{"product_id":"bentolin-harmonic-balancer-installation-tool-for-chevy-350-sbc-bbc-heat-treated-rod-thrust-bearing","title":"Bentolin Harmonic Balancer Installation Tool for Chevy 350 SBC \u0026 BBC — Heat‑Treated Rod, Thrust Bearing","description":"\u003cp\u003e\u003cstrong\u003eBentolin's 66515 harmonic balancer installation tool is a heavy‑duty installer kit designed to safely and accurately press harmonic balancers onto Chevy 350 SBC and BBC crankshafts.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen replacing or reinstalling a harmonic balancer on a small‑block Chevy (SBC) or big‑block Chevy (BBC) 350 crank, having the correct installer prevents damage to the crank snout and ensures the balancer seats squarely. This kit replaces the common 66515 tool and includes a threaded rod, nut, washers and a thrust bearing to provide a controlled, aligned press without relying on hammering or improvised methods. Made from heat‑treated steel with galvanized hardware and an aluminum washer, the tool resists corrosion and is built for repeated shop use.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this tool protect the crankshaft during installation?\u003c\/h3\u003e\n\u003cp\u003eThe Bentolin installer applies steady, centered force through the crankshaft threads so the balancer slides on evenly. Using the included thrust bearing reduces friction and heat while the nut is turned, preventing galling on the crank snout.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThreaded rod aligns through crank and balancer for straight pressure\u003c\/li\u003e\n  \u003cli\u003eThrust bearing minimizes wear and reduces turning torque\u003c\/li\u003e\n  \u003cli\u003eGalvanized nut and aluminum washer resist corrosion during use\u003c\/li\u003e\n  \u003cli\u003eHeat‑treated steel rod provides rigidity to avoid bending\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich engines and crank sizes is this kit compatible with?\u003c\/h3\u003e\n\u003cp\u003eThis installer is built to fit Chevy 350 small‑block and compatible big‑block applications that accept the same crank thread pattern. It’s intended for standard 350 SBC\/BBC crank snouts and common harmonic balancer diameters used on these engines.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for Chevy 350 SBC and BBC crankshaft threads\u003c\/li\u003e\n  \u003cli\u003eWorks with most OEM and aftermarket harmonic balancers for these engines\u003c\/li\u003e\n  \u003cli\u003eNot intended for non‑Chevy cranks or unusual thread pitches without verification\u003c\/li\u003e\n  \u003cli\u003eCheck crank thread size to confirm fit before use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat parts are included and what materials are used?\u003c\/h3\u003e\n\u003cp\u003eThe kit ships as a compact set that includes every component needed to perform the installation. Components are specified for shop durability and corrosion resistance to extend service life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1x threaded rod — heat‑treated heavy duty steel for strength\u003c\/li\u003e\n  \u003cli\u003e1x nut — galvanized steel to resist rust and bind\u003c\/li\u003e\n  \u003cli\u003e1x aluminum washer — low friction and corrosion resistant\u003c\/li\u003e\n  \u003cli\u003e1x thrust bearing — reduces friction for smooth installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I use the Bentolin 66515 installer safely and correctly?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: thread the appropriate end into the crankshaft, place the balancer, add the washer and bearing, then rotate the nut to draw the balancer on. Use steady turns and confirm the balancer remains square as it advances.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThread the rod into the crank until firmly seated\u003c\/li\u003e\n  \u003cli\u003eSlide balancer onto rod, then add thrust bearing and washer\u003c\/li\u003e\n  \u003cli\u003eTurn the nut slowly, keeping the balancer aligned and centered\u003c\/li\u003e\n  \u003cli\u003eStop at correct seating depth; verify keyway and timing marks as needed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: This Bentolin 66515 harmonic balancer installation tool is ideal for professional mechanics, performance engine builders and home restorers who work on Chevy 350 small‑block and compatible big‑block engines. If you perform balancer installs or engine rebuilds and need a reliable, reusable installer that prevents damage and speeds the job, this kit offers a rugged, shop‑ready solution without relying on improvised pullers or hammers.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this fit all Chevy 350 crankshafts?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It fits standard Chevy 350 SBC and common BBC crank thread patterns; verify your crank thread size before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I reuse the components for multiple installs?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The heat‑treated rod and galvanized hardware are built for repeated shop use with proper care.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Bentolin","offers":[{"title":"Default Title","offer_id":55166104535383,"sku":"B09WK2JS5Z","price":36.56,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/bentolin-harmonic-balancer-tool-front-view.jpg?v=1790363007","url":"https:\/\/britishgarage.co.uk\/products\/bentolin-harmonic-balancer-installation-tool-for-chevy-350-sbc-bbc-heat-treated-rod-thrust-bearing","provider":"British Garage","version":"1.0","type":"link"}