{"product_id":"mr-gasket-header-bolts-3-8-16-x-3-4-inch-hex-socket-head-black-oxide-3420g","title":"Mr. Gasket Header Bolts - 3\/8-16 x 3\/4 Inch Hex \u0026 Socket Head - Black Oxide - 3420G","description":"When installing headers you will need header bolts, factory exhaust manifold bolts won't work. These Mr. Gasket Header Bolts are Grade 5 for strength, black oxide coated, and have a hex head that is ideal for use where space is minimal - your typical header flanges. Ever had a set of headers where a socket just seemed it wouldn't fit? These bolts also have a socket head or Allen key drive in the center for just that problem.\n\nSold as a set of 12\n\nFits:\n\nAMC 290-401\n\nChevrolet Small Block 262-400\n\nChrysler Big Block 383-440 (Does not Fit 426 Hemi)\n\nPontiac 326-455\n\nOldsmobile 330-455\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMade From High Strength Steel\u003c\/li\u003e\n\u003cli\u003eCorrosion Resistant Black Coating\u003c\/li\u003e\n\u003cli\u003eHas Both Socket And Hex Heads For Ease Of Use\u003c\/li\u003e\n\u003cli\u003e12 per Package\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Specifications:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details:\u003c\/strong\u003e Fits AMC 290-401, Chevrolet Small Block 262-400, Chrysler 383-440 except Hemi, Pontiac 326-455, Oldsmobile 330-455\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Header Bolts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 3\/8-16 x 3\/4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.56\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mr. Gasket","offers":[{"title":"Default Title","offer_id":49723181301998,"sku":"MRG-3420G","price":11.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/9110\/6798\/files\/e311d5f632c712b5b7e3ca29547198011d346615.jpg?v=1791649797","url":"https:\/\/elmosspeedshop.com\/products\/mr-gasket-header-bolts-3-8-16-x-3-4-inch-hex-socket-head-black-oxide-3420g","provider":"Elmo's Speed Shop","version":"1.0","type":"link"}