These boot protectors are made from a high temperature resistant glass fiber material and treated with a proprietary coating, They provide spark plug boot and wire protection from extreme under hood heat.<br> Double-wall construction for added durability<br> Helps prevent burn-through, hardening and cracking of boots<br> Installs in seconds<br> Universal-fits most straight or angled boots<br> Withstands 1200°F direct continuous heat<br> Non-flammable & protects against chemicals & resists water<br> Package includes:<br> 8 X Boot Heat Sleeve Protector Cover<br> Insulterm Spark Plug Wire Sleeves Can Rest Directly On Hot Headers And Other Engine Components Without Burning,Melting Or Becoming Brittle<br> Fits Most Hot Rods And Classics Engines, Replacement For GM, Replacement For Chevy, Replacement For GMC, Replacement For OLDS, Replacement For CADILLAC, Replacement For PONTIAC, Replacement For Buick, Replacement For Ford, Replacement For Mopar, Replacement For Chrysler, Replacement For Dodge,Replacement For Plymouth)<br> Replacement For 265 283 305 307 327 350 383 400 396 402 427 454 472 502 260 289 302 351W 347 352 360 390 406 427 428 429 460 351C 351M 400M 273 318 340 360 361 383 400 413 426W 440 455 330 326 ENGINES<br>