{"product_id":"tillotson-196cc-clone-reinforced-big-bore-block-72mm-modified-open-class","title":"Tillotson 196cc Clone Reinforced Big Bore Block - 72mm - Modified\/Open Class","description":"\u003cp\u003ePushing the absolute limits of 196cc clone engines demands high-caliber racing parts that won't fracture under extreme cylinder pressures. The Tillotson 72mm Reinforced Big Bore Block is engineered specifically to handle the intense thermal and mechanical stress of high-RPM competitive karting. By providing the critical displacement needed for that extra burst of speed on tight tracks, this block prevents the catastrophic mid-race failures common with standard, thin-walled castings.\u003c\/p\u003e\u003ch2\u003eUnmatched Durability for High-Stress Racing Parts\u003c\/h2\u003e\u003cp\u003eUnlike standard blocks that flex or crack when subjected to the extreme torque of a high-performance belt drive system, this reinforced Tillotson unit utilizes high-grade alloy materials and thicker cylinder walls. While some racers focus entirely on bolt-on upgrades like an lo206 carburetor kit, true horsepower and reliability start at the short block. This rigid foundation allows professional engine builders to experiment with aggressive cam profiles and high-compression pistons without fear of structural compromise.\u003c\/p\u003e\u003ch2\u003ePrecision Engineering for Parts Mini and Kart Builders\u003c\/h2\u003e\u003cp\u003eWhether you are in the pits dialing in your chassis with precision tools tire gauges, or swapping out parts mini bike and kart builders rely on for outlaw classes, installation is straightforward. Mechanics familiar with clone engines will appreciate the exact machining tolerances. Note that it is precision-machined for seamless integration with JF168-1500 crankcase covers, as no separate OEM Tillotson cover exists yet. Every millimeter of this block has been optimized for the podium. Track tests consistently demonstrate that it handles aggressive shifts and high loads significantly better than its stock counterparts.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e72mm Big Bore Capacity:\u003c\/strong\u003e Maximizes displacement for 196cc clone architectures to deliver explosive corner-exit acceleration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReinforced Casting:\u003c\/strong\u003e Thicker cylinder walls and critical stress-point gusseting prevent cracking under high compression.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless Integration:\u003c\/strong\u003e Precision-machined to mate perfectly with JF168-1500 crankcase covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-RPM Stability:\u003c\/strong\u003e Engineered to maintain structural integrity during sustained high-rev track sessions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Efficiency:\u003c\/strong\u003e Superior alloy composition dissipates heat faster than standard OEM blocks, keeping temps in check.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Foundation:\u003c\/strong\u003e The ideal base for aggressive cam profiles, oversized valves, and high-flow carb setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExact OEM Specs:\u003c\/strong\u003e Tillotson Part #138220002 ensures authentic, race-proven tolerances for professional engine builders.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this block compatible with my stock 196cc clone engine components?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e While this block is designed for 196cc clone architectures, it is a big-bore unit (72mm). You will need to ensure your piston, rings, and head gasket are sized specifically for the 72mm bore to ensure proper compression and sealing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do I need a special crankcase cover for this block?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, this block is precision-machined to mate specifically with the JF168-1500 crankcase cover. Please ensure you have this specific cover for a seamless installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this block for stock class racing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This block is engineered for Modified and Open classes. Because it increases displacement and features reinforced casting for high-RPM stress, it typically exceeds the technical specifications for strictly regulated \"stock\" clone classes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What maintenance is required for a reinforced big-bore block?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Because this block is designed for high-stress, high-RPM environments, we recommend regular inspections of the cylinder walls and head gasket seal. Always use high-quality lubricants and ensure your cooling setup is optimized to handle the increased thermal output of a big-bore engine.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/tpp-72mmpkit-tillotson-72mm-piston-kit-tpp-72mmpkit\"\u003eComplete Tillotson 72mm Piston Kit with Rings and Pin\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/tpp-72mmrs-ring-set-72mm-tpp-72mmrs\"\u003eTillotson 196cc Clone 72mm Piston Ring Set - OEM Replacement - Modified Class\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/tpp-frhg72-tillotson-fire-ring-head-gasket-72mm-bore-tpp-frhg72\"\u003eTillotson Fire Ring Head Gasket for 72mm Bore Engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/tpp-72mmwp-wrist-pin-for-72mm-piston-tpp-72mmwp\"\u003eTillotson 72mm Piston Wrist Pin - 138220006 - 196cc\/212cc Clone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/tpp-lk-156-throttle-linkage-kit-for-72mm-block-lk-156\"\u003eTillotson LK-156 Throttle Linkage Kit - 72mm \u0026amp; 76mm Blocks - Stock Appearing\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SwiftKarting","offers":[{"title":"Default Title","offer_id":48157924065539,"sku":"TPP-72MMBLOCK","price":188.49,"currency_code":"USD","in_stock":true}],"url":"https:\/\/phishstonesproducts.myshopify.com\/products\/tillotson-196cc-clone-reinforced-big-bore-block-72mm-modified-open-class","provider":"PhishStones Products","version":"1.0","type":"link"}