{"title":"Piston Stops","description":null,"products":[{"product_id":"mr-gaskettop-dead-center-tdc-whistle","title":"Mr Gasket Top Dead Center TDC Whistle Tool 14\/18mm — Engine Timing","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Mr Gasket\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eMr Gasket engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Mr Gasket lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/XMg0S21Sjkw\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eFind Top Dead Center Effortlessly\u003c\/h2\u003e\u003cp\u003ePrecision engine timing begins with finding true Top Dead Center (TDC). The Mr Gasket TDC Whistle is an indispensable tool for any engine builder or tuner, allowing you to locate the compression stroke TDC without the need to remove the cylinder heads. This tool uses air pressure to create an audible whistle as the piston approaches the top of the cylinder, providing a simple and effective way to index your harmonic balancer or check timing marks.\u003c\/p\u003e\u003ch3\u003eTool Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCompatibility: Fits 14mm and 18mm spark plug threads\u003c\/li\u003e\n\u003cli\u003eDesign: Heads-on application for convenience\u003c\/li\u003e\n\u003cli\u003eMaterial: Durable steel construction\u003c\/li\u003e\n\u003cli\u003eFinish: Zinc plated for rust prevention\u003c\/li\u003e\n\u003cli\u003eFunction: Audible whistle signals piston position\u003c\/li\u003e\n\u003cli\u003eEase of Use: Simple screw-in design\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis whistle tool is perfect for verifying timing marks on high-performance engines where accuracy is non-negotiable. By ensuring your ignition timing is set correctly from the start, you protect your engine from detonation and maximize power output. The zinc-plated steel construction ensures that this tool will last through countless engine builds and tune-ups. It is a must-have for anyone working on classic muscle cars, race engines, or custom builds. Stop guessing your timing and start building with confidence using professional-grade tools. Discover more essential engine diagnostic and tuning equipment available at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Mr Gasket products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/mr-gasketrocker-arm-clips\" style=\"color:#0066cc;text-decoration:none;\"\u003eMr. Gasket 1015 Rocker Arm Oil Deflector Clips — For Hollow Feed Pushrods, Set of 8\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/mr-gasketchrysler-timing-cvr-seal\" style=\"color:#0066cc;text-decoration:none;\"\u003eMr. Gasket Chrysler Small Block Timing Cover Seal — Mopar Performance\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/mr-gasketsb-chevy-chrm-tmg-cvr\" style=\"color:#0066cc;text-decoration:none;\"\u003eMr. Gasket Chrome Timing Cover — Small Block Chevy \u0026amp; GM V6\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/mr-gasketreplacement-element\" style=\"color:#0066cc;text-decoration:none;\"\u003eMr Gasket 1487A Air Filter Element 9 inch Round Paper — Universal Air Cleaner\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/mr-gasketreplacement-element-2\" style=\"color:#0066cc;text-decoration:none;\"\u003eMr Gasket 1485A Air Filter Element 6.5 inch Round Paper — Universal Air Cleaner\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Mr Gasket Top Dead Center TDC Whistle Tool 14\/18mm \\u2014 Engine Timing\",\"description\":\"Accurately find Top Dead Center with the Mr Gasket TDC Whistle. Fits 14mm and 18mm spark plug holes. Get your engine timing perfect with GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Mr Gasket\"},\"mpn\":\"8016MRG\",\"url\":\"https:\/\/ggcracing.com\/products\/mr-gaskettop-dead-center-tdc-whistle\",\"offers\":{\"@type\":\"Offer\",\"price\":\"35.37\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/mr-gaskettop-dead-center-tdc-whistle\",\"sku\":\"BCZG_8016MRG\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Mr Gasket\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Mr+Gasket\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Mr Gasket Top Dead Center TDC Whistle Tool 14\/18mm \\u2014 Engine Timing\",\"item\":\"https:\/\/ggcracing.com\/products\/mr-gaskettop-dead-center-tdc-whistle\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Mr Gasket Top Dead Center TDC Whistle Tool 14\/18mm \\u2014 Engine Timing fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Mr Gasket?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Mr Gasket Top Dead Center TDC Whistle Tool 14\/18mm \\u2014 Engine Timing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Mr Gasket","offers":[{"title":"Default Title","offer_id":41068442517588,"sku":"BCZG_8016MRG","price":18.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/MRG8016MRG.jpg?v=1716774462"},{"product_id":"comp-camstop-dead-center-stop-14mm-bolt-style-heads-on","title":"COMP Cams Top Dead Center Stop 14mm Bolt Style — For Heads-On Engine Timing","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout COMP Cams\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eCOMP Cams engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full COMP Cams lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/KU4U7JDFkVI\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eCOMP Cams 14mm Top Dead Center Piston Stop\u003c\/h2\u003e\u003cp\u003ePrecision engine tuning requires exact measurements, and the COMP Cams Top Dead Center (TDC) Stop is an essential tool for any serious builder. Designed specifically for 14mm spark plug holes, this bolt-style piston stop allows you to accurately locate TDC while the cylinder heads are still installed on the engine block.\u003c\/p\u003e\u003ch3\u003eWhy Choose This TDC Tool?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeads-On Compatibility:\u003c\/strong\u003e Save time during engine assembly or cam degreeing by using this tool without removing the cylinder heads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Machined from high-quality steel with a cadmium finish for long-lasting wear resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal 14mm Fitment:\u003c\/strong\u003e Fits most standard 14mm spark plug threads, making it a versatile addition to your toolbox.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e Provides a solid physical stop to ensure your timing marks are perfectly aligned for peak engine performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are degreeing a camshaft or verifying your ignition timing, this piston stop is a must-have for achieving professional-grade results. Its robust design ensures it can handle repeated use in the garage or at the track. Get your engine timing dialed in with the right equipment from GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular COMP Cams products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/comp-camscam-gear-set-adjustable-ford-2v-4v-modular\" style=\"color:#0066cc;text-decoration:none;\"\u003eCOMP Cams Adjustable Cam Gear Set — Ford 2V\/4V Modular Engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/comp-camshrt-hyd-roller-cam-5-7l-6-1l-dodge-hemi\" style=\"color:#0066cc;text-decoration:none;\"\u003eCOMP Cams HRT Stage 2 Hydraulic Roller Cam — 5.7L\/6.1L Dodge Hemi\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/comp-camsxfi-hyd-roller-cam-5-7l-hemi-xfi268h13\" style=\"color:#0066cc;text-decoration:none;\"\u003eCOMP Cams XFI Hydraulic Roller Cam — 5.7L Dodge Hemi XFI268H13\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/comp-camssbc-cam-286h-hyd\" style=\"color:#0066cc;text-decoration:none;\"\u003eCOMP Cams Magnum 286H Hydraulic Flat Tappet Camshaft — Fits Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/comp-camstrunion-kit-gm-ls-type-rocker-arm-retro-fit\" style=\"color:#0066cc;text-decoration:none;\"\u003eCOMP Cams Trunnion Upgrade Kit — Fits GM LS-Series Rocker Arms\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"COMP Cams Top Dead Center Stop 14mm Bolt Style \\u2014 For Heads-On Engine Timing\",\"description\":\"Accurately locate Top Dead Center with the COMP Cams 14mm Piston Stop. Perfect for heads-on timing adjustments. Order your precision tool at GGCRACING today!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"COMP Cams\"},\"mpn\":\"4795CPG\",\"url\":\"https:\/\/ggcracing.com\/products\/comp-camstop-dead-center-stop-14mm-bolt-style-heads-on\",\"offers\":{\"@type\":\"Offer\",\"price\":\"15.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/comp-camstop-dead-center-stop-14mm-bolt-style-heads-on\",\"sku\":\"BDQQ_4795CPG\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"COMP Cams\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=COMP+Cams\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"COMP Cams Top Dead Center Stop 14mm Bolt Style \\u2014 For Heads-On Engine Timing\",\"item\":\"https:\/\/ggcracing.com\/products\/comp-camstop-dead-center-stop-14mm-bolt-style-heads-on\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the COMP Cams Top Dead Center Stop 14mm Bolt Style \\u2014 For Heads-On Engine Timing fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for COMP Cams?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the COMP Cams Top Dead Center Stop 14mm Bolt Style \\u2014 For Heads-On Engine Timing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"COMP Cams","offers":[{"title":"Default Title","offer_id":41121106624596,"sku":"BDQQ_4795CPG","price":16.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/COM4795.jpg?v=1717357041"},{"product_id":"proform-top-dead-center-locator","title":"Proform Top Dead Center Locator","description":"Top Dead Center Tool - Heads On - Piston Stop - 14 mm Bolt Style - Steel - Natural - Chevy - Each\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Proform","offers":[{"title":"Default Title","offer_id":41897256878164,"sku":"BCHW_66792","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PFM66792.jpg?v=1740595838"}],"url":"https:\/\/ggcracing.com\/collections\/piston-stops\/on-sale.oembed","provider":"GGCRACING INC","version":"1.0","type":"link"}