{"product_id":"speedfactory-l19-head-stud-kit-honda-b-k-series","title":"SpeedFactory L19 Head Stud Kit for Honda B \u0026 K Series","description":"\u003cul\u003e\n\u003cli\u003e260,000 psi tensile rating \u003c\/li\u003e\n\u003cli\u003eOEM bolts drop-in replacement \u003c\/li\u003e\n\u003cli\u003e Enable easy installation with the cylinder head on. \u003c\/li\u003e\n\u003cli\u003eIncludes studs, nuts, washers \u003c\/li\u003e\n\u003cli\u003eDesigned for high-boost \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- split --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#Description\"\u003eDescription\u003c\/a\u003e\u003c\/li\u003e\n \u003cli\u003e\u003ca href=\"#VehicleFitment\"\u003eVehicle Fitment\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\n\n\u003cli class=\"active\" id=\"Description\"\u003e\n\u003ch3\u003eSpeedFactory L19 Extreme Duty Head Stud Kit for Honda B and K Series\u003c\/h3\u003e\n\u003cp\u003eWhen you push serious boost into a B or K series, the factory head bolts stretch and the head starts to lift off the block, and that is how you blow a head gasket or worse. Head studs fix that by clamping the head down far harder and more evenly than bolts can. This SpeedFactory kit goes a big step past the usual upgrade: instead of the 8740 chromoly most head studs are made from, these are built for SpeedFactory by ARP out of L19, a premium quench-and-temper steel that holds a 260,000 psi tensile rating. That is roughly 25% more clamping strength than the off-the-shelf 8740 kits that top out around 190,000 to 210,000 psi. This is the head stud kit for the hardcore, high-boost drag motor that is lifting the head on everything else.\u003c\/p\u003e\n\n\u003cp\u003eThese are a direct drop-in for your OEM head bolts with no machining to the head or block, and they carry a hex broach on top so you can install them with the cylinder head already on the car if you need to. The kit comes complete with the L19 studs, nuts, washers, ARP assembly lubricant, and torque instructions. You will want a 9\/16 inch 12-point socket for the nuts. The fitment covers the B and K series family, the B16A, B18C, B20\/VTEC and LS\/VTEC builds, and the K20 and K24.\u003c\/p\u003e\n\n\u003ch3\u003eRead this first: L19 is a race material, not a street fastener\u003c\/h3\u003e\n\u003cp\u003eThis is the most important thing to understand before you buy, and it is the part nobody tells you. L19 gets its incredible strength at a real cost: it is highly susceptible to hydrogen embrittlement and stress corrosion. In plain terms, it rusts and weakens if it is exposed to moisture, and a corroded L19 stud can fail over time. ARP is blunt about this, the studs must be kept well-oiled at all times and not exposed to moisture, and ARP even recommends wearing gloves when handling them because skin oils and contamination matter. They ship individually wrapped in wax paper for exactly this reason.\u003c\/p\u003e\n\u003cp\u003eWhat that means for you: this is a race-engine fastener for a car that gets run, maintained, and torn down, not a set-and-forget street part. If you are building a dedicated high-boost drag motor and you understand stud care, this is the strongest clamping you can buy for these engines. If you are building a street or street\/strip car that will sit through humid summers and salty winters, L19 is the wrong tool, and you want ARP2000 studs instead, which are far more corrosion-tolerant and still plenty strong for the vast majority of builds.\u003c\/p\u003e\n\n\u003ch3\u003eDo you actually need L19, or do you want ARP2000?\u003c\/h3\u003e\n\u003cp\u003eBe honest about your power level here, because this matters more than brand loyalty. ARP designed L19 for applications where inertia loads exceed what ARP2000 can clamp, that is serious drag territory, generally builds boosting past 30 psi. Below that, ARP2000 head studs (220,000 psi) hold the head down just fine on a B or K series and they do not demand the moisture-control discipline L19 does. So if your build is targeting big boost and you are chasing every bit of clamp load, L19 is the answer. If you are running moderate boost on the street or at the strip, save the money and the hassle and run ARP2000. We would rather put you in the right studs than sell you more than your build needs.\u003c\/p\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSF-02-001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eARP L19 premium alloy steel (studs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTensile strength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e260,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYield strength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200,000 to 230,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVs 8740 chromoly\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoughly 25% stronger (8740 is ~190,000 to 210,000 psi)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNuts and washers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePremium 8740 (only the stud needs L19)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstall\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDirect drop-in for OEM head bolts, no machining\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHex broach on top, installs with head on the car\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRecommended for\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh-boost builds, generally past 30 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTool needed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9\/16 in 12-point socket for the nuts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eWhat is in the kit\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eL19 head studs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eComplete set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNuts and washers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIncluded (8740)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eARP assembly lubricant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstructions with torque specs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eThis kit fits the Honda and Acura B and K series engines, B16A, B18C1, B18C5, B20\/VTEC, LS\/VTEC, K20, and K24, in the cars below. It is engine-based, so what matters is which engine is in the car.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine family\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eExamples\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eCommon cars\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB series\u003c\/td\u003e\n\u003ctd\u003eB16A, B18C1, B18C5, B20\/VTEC, LS\/VTEC\u003c\/td\u003e\n\u003ctd\u003e92-01 Civic, 94-01 Integra incl GS-R and Type R, swaps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eK series\u003c\/td\u003e\n\u003ctd\u003eK20, K24\u003c\/td\u003e\n\u003ctd\u003e02-06 RSX, 02-11 Civic Si, 04-08 TSX, 03-07 Accord, swaps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eBecause this is an engine-based part, the listed chassis are a guide. What determines fit is the engine, so if you have a B or K series swap, match the kit to the engine, not the original car.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eWhat to know before you buy\u003c\/h3\u003e\n\u003cp\u003eBeyond the L19 care requirements above, treat this like the race hardware it is. Follow ARP's torque procedure exactly and use the supplied ARP assembly lube, not motor oil, because the torque specs are calibrated to that\u003c\/p\u003e\n\u003c\/li\u003e\n\n \n\u003cli id=\"VehicleFitment\"\u003e\n \n\u003cp\u003eThis kit fits the Honda and Acura B and K series engines, B16A, B18C1, B18C5, B20\/VTEC, LS\/VTEC, K20, and K24, in the cars below. It is engine-based, so what matters is which engine is in the car.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine family\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eExamples\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eCommon cars\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB series\u003c\/td\u003e\n\u003ctd\u003eB16A, B18C1, B18C5, B20\/VTEC, LS\/VTEC\u003c\/td\u003e\n\u003ctd\u003e92-01 Civic, 94-01 Integra incl GS-R and Type R, swaps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eK series\u003c\/td\u003e\n\u003ctd\u003eK20, K24\u003c\/td\u003e\n\u003ctd\u003e02-06 RSX, 02-11 Civic Si, 04-08 TSX, 03-07 Accord, swaps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eBecause this is an engine-based part, the listed chassis are a guide. What determines fit is the engine, so if you have a B or K series swap, match the kit to the engine, not the original car.\u003c\/p\u003e \n\u003c\/li\u003e\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\u003c\/ul\u003e\n","brand":"SpeedFactory","offers":[{"title":"Default Title","offer_id":45869380141090,"sku":"SFR-02-001","price":396.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2218\/5701\/files\/SFR-02-001_th94.png?v=1782856697","url":"https:\/\/www.hybrid-racing.com\/products\/speedfactory-l19-head-stud-kit-honda-b-k-series","provider":"Hybrid Racing","version":"1.0","type":"link"}