ATI Damper – 7.425in – Steel LW – 8 & 4 Grv – LS1-2-3-6 & L76 – 97-13 – Y Body & SS & G8 – 3 Ring

SKU: ATI917345 | UPC: 800157031748 ATI Damper 7.425in Steel LW 8 & 4 Groove LS1-2-3-6 L76 04-09 GTO Trailblazer SS G8 3 Ring This ATI crankshaft damper provides precise harmonic control for LS1 LS2 LS3 LS6 and L76 engines in 2004-2006 Pontiac GTO 2006-2009 Chevrolet Trailblazer SS and 2008-2009 Pontiac G8 GT models. The 7.425 inch lightweight steel construction with 8 and 4 grooves matches OEM pulley specifications for direct bolt-on fit and accessory drive compatibility. It absorbs crankshaft vibrations to enable higher RPM operation reliable power delivery and extended engine life. Key Features Lightweight Steel Build: Reduces rotational mass for quicker engine revs improved throttle response and strength under forced induction or elevated horsepower levels. 7.425in Outer Diameter: Matches factory crank pulley dimensions for accurate belt tension accessory alignment and full drive system operation on LS-equipped vehicles. 8 & 4 Groove Pulley: Supports OEM serpentine belts and aftermarket upgrades through main drive and jackshaft grooves for versatile power handling. 3-Ring Seal Design: Secures damping elastomer with three rings to prevent oil contamination and deliver consistent vibration damping across high mileage. SFI 18.1 Certification: Confirms structural integrity for drag racing and street driving to guard against harmonic damage at high speeds. Product Notes Inspect crank snout and threads for damage prior to install to avoid imbalance issues. Re-torque damper bolt after 100 miles of operation. Ships fully assembled with protective coating intact. Installation Notes Professional installation recommended. Includes Grade 12.9 crank bolt torque to 240 ft-lbs then 135 degrees turn. Aligns with factory timing marks uses OEM woodruff key position. This Part Fits Year Make Model Submodel 2004-2006 Pontiac GTO All 2006-2009 Chevrolet Trailblazer SS 2008-2009 Pontiac G8 GT Why Choose ATI? Proven leader in SFI-certified dampers for over 50 years. Engineered for LS engines in racing and street applications. Machined in USA from billet steel for exact balance and fit. Frequently Asked Questions Q: Will this damper fit a 2005 Pontiac GTO with LS2 engine? A: Yes it bolts directly to 2004-2006 GTO LS1 or LS2 cranks with matching 7.425in pulley specs. Q: What shell material and inner construction? A: Lightweight steel outer shell bonds to high-tension elastomer inner ring for vibration absorption. Q: What warranty coverage applies? A: One year unlimited mileage street warranty two years competition with proper install and maintenance. Shipping & Handling Method: UPS Ground Availability: In stock – ships same or next business day Packaging: Protective foam-lined box 12 x 12 x 6 inches Weight: 14.2 lbs product 16 lbs shipping Reviews There are no reviews yet. Be the first to review “ATI Damper – 7.425in – Steel LW – 8 & 4 Grv – LS1-2-3-6 & L76 – 97-13 – Y Body & SS & G8 – 3 Ring” Cancel replyYour email address will not be published. Required fields are marked *Your rating * Rate… Perfect Good Average Not that bad Very poor Your review *Name * Email * Save my name, email, and website in this browser for the next time I comment.