The Enginetech HB230 is a replacement Torque-to-Yield (TTY) cylinder head bolt set for 2004-2009 Buick/Cadillac/Chevrolet 5.3L/5.7L/4.8L engines.
Important Notes
- Two sets required per engine - one set per cylinder head.
- Engines w/ 2nd design bolts of 2 different lengths
Specifications
| Part Number | HB230 |
| Product Type | Torque-to-Yield (TTY) Head Bolt Set |
| Bolt Type | Single-use TTY - do not reuse |
| Cross-References | FEL-PRO:ES72220 |
Vehicle Fitment
- 2004 Buick Rainier 5.3L 325ci V8 OHV [VIN:P]
- 2004 Chevrolet Corvette 5.7L 350ci V8 OHV [VIN:G]
- 2004 Chevrolet Corvette 5.7L 350ci V8 OHV [VIN:S]
- 2004 Chevrolet SSR 5.3L 325ci V8 OHV [VIN:P]
- 2004 Chevrolet Trailblazer EXT 5.3L 325ci V8 OHV [VIN:P]
- 2004 GMC Envoy XL 5.3L 325ci V8 OHV [VIN:P]
- 2004 GMC Envoy XUV 5.3L 325ci V8 OHV [VIN:P]
- 2004 Pontiac GTO 5.7L 350ci V8 OHV
- 2004-2005 Cadillac Escalade 5.3L 325ci V8 OHV [VIN:T]
- 2004-2005 Chevrolet Express 2500 5.3L 325ci V8 OHV [VIN:T]
- 2004-2005 GMC Savana 2500 5.3L 325ci V8 OHV [VIN:T]
- 2004-2006 Chevrolet Avalanche 1500 5.3L 325ci V8 OHV [VIN:T]
- 2004-2006 Chevrolet Express 1500 5.3L 325ci V8 OHV [VIN:T]
- 2004-2006 Chevrolet Silverado 1500 4.8L 294ci V8 OHV [VIN:V]
- 2004-2006 Chevrolet Suburban 1500 5.3L 325ci V8 OHV [VIN:T]
- 2004-2006 Chevrolet Suburban 1500 5.3L 325ci V8 OHV [VIN:Z]
- 2004-2006 Chevrolet Tahoe 4.8L 294ci V8 OHV [VIN:V]
- 2004-2006 Chevrolet Tahoe 5.3L 325ci V8 OHV [VIN:T]
- 2004-2006 Chevrolet Tahoe 5.3L 325ci V8 OHV [VIN:Z]
- 2004-2006 GMC Savana 1500 5.3L 325ci V8 OHV [VIN:T]
- 2004-2006 GMC Sierra 1500 4.8L 294ci V8 OHV [VIN:V]
- 2004-2006 GMC Sierra 1500 5.3L 325ci V8 OHV [VIN:Z]
- 2004-2006 GMC Yukon 4.8L 294ci V8 OHV [VIN:V]
- 2004-2006 GMC Yukon 5.3L 325ci V8 OHV [VIN:T]
- 2004-2006 GMC Yukon 5.3L 325ci V8 OHV [VIN:Z]
- 2004-2006 GMC Yukon XL 1500 5.3L 325ci V8 OHV [VIN:T]
- 2004-2006 GMC Yukon XL 1500 5.3L 325ci V8 OHV [VIN:Z]
- 2004-2007 Chevrolet Express 2500 4.8L 294ci V8 OHV [VIN:V]
- 2004-2007 Chevrolet Express 3500 4.8L 294ci V8 OHV [VIN:V]
- 2004-2007 GMC Savana 2500 4.8L 294ci V8 OHV [VIN:V]
- 2004-2007 GMC Savana 3500 4.8L 294ci V8 OHV [VIN:V]
- 2004-2007 Hummer H2 6.0L 364ci V8 OHV [VIN:U]
- 2005 GMC Envoy XUV 5.3L 325ci V8 OHV [VIN:M]
- 2005-2006 Buick Rainier 5.3L 325ci V8 OHV [VIN:M]
- 2005-2006 Chevrolet Avalanche 1500 5.3L 325ci V8 OHV [VIN:Z]
- 2005-2006 Chevrolet SSR 6.0L 364ci V8 OHV [VIN:H]
- 2005-2006 Chevrolet Silverado 1500 HD 6.0L 364ci V8 OHV [VIN:U]
- 2005-2006 GMC Envoy 5.3L 325ci V8 OHV [VIN:M]
- 2005-2006 GMC Envoy XL 5.3L 325ci V8 OHV [VIN:M]
- 2005-2006 GMC Sierra 1500 HD 6.0L 364ci V8 OHV [VIN:U]
- 2005-2006 Pontiac GTO 6.0L 364ci V8 OHV [VIN:U]
- 2005-2006 Saab 9-7x 5.3L 325ci V8 OHV [VIN:M]
- 2005-2007 Chevrolet Corvette 6.0L 364ci V8 OHV
- 2005-2008 Pontiac Grand Prix 5.3L 325ci V8 OHV [VIN:C]
- 2006 Chevrolet Trailblazer 5.3L 325ci V8 OHV [VIN:M]
- 2006-2007 Cadillac CTS 6.0L 364ci V8 OHV [VIN:U]
- 2006-2007 Chevrolet Monte Carlo 5.3L 325ci V8 OHV [VIN:C]
- 2006-2009 Chevrolet Impala 5.3L 325ci V8 OHV [VIN:C]
- 2006-2009 Chevrolet Trailblazer 6.0L 364ci V8 OHV [VIN:H]
- 2007 Chevrolet Silverado 1500 Classic 4.8L 294ci V8 OHV [VIN:V]
- 2007 GMC Sierra 1500 Classic 4.8L 294ci V8 OHV [VIN:V]
- 2007 GMC Sierra 3500 Classic 6.0L 364ci V8 OHV [VIN:U]
- 2007-2009 Chevrolet Avalanche 6.0L 364ci V8 OHV [VIN:Y]
- 2007-2009 Chevrolet Silverado 1500 4.8L 294ci V8 OHV [VIN:C]
- 2007-2009 Chevrolet Silverado 3500 HD 6.0L 364ci V8 OHV [VIN:K]
- 2007-2009 Chevrolet Tahoe 4.8L 294ci V8 OHV [VIN:C]
- 2007-2009 GMC Sierra 1500 4.8L 294ci V8 OHV [VIN:C]
- 2007-2009 GMC Yukon 4.8L 294ci V8 OHV [VIN:C]
- 2008-2009 Chevrolet Express 2500 4.8L 294ci V8 OHV [VIN:C]
- 2008-2009 Chevrolet Express 3500 4.8L 294ci V8 OHV [VIN:C]
- ...and 2 additional applications
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.
