads milled 0.040 in by Hood's Machine Shop | 700 | 680 | Wheel | twin turbo | High | gm-efi.com |
| 6.2L LS | 664 | Not stated | supercharged (Kenne Bell) | Medium | motortrend.com | ||
| LS3 crate (stock) | 643 | 568 | Wheel | supercharged (Magnuson TVS 2300, ported) | High | lateral-g.net | |
| LS3 | stock LS3 | 643 | 568 | Wheel | Magnuson TVS2300 supercharger | High | pro-touring.com |
| LSA | stock heads | 618 | 618 | Wheel | supercharger | Medium | forum.hptuners.com |
| 5.3L LM7 (Strictly Performance boost-ready, supercharged) | ported 706 (Katech) | 606 | 523 | Crank | Vortech V3 SCI centrifugal supercharger, non-intercooled (3.60 in pulley) | High | hotrod.com |
| LS3 | 590 | 510 | Wheel | supercharger | High | ssforums.com | |
| 5.3L LM7 (junkyard, 200K+ miles) | 581 | 504 | Crank | Vortech V3 SCI centrifugal supercharger, non-intercooled (3.60 in pulley) | High | hotrod.com | |
| LY6 6.0L V8 (stock) | 580 | Not stated | LSA supercharger | Medium | ls1tech.com | ||
| stock 5.3 | 572 | 451 | Wheel | twin turbos (CX Racing GT45) | High | ls1tech | |
| 477 | Wheel | ProCharger P1 supercharger | Medium | performancetrucks.net | |||
| 5.3L LS | 477 | Wheel | supercharger | Medium | performancetrucks.net | ||
| LY6 6.0 | stock LY6 (LS3-style) | 475 | 443 | Crank | NA | High | hotrod.com |
| 5.3L LM7 (Strictly Performance boost-ready, NA) | ported 706 (Katech) | 428 | 400 | Crank | NA | High | hotrod.com |
| Strictly Performance 5.3L (stock iron block/crank, Gen IV rods, hard-anodized flat-top cast pistons) | Katech-ported 706 (mildly ported) | 428 | 400 | Not stated | NA | High | onallcylinders |
| LM7 5.3 | stock 5.3L | 420 | 393 | Not stated | NA | High | motortrend.com |
| LS (LM7 5.3L test engine) | stock 5.3L | 420 | 393 | Crank | NA | High | motortrend |
| LM7 5.3L | stock 5.3L heads | 419 | 394 | Crank | NA | High | onallcylinders |
| L76 6.0 | 416 | 376 | Not stated | NA | Medium | forum.hptuners.com | |
| 6.2L | stock, milled .025 | 414 | 406 | Wheel | NA | High | dfwmustangs.net |
Sources
- DOD, AFM, And DFM Deletes: A Q&A With Michigan Motorsports — LSX Magazine
- Gwatneyperformance — Gwatneyperformance