{"product_id":"upper-intake-manifold-with-gasket-for-oldsmobile-ninety-eight-1995-1998-3-8l","title":"Upper Intake Manifold with Gasket for Oldsmobile Ninety-Eight (1995-1998) 3.8L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Upper Intake Manifold with Gasket Kit for 1995-1998 Oldsmobile Ninety-Eight (C-Body)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Upper Intake Manifold with Gasket kit replaces the deteriorated factory nylon plenum on the 1995-1998 Oldsmobile Ninety-Eight to eliminate vacuum leaks and protect against catastrophic internal coolant ingestion.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Oldsmobile Ninety-Eight Plenum Thermal Failure\u003c\/h3\u003e\n\u003cp\u003eThe OEM composite plenum on the \u003cstrong\u003e3800 Series II\u003c\/strong\u003e engine suffers from a well-documented failure point near the integrated Exhaust Gas Recirculation (EGR) passage. The unshielded steel EGR stovepipe transfers extreme exhaust gas temperatures directly into the surrounding nylon housing. Over repeated thermal cycles, this localized heat softens and thins the composite material until it ruptures. When the barrier fails, pressurized engine coolant from the adjacent cooling ports enters the intake runners, leading to misfires, fouled O2 sensors, and potential engine hydrolock, while warped sealing flanges create chronic unmetered air leaks.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered as a heavy-duty direct replacement, this upper intake manifold utilizes an updated, heat-stabilized polymer matrix designed to resist thermal degradation around high-temp exhaust passages. The runner geometry maintains balanced plenum volume and factory flow dynamics across all cylinders. Paired with a precision-molded carrier gasket featuring elastomeric port seals, this assembly forms an airtight seal against the lower aluminum manifold, accommodating dynamic thermal expansion without losing clamping torque.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 Upper Intake Manifold (plastic)\u003c\/li\u003e\n  \u003cli\u003e1 Upper Intake Manifold Gasket with port seals\u003c\/li\u003e\n  \u003cli\u003eFuel pressure regulator spring\u003c\/li\u003e\n  \u003cli\u003eThrottle body studs\u003c\/li\u003e\n  \u003cli\u003eO-rings and fittings as pictured\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100% style=\" border-collapse: collapse border: solid font-size: min-width:\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e1995-1998 Oldsmobile Ninety-Eight\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003e3.8L 3800 Series II (L36)\u003c\/strong\u003e \/ \u003cstrong\u003eC-Body\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e205 hp \/ 230 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003e106001\u003c\/strong\u003e, \u003cstrong\u003e217454\u003c\/strong\u003e, \u003cstrong\u003e871601\u003c\/strong\u003e, \u003cstrong\u003e12537425\u003c\/strong\u003e, \u003cstrong\u003e24506013\u003c\/strong\u003e, \u003cstrong\u003e89017272\u003c\/strong\u003e, \u003cstrong\u003e89017274\u003c\/strong\u003e, \u003cstrong\u003eCE1413044\u003c\/strong\u003e, \u003cstrong\u003eFH10095\u003c\/strong\u003e, \u003cstrong\u003eSK615180\u003c\/strong\u003e, \u003cstrong\u003eXTA016\u003c\/strong\u003e, \u003cstrong\u003e615180\u003c\/strong\u003e, \u003cstrong\u003e11396399\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eNinety-Eight 3.8L Gas Naturally Aspirated — 1995-1996\u003c\/li\u003e\n  \u003cli\u003eNinety-Eight 3.8L Gas Supercharged — 1995\u003c\/li\u003e\n  \u003cli\u003eNinety-Eight Regency 3.8L Gas Naturally Aspirated — 1997-1998\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the C-Body Ninety-Eight?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 1995-1998 Oldsmobile Ninety-Eight equipped with the \u003cstrong\u003e3800 Series II 3.8L V6\u003c\/strong\u003e engine. \u003cstrong\u003eThis kit does not fit non-3.8L applications or pre-1995 Series I engines with differing port profiles.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eWhat is the critical installation procedure for this intake?\u003c\/h4\u003e\n\u003cp\u003eFasteners must be torqued on a fully cooled engine to the factory specification of 89 in-lbs in the proper alternating sequence to ensure uniform gasket compression without distorting the composite casing.\u003c\/p\u003e\n\n\u003ch3\u003eThe Oldsmobile Durability Standard\u003c\/h3\u003e\n\u003cp\u003ePreserve the smooth, long-distance touring reliability of your executive sedan by restoring proper manifold vacuum integrity and isolating vital coolant passages from the induction tract.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68038570836216,"sku":"DS-EBL4VJB8T","price":99.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/upper-intake-manifold-with-gasket-for-oldsmobile-ninety-eight-1995-1998-3-8l-1.jpg?v=1794201204","url":"https:\/\/performancechiptuning.com\/es\/products\/upper-intake-manifold-with-gasket-for-oldsmobile-ninety-eight-1995-1998-3-8l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}