{"product_id":"dayco-pbo81117sc10-engine-harmonic-balancer","title":"Dayco PBO81117SC10 Engine Harmonic Balancer","description":"\u003ch2\u003eOverview of Dayco SC Performance 8 Rib 10% Overdrive Harmonic Balancer\u003c\/h2\u003e\u003cp\u003eThe Dayco SC Performance 8 Rib 10% Overdrive Engine Harmonic Balancer (Part Number PBO81117SC10) is engineered for select Cadillac, Chevrolet, and Pontiac vehicles. Designed to provide precise crankshaft vibration dampening, this harmonic balancer supports engine longevity and smooth operation in models such as the Caprice, Corvette, CTS, G8, and SS.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Cadillac, Chevrolet, and Pontiac Caprice, Corvette, CTS, G8, and SS models\u003c\/li\u003e\n\u003cli\u003e9 bolt holes for secure mounting\u003c\/li\u003e\n\u003cli\u003eNeutral counterweight balance with no counterweight\u003c\/li\u003e\n\u003cli\u003eCrank bore diameter of 1.481 inches (37.60 mm)\u003c\/li\u003e\n\u003cli\u003eTwo integrated serpentine pulleys with 4 and 8 grooves respectively\u003c\/li\u003e\n\u003cli\u003eSteel outer ring for durability\u003c\/li\u003e\n\u003cli\u003eOverall outside diameter of 8.229 inches (209.00 mm)\u003c\/li\u003e\n\u003cli\u003eIncludes installation instructions; hardware not included\u003c\/li\u003e\n\u003cli\u003eTiming marks present for accurate engine timing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetails on the SC Performance 8 Rib 10% Overdrive Product Line\u003c\/h2\u003e\u003cp\u003eThe SC Performance 8 Rib 10% Overdrive line by Dayco is designed to enhance engine accessory drive efficiency by increasing pulley diameter by 10%, which can improve accessory speed and performance. This harmonic balancer integrates two serpentine pulleys with 4 and 8 grooves, supporting multiple belt configurations. The steel outer ring construction ensures strength and resistance to wear, making it suitable for performance-oriented applications in compatible GM vehicles.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications and Features\u003c\/h2\u003e\u003cp\u003eThis harmonic balancer features a neutral counterweight balance, meaning it does not add additional counterweight mass, which is ideal for engines requiring precise vibration control without altering crankshaft dynamics. The crank bore measures 1.481 inches (37.60 mm), fitting specific crankshaft sizes on select GM engines. The balancer includes two integrated serpentine pulleys: the first with 4 grooves and a diameter of 7.087 inches (180.00 mm), and the second with 8 grooves and a diameter of 8.099 inches (205.70 mm). The overall width is 3.101 inches (78.75 mm), and the nose outside diameter is 2.126 inches (54.00 mm). Timing marks are included to assist with accurate engine timing during installation.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReduces crankshaft vibration to prevent premature engine wear\u003c\/li\u003e\n\u003cli\u003eSupports accessory drive systems with dual serpentine pulleys\u003c\/li\u003e\n\u003cli\u003eImproves accessory speed with 10% overdrive pulley design\u003c\/li\u003e\n\u003cli\u003eMaintains engine timing accuracy with integrated timing marks\u003c\/li\u003e\n\u003cli\u003eCompatible with performance and stock engine setups in Cadillac, Chevrolet, and Pontiac models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation instructions are included with the harmonic balancer to guide proper mounting and alignment. Note that hardware is not included, so ensure you have the correct bolts and tools for your specific vehicle application. The 9 bolt hole configuration requires precise torque settings to secure the balancer properly. Verify crank bore size and pulley alignment during installation to maintain engine performance and accessory belt tension.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDayco manufactures this harmonic balancer with high-quality steel materials and precision engineering to meet OEM specifications. While specific warranty details are not provided here, Dayco products typically come with manufacturer-backed quality assurance. For warranty information, consult Dayco or your parts distributor.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":43391731105973,"sku":"BJTQ-PBO81117SC10","price":376.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_PBO81117SC10_Fro.jpg?v=1774729423","url":"https:\/\/www.partcatalog.com\/products\/dayco-pbo81117sc10-engine-harmonic-balancer","provider":"PartCatalog","version":"1.0","type":"link"}