{"product_id":"smg-big-boy-drop-in-fuel-pump-for-14-silverado-sierra","title":"SMG \"Big Boy\" Drop-in Fuel Pump for 14+ Silverado\/Sierra","description":"\u003ch3 data-end=\"487\" data-start=\"405\"\u003e\u003cstrong data-end=\"487\" data-start=\"409\"\u003eSMG “Big Boy” Drop-In Low Side Fuel Pump Module – 2014+ Silverado \/ Sierra\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"799\" data-start=\"489\"\u003eMeet the ultimate OEM+ fueling upgrade for late-model GM trucks — the \u003cstrong data-end=\"602\" data-start=\"559\"\u003eSMG “Big Boy” Drop-In Fuel Pump Module.\u003c\/strong\u003e\u003cbr data-end=\"605\" data-start=\"602\"\u003eThis system bridges the gap between LT4 fueling and full standalone or auxiliary fuel systems, providing a massive increase in volume and pressure while retaining a factory-style fit and finish.\u003c\/p\u003e\n\u003chr data-end=\"804\" data-start=\"801\"\u003e\n\u003ch4 data-end=\"844\" data-start=\"806\"\u003e\u003cstrong data-end=\"844\" data-start=\"811\"\u003eFactory Fit. Race-Level Flow.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-end=\"942\" data-start=\"845\"\u003eThe Big Boy module starts with a \u003cstrong data-end=\"926\" data-start=\"878\"\u003emodified Original Equipment Style pump assembly\u003c\/strong\u003e, upgraded with:\u003c\/p\u003e\n\u003cul data-end=\"1185\" data-start=\"943\"\u003e\n\u003cli data-end=\"995\" data-start=\"943\"\u003e\n\u003cp data-end=\"995\" data-start=\"945\"\u003eA \u003cstrong data-end=\"983\" data-start=\"947\"\u003eHigh Output Walbro 535 (Hellcat)\u003c\/strong\u003e fuel pump\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1039\" data-start=\"996\"\u003e\n\u003cp data-end=\"1039\" data-start=\"998\"\u003eReinforced \u003cstrong data-end=\"1037\" data-start=\"1009\"\u003eupgraded internal wiring\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1103\" data-start=\"1040\"\u003e\n\u003cp data-end=\"1103\" data-start=\"1042\"\u003ePrecision-calibrated factory-style fuel pressure regulation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1185\" data-start=\"1104\"\u003e\n\u003cp data-end=\"1185\" data-start=\"1106\"\u003eDirect drop-in design — \u003cstrong data-end=\"1185\" data-start=\"1130\"\u003eno cutting, splicing, or tank modification required\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1185\" data-start=\"1104\"\u003e\u003cstrong data-end=\"1185\" data-start=\"1130\"\u003eNote some versions may not include a new level sender, so you will need to swap your existing level sender from your old pump to the new pump \u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1333\" data-start=\"1187\"\u003eSimply remove your OEM module, drop ours in, and update your tune for maximum results.\u003cbr data-end=\"1276\" data-start=\"1273\"\u003eNo need to alter your tank, wiring, or fuel supply lines.\u003c\/p\u003e\n\u003chr data-end=\"1338\" data-start=\"1335\"\u003e\n\u003ch4 data-end=\"1367\" data-start=\"1340\"\u003e\u003cstrong data-end=\"1367\" data-start=\"1345\"\u003ePerformance Proven\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-end=\"1591\" data-start=\"1368\"\u003eTested and validated to \u003cstrong data-end=\"1432\" data-start=\"1392\"\u003esupport 750+ wheel horsepower on E85\u003c\/strong\u003e with stock LT4 injectors, LT4 HPFP, and a 32% cam lobe.\u003cbr data-end=\"1491\" data-start=\"1488\"\u003eWith more boost, tuning refinement, and additional supporting mods, results can climb even higher.\u003c\/p\u003e\n\u003cul data-end=\"1937\" data-start=\"1593\"\u003e\n\u003cli data-end=\"1669\" data-start=\"1593\"\u003e\n\u003cp data-end=\"1669\" data-start=\"1595\"\u003eBridges the gap between \u003cstrong data-end=\"1634\" data-start=\"1619\"\u003eLT4 fueling\u003c\/strong\u003e and standalone\/auxiliary systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1753\" data-start=\"1670\"\u003e\n\u003cp data-end=\"1753\" data-start=\"1672\"\u003ePerfect when combined with an \u003cstrong data-end=\"1722\" data-start=\"1702\"\u003eSMG Aux Fuel Kit\u003c\/strong\u003e for extreme fueling capacity\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1819\" data-start=\"1754\"\u003e\n\u003cp data-end=\"1819\" data-start=\"1756\"\u003eMust-have upgrade for \u003cstrong data-end=\"1817\" data-start=\"1778\"\u003eforced induction and ethanol builds\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1937\" data-start=\"1820\"\u003e\n\u003cp data-end=\"1937\" data-start=\"1822\"\u003eIdeal pairing with \u003cstrong data-end=\"1858\" data-start=\"1841\"\u003eLT4 injectors\u003c\/strong\u003e and either the OEM or oversized LT4 HPFP for the ultimate OEM+ bolt-on setup\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1942\" data-start=\"1939\"\u003e\n\u003ch4 data-end=\"1960\" data-start=\"1944\"\u003e\u003cstrong data-end=\"1960\" data-start=\"1949\"\u003eFitment\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-end=\"2024\" data-start=\"1961\"\u003eFits \u003cstrong data-end=\"2010\" data-start=\"1966\"\u003e2014–2018 Silverado and Sierra V8 models\u003c\/strong\u003e, including:\u003c\/p\u003e\n\u003cul data-end=\"2134\" data-start=\"2025\"\u003e\n\u003cli data-end=\"2092\" data-start=\"2025\"\u003e\n\u003cp data-end=\"2092\" data-start=\"2027\"\u003eSilverado 1500 Custom \/ High Country \/ LS \/ LT \/ LTZ \/ SSV \/ WT\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2134\" data-start=\"2093\"\u003e\n\u003cp data-end=\"2134\" data-start=\"2095\"\u003eSierra 1500 Base \/ SLE \/ SLT \/ Denali\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2356\" data-start=\"2136\"\u003e\u003cstrong data-end=\"2145\" data-start=\"2136\"\u003eNote:\u003c\/strong\u003e May fit some early 2019 trucks with the previous-generation tank design — confirm with your installer before ordering.\u003cbr data-end=\"2267\" data-start=\"2264\"\u003e\u003cstrong data-end=\"2293\" data-start=\"2267\"\u003eCab selection required\u003c\/strong\u003e (Standard Cab vs. Extended\/Crew Cab) to ensure proper fitment.\u003c\/p\u003e\n\u003chr data-end=\"2361\" data-start=\"2358\"\u003e\n\u003ch4 data-end=\"2395\" data-start=\"2363\"\u003e\u003cstrong data-end=\"2395\" data-start=\"2368\"\u003eBuild Quality \u0026amp; Testing\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-end=\"2577\" data-start=\"2396\"\u003eEach Big Boy pump module is \u003cstrong data-end=\"2458\" data-start=\"2424\"\u003ehand-built and tested in Texas\u003c\/strong\u003e using in-stock OEM and better components.\u003c\/p\u003e\n\u003cp data-end=\"2577\" data-start=\"2396\"\u003eAll Pumps are fully tested and must pass our benchmarks before  prior to shipment to verify performance and integrity. That means no DOA's, every single pump we ship works as it should and we guarantee it! \u003c\/p\u003e\n\u003cul data-end=\"2790\" data-start=\"2579\"\u003e\n\u003cli data-end=\"2654\" data-start=\"2579\"\u003e\n\u003cp data-end=\"2654\" data-start=\"2581\"\u003e\u003cstrong data-end=\"2599\" data-start=\"2581\"\u003eMade to order:\u003c\/strong\u003e allow 5–7 business days for assembly before shipment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2721\" data-start=\"2655\"\u003e\n\u003cp data-end=\"2721\" data-start=\"2657\"\u003eShipping method selected at checkout only affects transit time\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2790\" data-start=\"2722\"\u003e\n\u003cp data-end=\"2790\" data-start=\"2724\"\u003eRefer to store policies for made-to-order and cancellation terms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2795\" data-start=\"2792\"\u003e\n\u003ch4 data-end=\"2832\" data-start=\"2797\"\u003e\u003cstrong data-end=\"2832\" data-start=\"2802\"\u003eTuning and Operation Notes\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-end=\"3024\" data-start=\"2833\"\u003eAll Big Boy systems \u003cstrong data-end=\"2871\" data-start=\"2853\"\u003erequire tuning\u003c\/strong\u003e to optimize fuel pressure and flow.\u003cbr data-end=\"2910\" data-start=\"2907\"\u003eWhile they can be run on stock calibrations, and will outperform the OEM module immediately, proper calibration ensures maximum benefit and reliability.\u003c\/p\u003e\n\u003cul data-end=\"3515\" data-start=\"3026\"\u003e\n\u003cli data-end=\"3059\" data-start=\"3026\"\u003e\n\u003cp data-end=\"3059\" data-start=\"3028\"\u003eUses OEM-style basket and FPR\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3161\" data-start=\"3060\"\u003e\n\u003cp data-end=\"3161\" data-start=\"3062\"\u003eGM regulators typically \u003cstrong data-end=\"3118\" data-start=\"3086\"\u003ebleed off at ~5 bar (72 psi)\u003c\/strong\u003e — exceeding this can cause pressure loss\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3262\" data-start=\"3162\"\u003e\n\u003cp data-end=\"3262\" data-start=\"3164\"\u003eCommanding \u003cstrong data-end=\"3188\" data-start=\"3175\"\u003e50–60 psi\u003c\/strong\u003e typically supports even high-power builds due to the pump’s huge volume\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3380\" data-start=\"3263\"\u003e\n\u003cp data-end=\"3380\" data-start=\"3265\"\u003eReview and adjust \u003cem data-end=\"3301\" data-start=\"3283\"\u003eDesired Pressure\u003c\/em\u003e, \u003cem data-end=\"3317\" data-start=\"3303\"\u003eMax Pressure\u003c\/em\u003e, \u003cem data-end=\"3331\" data-start=\"3319\"\u003eDuty Cycle\u003c\/em\u003e, \u003cem data-end=\"3339\" data-start=\"3333\"\u003eFSCM\u003c\/em\u003e, and \u003cem data-end=\"3366\" data-start=\"3345\"\u003eECM pressure tables\u003c\/em\u003e accordingly\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3515\" data-start=\"3381\"\u003e\n\u003cp data-end=\"3515\" data-start=\"3383\"\u003eAvoid running below \u003cstrong data-end=\"3413\" data-start=\"3403\"\u003e¼ tank\u003c\/strong\u003e during performance driving — the pump moves fuel faster than the saddle transfer system can keep up\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"3660\" data-start=\"3517\"\u003eIf you notice fuel pressure drop at high demand, your tuner can resolve this by adjusting commanded pressure to stay within regulator limits.\u003c\/p\u003e\n\u003chr data-end=\"3665\" data-start=\"3662\"\u003e\n\u003ch4 data-end=\"3684\" data-start=\"3667\"\u003e\u003cstrong data-end=\"3684\" data-start=\"3672\"\u003eWarranty\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul data-end=\"3977\" data-start=\"3685\"\u003e\n\u003cli data-end=\"3772\" data-start=\"3685\"\u003e\n\u003cp data-end=\"3772\" data-start=\"3687\"\u003e\u003cstrong data-end=\"3714\" data-start=\"3687\"\u003e90-day limited warranty\u003c\/strong\u003e for the original purchaser against manufacturer defects\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3886\" data-start=\"3773\"\u003e\n\u003cp data-end=\"3886\" data-start=\"3775\"\u003eWarranty does \u003cstrong data-end=\"3796\" data-start=\"3789\"\u003enot\u003c\/strong\u003e cover improper installation, physical damage, tuning errors, or use of unapproved fuels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3977\" data-start=\"3887\"\u003e\n\u003cp data-end=\"3977\" data-start=\"3889\"\u003ePumps must be returned to SMG for inspection and validation prior to any authorization\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"4080\" data-start=\"3979\"\u003eFor service inquiries, contact \u003ca data-end=\"4055\" data-start=\"4010\" rel=\"noopener\" class=\"decorated-link cursor-pointer\"\u003einfo@smgspeed.com\u003cspan class=\"ms-0.5 inline-block align-middle leading-none\" aria-hidden=\"true\"\u003e\u003csvg class=\"block h-[0.75em] w-[0.75em] stroke-current stroke-[0.75]\" data-rtl-flip=\"\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"currentColor\" viewbox=\"0 0 20 20\" height=\"20\" width=\"20\"\u003e\u003cpath d=\"M14.3349 13.3301V6.60645L5.47065 15.4707C5.21095 15.7304 4.78895 15.7304 4.52925 15.4707C4.26955 15.211 4.26955 14.789 4.52925 14.5293L13.3935 5.66504H6.66011C6.29284 5.66504 5.99507 5.36727 5.99507 5C5.99507 4.63273 6.29284 4.33496 6.66011 4.33496H14.9999L15.1337 4.34863C15.4369 4.41057 15.665 4.67857 15.665 5V13.3301C15.6649 13.6973 15.3672 13.9951 14.9999 13.9951C14.6327 13.9951 14.335 13.6973 14.3349 13.3301Z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/a\u003e with your order details.\u003c\/p\u003e\n\u003chr data-end=\"4085\" data-start=\"4082\"\u003e\n\u003ch4 data-end=\"4114\" data-start=\"4087\"\u003e\u003cstrong data-end=\"4114\" data-start=\"4092\"\u003eFuel Compatibility\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul data-end=\"4323\" data-start=\"4115\"\u003e\n\u003cli data-end=\"4173\" data-start=\"4115\"\u003e\n\u003cp data-end=\"4173\" data-start=\"4117\"\u003eDesigned for \u003cstrong data-end=\"4171\" data-start=\"4130\"\u003epump gasoline and ethanol fuels (E85)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"4323\" data-start=\"4174\"\u003e\n\u003cp data-end=\"4323\" data-start=\"4176\"\u003eNot approved for methanol, race gas additives, or other alternative fuels\u003cbr data-end=\"4252\" data-start=\"4249\"\u003e(Use of unapproved fuels may damage internal seals and void warranty)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"4328\" data-start=\"4325\"\u003e\n\u003ch4 data-end=\"4346\" data-start=\"4330\"\u003e\u003cstrong data-end=\"4346\" data-start=\"4335\"\u003eSummary\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-end=\"4665\" data-start=\"4347\"\u003e✅ Drop-in replacement — no cutting, splicing, or tank mods\u003cbr data-end=\"4408\" data-start=\"4405\"\u003e✅ Supports 750+ WHP on E85 with stock LT4 fueling hardware\u003cbr data-end=\"4469\" data-start=\"4466\"\u003e✅ OEM fit with high-output Walbro 535 (Hellcat) pump\u003cbr data-end=\"4524\" data-start=\"4521\"\u003e✅ Assembled, tested, and tuned for real-world power\u003cbr data-end=\"4578\" data-start=\"4575\"\u003e✅ Ideal for supercharged or turbocharged E85 builds\u003cbr data-end=\"4632\" data-start=\"4629\"\u003e✅ Made in Texas, built to perform\u003c\/p\u003e","brand":"SMGspeed","offers":[{"title":"Extended Cab\/Crew Cab","offer_id":47692049547404,"sku":"SMGTRUCKBIGBOY-CREW","price":984.07,"currency_code":"CAD","in_stock":true},{"title":"Standard Cab Long Bed","offer_id":47692049580172,"sku":"SMGTRUCKBIGBOY-STDLB","price":984.07,"currency_code":"CAD","in_stock":true},{"title":"Standard Cab Short Bed","offer_id":47692049612940,"sku":"SMGTRUCKBIGBOY-STDSB","price":984.07,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/8208\/3980\/files\/s-l1200_4a30fa8e-9682-4d9c-91d7-80cbdcb80b62.jpg?v=1776690075","url":"https:\/\/fiperformance.com\/en-ca\/products\/smg-big-boy-drop-in-fuel-pump-for-14-silverado-sierra","provider":"FI Performance","version":"1.0","type":"link"}