{"title":"Spark Plug Index Washers","description":null,"products":[{"product_id":"allstar-performance-spark-plug-index-shims-14mm","title":"Allstar Performance Spark Plug Index Shims 14mm Flat Seat","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 Allstar Performance\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eAllstar Performance is America's leading circle-track racing parts manufacturer. From aluminum panels and chassis components to brake hardware, steering boxes, and oval-track shock packages — every Allstar product is born from sprint car and modified racing experience.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eOptimize Your Ignition Performance\u003c\/h2\u003e\u003cp\u003eAchieve maximum combustion efficiency with the Allstar Performance Spark Plug Index Shims. Indexing your spark plugs is a critical step in high-performance engine tuning, ensuring the electrode is perfectly positioned toward the intake valve for the best possible flame front propagation. This 14mm flat seat shim kit provides the necessary components to dial in your spark plug orientation with precision.\u003c\/p\u003e\u003ch3\u003eKit Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for 14mm flat seat spark plug applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Kit:\u003c\/strong\u003e Includes 24 shims featuring both 60 and 90-degree options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance Tuning:\u003c\/strong\u003e Allows for exact positioning of the spark plug electrode.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality Materials:\u003c\/strong\u003e Precision-engineered for a secure, leak-free seal.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIndexing your plugs can lead to improved throttle response, better fuel efficiency, and increased horsepower. This kit is a must-have for racers and performance enthusiasts who leave nothing to chance. By adjusting the shim thickness, you can fine-tune the plug position to suit your specific cylinder head configuration. Don't settle for sub-optimal ignition timing; take control of your engine's performance with these high-quality indexing shims. Find all your essential engine tuning accessories 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 Allstar Performance 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\/asphalt-tire-book\" style=\"color:#0066cc;text-decoration:none;\"\u003eAllstar Performance Asphalt Tire Setup Log Book — 50 Sheet Pad\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/circle-track-set-up-book\" style=\"color:#0066cc;text-decoration:none;\"\u003eAllstar Performance Circle Track Set-Up Book - Chassis Setup Chart\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/tire-log-decals-8pk\" style=\"color:#0066cc;text-decoration:none;\"\u003eAllstar Performance Tire Log Decals — 8 Pack Information Stickers\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/tire-log-decals-40pk\" style=\"color:#0066cc;text-decoration:none;\"\u003eAllstar Performance Tire Log Decals — 40 Pack Bulk Information Stickers\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/tire-spoon-24in-straight-w-round-end\" style=\"color:#0066cc;text-decoration:none;\"\u003eAllstar Performance 24in Straight Tire Spoon w\/ Round End — Steel\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\":\"Allstar Performance Spark Plug Index Shims 14mm Flat Seat\",\"description\":\"Optimize your ignition timing with Allstar Performance 14mm Spark Plug Index Shims. Set of 24 for precision tuning. Available now at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Allstar Performance\"},\"mpn\":\"ALL96505\",\"url\":\"https:\/\/ggcracing.com\/products\/allstar-performance-spark-plug-index-shims-14mm\",\"offers\":{\"@type\":\"Offer\",\"price\":\"21.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/allstar-performance-spark-plug-index-shims-14mm\",\"sku\":\"DNLF_ALL96505\"}}\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\":\"Allstar Performance\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Allstar+Performance\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Allstar Performance Spark Plug Index Shims 14mm Flat Seat\",\"item\":\"https:\/\/ggcracing.com\/products\/allstar-performance-spark-plug-index-shims-14mm\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Allstar Performance Spark Plug Index Shims 14mm Flat Seat 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 Allstar Performance?\",\"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 Allstar Performance Spark Plug Index Shims 14mm Flat Seat?\",\"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":"Allstar Performance","offers":[{"title":"Default Title","offer_id":41351391248468,"sku":"DNLF_ALL96505","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/ALL96505.jpg?v=1719185967"},{"product_id":"allstar-performance-spark-plug-index-shims-14mm-small-o-d","title":"Allstar Performance Spark Plug Index Shims 14mm Small O.D.","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 Allstar Performance\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eAllstar Performance is America's leading circle-track racing parts manufacturer. From aluminum panels and chassis components to brake hardware, steering boxes, and oval-track shock packages — every Allstar product is born from sprint car and modified racing experience.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003ePrecision Indexing for ALL-PRO Heads\u003c\/h2\u003e\u003cp\u003eWhen running specialized cylinder heads like ALL-PRO, standard spark plug shims may not provide the clearance or fitment you need. The Allstar Performance 14mm Small O.D. Spark Plug Index Shims are specifically designed to accommodate these unique head configurations. Proper indexing ensures that your spark plug electrode is perfectly oriented to maximize combustion efficiency and power output.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall O.D. Design:\u003c\/strong\u003e Specifically engineered for ALL-PRO cylinder heads and other restricted-space applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Set:\u003c\/strong\u003e Includes 24 shims with 60 and 90-degree indexing options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Fit:\u003c\/strong\u003e Ensures a tight, reliable seal for 14mm flat seat spark plugs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance Advantage:\u003c\/strong\u003e Enables exact electrode positioning for optimal flame travel.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIndexing your spark plugs is a professional-grade tuning technique that can significantly impact engine performance. By ensuring the spark plug gap is oriented correctly, you promote a cleaner, more complete burn. This kit provides the variety of thicknesses required to achieve perfect indexing on every cylinder. Whether you are building a drag car or a high-performance street machine, these shims are an essential component of your tuning process. Elevate your engine's potential with high-quality components 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 Allstar Performance 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\/asphalt-tire-book\" style=\"color:#0066cc;text-decoration:none;\"\u003eAllstar Performance Asphalt Tire Setup Log Book — 50 Sheet Pad\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/circle-track-set-up-book\" style=\"color:#0066cc;text-decoration:none;\"\u003eAllstar Performance Circle Track Set-Up Book - Chassis Setup Chart\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/tire-log-decals-8pk\" style=\"color:#0066cc;text-decoration:none;\"\u003eAllstar Performance Tire Log Decals — 8 Pack Information Stickers\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/tire-log-decals-40pk\" style=\"color:#0066cc;text-decoration:none;\"\u003eAllstar Performance Tire Log Decals — 40 Pack Bulk Information Stickers\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/tire-spoon-24in-straight-w-round-end\" style=\"color:#0066cc;text-decoration:none;\"\u003eAllstar Performance 24in Straight Tire Spoon w\/ Round End — Steel\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\":\"Allstar Performance Spark Plug Index Shims 14mm Small O.D.\",\"description\":\"Perfectly index your spark plugs with Allstar Performance 14mm Small O.D. 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Shop the best at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Allstar Performance\"},\"mpn\":\"ALL96506\",\"url\":\"https:\/\/ggcracing.com\/products\/allstar-performance-spark-plug-index-shims-14mm-small-o-d\",\"offers\":{\"@type\":\"Offer\",\"price\":\"21.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/allstar-performance-spark-plug-index-shims-14mm-small-o-d\",\"sku\":\"DNLF_ALL96506\"}}\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\":\"Allstar Performance\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Allstar+Performance\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Allstar Performance Spark Plug Index Shims 14mm Small O.D.\",\"item\":\"https:\/\/ggcracing.com\/products\/allstar-performance-spark-plug-index-shims-14mm-small-o-d\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Allstar Performance Spark Plug Index Shims 14mm Small O.D. 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 Allstar Performance?\",\"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 Allstar Performance Spark Plug Index Shims 14mm Small O.D.?\",\"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":"Allstar Performance","offers":[{"title":"Default Title","offer_id":41351391510612,"sku":"DNLF_ALL96506","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/ALL96506.jpg?v=1719185977"},{"product_id":"moroso-spark-plug-index-washers-tapered-seat","title":"Moroso Spark Plug Index Washers Tapered Seat","description":"Spark Plug Washer - Indexing - 14 mm Tapered Seat - 0.010 in \/ 0.021 in \/ 0.032 in Thick - Set of 30\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Moroso","offers":[{"title":"Default Title","offer_id":41953491714132,"sku":"BFNB_71900","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/MOR71900.jpg?v=1742625780"},{"product_id":"moroso-spark-plug-index-washers-flat-seat","title":"Moroso Spark Plug Index Washers Flat Seat","description":"Spark Plug Washer - Indexing - 14 mm Flat Seat - 0.043 in \/ 0.050 in \/ 0.064 in Thick - Set of 30\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Moroso","offers":[{"title":"Default Title","offer_id":41953492107348,"sku":"BFNB_71910","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/MOR71910.jpg?v=1742625789"}],"url":"https:\/\/ggcracing.com\/collections\/spark-plug-index-washers\/on-sale.oembed","provider":"GGCRACING INC","version":"1.0","type":"link"}