{"product_id":"brian-crower-brcbc6134-proh625-connecting-rods-4b11t-evo-x","title":"Brian Crower Connecting Rods - Mitsubishi 4B11T Evolution X - 5.656 - BC625+ w\/ARP Custom Age 625+ F","description":"\u003ch4\u003eAerospace-Grade H-Beam Connecting Rods for High-Boost Mitsubishi 4B11T Evo X Builds\u003c\/h4\u003e\u003cp\u003eThe Brian Crower BRCBC6134 ProH625+ connecting rods are purpose-built for the 2008-2015 Mitsubishi Lancer Evolution X 4B11T engine. Manufactured from aerospace-grade 4340 chromoly steel with a precision CNC-machined H-beam profile, the BRCBC6134 is designed to handle the extreme rod loads of high-boost, high-RPM, and nitrous applications well beyond the factory rod's limits. Paired with ARP Custom Age 625+ fasteners rated at 280,000 psi tensile strength, these rods are capable of sustaining 250+ horsepower per cylinder reliably.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAerospace-grade 4340 chromoly steel H-beam construction\u003c\/li\u003e\n\u003cli\u003eCNC-machined and micropolished surface finish for maximum fatigue resistance\u003c\/li\u003e\n\u003cli\u003eARP Custom Age 625+ rod bolts rated to 280,000 psi tensile strength\u003c\/li\u003e\n\u003cli\u003eAluminum, silicone bronze pin bushings, finish-honed to exacting tolerances\u003c\/li\u003e\n\u003cli\u003e100% Rockwell hardness checked and individually checked for straightness\u003c\/li\u003e\n\u003cli\u003e5.659-inch center-to-center length specific to 4B11T Evo X engine geometry\u003c\/li\u003e\n\u003cli\u003eRated 250+ horsepower per cylinder for boost, nitrous, and high-RPM applications\u003c\/li\u003e\n\u003cli\u003ePremium 6AL4V titanium retainers and super-clean chrome silicon spring wire\u003c\/li\u003e\n\u003cli\u003eSold as a set of 4 rods with fasteners included\u003c\/li\u003e\n\u003cli\u003eMade in USA by Brian Crower\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFitment\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008-2015\u003c\/td\u003e\n\u003ctd\u003eMitsubishi\u003c\/td\u003e\n\u003ctd\u003eLancer Evolution X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eBRCBC6134\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBrian Crower\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Application\u003c\/td\u003e\n\u003ctd\u003eMitsubishi 4B11T (Evo X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRod Style\u003c\/td\u003e\n\u003ctd\u003eH-Beam ProH625+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e4340 Chromoly Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFastener\u003c\/td\u003e\n\u003ctd\u003eARP Custom Age 625+ (3\/8 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCenter-to-Center Length\u003c\/td\u003e\n\u003ctd\u003e5.659 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBig End Bore\u003c\/td\u003e\n\u003ctd\u003e2.165 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBig End Width\u003c\/td\u003e\n\u003ctd\u003e0.861 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePin End Bore\u003c\/td\u003e\n\u003ctd\u003e0.905 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePin End Width\u003c\/td\u003e\n\u003ctd\u003e0.900 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e582 grams each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRod Bolt Torque Spec\u003c\/td\u003e\n\u003ctd\u003e65-70 ft-lbs (3\/8 in. ARP 625+)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003eSet of 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Manufacture\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e4x Brian Crower BRCBC6134 H-beam connecting rods\u003c\/li\u003e\n\u003cli\u003eARP Custom Age 625+ rod bolts (pre-installed)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eAbout Brian Crower\u003c\/h4\u003e\u003cp\u003eBrian Crower has been engineering high-performance engine components from their San Diego, California facility for over 30 years. Their ProH625+ connecting rod series represents the top of their rod lineup, combining aerospace-grade materials with the most capable fastener available from ARP. Brian Crower BRCBC6134 rods are used by professional drag racers, circuit racers, and serious street builds worldwide.\u003c\/p\u003e\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\u003cstrong\u003eWhat horsepower can the BRCBC6134 Brian Crower Evo X rods handle?\u003c\/strong\u003e\u003cp\u003eBrian Crower rates the BRCBC6134 ProH625+ rods at 250+ horsepower per cylinder, which equates to over 1,000 horsepower total for a 4-cylinder application. Real-world builds regularly run 600-800 whp on these rods with appropriate supporting modifications.\u003c\/p\u003e\u003cstrong\u003eWhat makes ARP Custom Age 625+ fasteners better than standard ARP hardware?\u003c\/strong\u003e\u003cp\u003eARP Custom Age 625+ fasteners are rated to 280,000 psi tensile strength, which is significantly higher than standard ARP L19 or 8740 hardware. The Custom Age 625+ alloy maintains superior clamping load at high temperatures, making it the preferred fastener for turbo applications where heat cycling is constant.\u003c\/p\u003e\u003cstrong\u003eWhat is the torque specification for the BRCBC6134 rod bolts?\u003c\/strong\u003e\u003cp\u003eBrian Crower specifies 65-70 ft-lbs for the 3\/8-inch ARP Custom Age 625+ fasteners on the BRCBC6134. Always use ARP moly assembly lube on the threads and under the bolt head when setting torque. Never substitute generic torque values for ARP 625+ hardware.\u003c\/p\u003e\u003cstrong\u003eDo I need to resize the big ends on BRCBC6134 rods after honing?\u003c\/strong\u003e\u003cp\u003eBrian Crower rods arrive finish-honed to spec. However, it is standard practice to have the big ends resized by a machine shop after installing new rod bolts and before final assembly. This ensures the bore is perfectly round after bolt pre-load, which is critical for bearing clearance and longevity.\u003c\/p\u003e\u003cstrong\u003eAre the BRCBC6134 rods compatible with stroker crankshafts for the 4B11?\u003c\/strong\u003e\u003cp\u003eYes. The BRCBC6134 at 5.659-inch center-to-center is commonly used in 4B11T stroker kits. Brian Crower's own stroker kit (BC0138) uses the BC6134\/BRCBC6134 rod paired with a 98mm stroke billet crank, making it a proven combination for 2.5L Evo X builds.\u003c\/p\u003e\u003cstrong\u003eWhat pin bushings do the BRCBC6134 rods use?\u003c\/strong\u003e\u003cp\u003eThe BRCBC6134 uses aluminum\/silicone\/bronze composite pin bushings that are finish-honed to exact pin bore tolerances. This bushing design provides excellent wear resistance and heat dissipation for full-floating piston pin setups common in high-performance 4B11T builds.\u003c\/p\u003e\u003cstrong\u003eDo BRCBC6134 rods require any special break-in procedure?\u003c\/strong\u003e\u003cp\u003eThere is no dedicated rod-specific break-in, but the full engine should be broken in per standard performance engine build procedure: vary RPM during the first heat cycle, avoid sustained high-RPM or high-boost operation for the first 500 miles, and perform an oil change after the first heat cycle to remove any assembly debris.\u003c\/p\u003e\u003cstrong\u003eCan the BRCBC6134 rods be used in a stock-block 4B11T at moderate boost?\u003c\/strong\u003e\u003cp\u003eYes. The BRCBC6134 is an excellent choice for stock-block 4B11T builds running 400-600 whp. The factory block can support this power level with the right combination of rod, piston, headgasket, and tune, and the BRCBC6134 is well overbuilt for these power targets, providing significant safety margin over OEM rods.\u003c\/p\u003e\u003ch4\u003eInstallation Overview\u003c\/h4\u003e\u003col\u003e\n\u003cli\u003eDisassemble the 4B11T engine, remove the crankshaft and clean all journal surfaces\u003c\/li\u003e\n\u003cli\u003eInspect and resize big end bores after installing 625+ bolts to ensure roundness\u003c\/li\u003e\n\u003cli\u003eInstall piston pins into the rods using a press or pin-fit tool, confirming full-float clearance\u003c\/li\u003e\n\u003cli\u003eApply assembly lube to rod bearings, wrist pin, and ARP 625+ bolt threads and head contact surfaces\u003c\/li\u003e\n\u003cli\u003eInstall rod and piston assemblies onto the crankshaft, confirm bearing clearance with Plastigauge\u003c\/li\u003e\n\u003cli\u003eTorque ARP Custom Age 625+ rod bolts to 65-70 ft-lbs per Brian Crower specification\u003c\/li\u003e\n\u003cli\u003eRotate crankshaft by hand to verify no binding, check side clearance on each rod\u003c\/li\u003e\n\u003cli\u003eComplete engine assembly, prime oiling system before first start\u003c\/li\u003e\n\u003cli\u003eBreak in engine with varied RPM cycles, avoid sustained boost for first 500 miles\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.\u003c\/p\u003e","brand":"Brian Crower","offers":[{"title":"Default Title","offer_id":46032459399247,"sku":"BRCBC6134","price":828.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/brian-crower-brcbc6134-4b11t-evo-x-connecting-rods.png?v=1783614403","url":"https:\/\/www.blackopsautoworks.com\/products\/brian-crower-brcbc6134-proh625-connecting-rods-4b11t-evo-x","provider":"Black Ops Auto Works","version":"1.0","type":"link"}