The Enginetech HB279 is a replacement Torque-to-Yield (TTY) cylinder head bolt set for 2004-2011 Buick/Cadillac/Pontiac 4.6L engines.
Important Notes
- Two sets required per engine - one set per cylinder head.
- Engines w/ 11 x 2.0 x 117mm bolts
Specifications
| Part Number | HB279 |
| Product Type | Torque-to-Yield (TTY) Head Bolt Set |
| Bolt Type | Single-use TTY - do not reuse |
| Cross-References | FEL-PRO:ES72217, Victor Reinz:GS3597, MAHLE:GS33597 |
Vehicle Fitment
- 2004 Cadillac Seville 4.6L 281ci V8 DOHC [VIN:Y]
- 2004-2005 Cadillac DeVille 4.6L 281ci V8 DOHC [VIN:9]
- 2004-2005 Cadillac DeVille 4.6L 281ci V8 DOHC [VIN:Y]
- 2004-2005 Pontiac Bonneville 4.6L 281ci V8 DOHC [VIN:Y]
- 2004-2009 Cadillac SRX 4.6L 281ci V8 DOHC [VIN:A]
- 2004-2009 Cadillac XLR 4.6L 281ci V8 DOHC [VIN:A]
- 2005-2010 Cadillac STS 4.6L 281ci V8 DOHC [VIN:A]
- 2006-2010 Cadillac DTS 4.6L 281ci V8 DOHC [VIN:9]
- 2006-2010 Cadillac DTS 4.6L 281ci V8 DOHC [VIN:Y]
- 2008-2010 Buick Lucerne 4.6L 281ci V8 DOHC [VIN:9]
- 2010-2011 Cadillac DTS 4.6L 281ci V8 DOHC [VIN:6]
- 2011 Buick Lucerne 4.6L 281ci V8 DOHC [VIN:S]
- 2011 Cadillac DTS 4.6L 281ci V8 DOHC [VIN:S]
Enginetech TTY (Torque-to-Yield) head bolt sets are engineered to
OEM specifications for proper cylinder head clamping force during engine rebuilds. TTY
bolts are designed for single use - they stretch plastically during torquing to achieve
precise clamp load and must never be reused. Enginetech packages head bolts in per-head
quantities for popular applications, making it straightforward to order exactly what your
engine requires. Always follow the manufacturer's torque sequence and torque angle
specification when installing TTY head bolts. Verify part fitment by year, make, model,
and engine displacement before ordering.
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
