{"product_id":"throttle-body-spacer-for-gmc-s-10-1988-1990-4-3l","title":"Throttle Body Spacer for GMC S-10 (1988-1990) 4.3L","description":"\u003ch2\u003ePrecision Billet Throttle Body Spacer for 1988-1990 GMC S-10\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Increases intake plenum volume directly beneath the throttle body injection unit to sharpen off-idle throttle response and optimize low-end torque delivery.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock S-10 TBI Velocity Deficit\u003c\/h3\u003e\n\u003cp\u003eThe factory throttle body injection setup on the GM 4.3L creates an abrupt transition into the cast iron intake manifold. This restricted runner entry results in localized turbulence, stagnant air-fuel mixture pooling, and sluggish tip-in response under load. Factory configurations suffer from restrictive flow dynamics that choke early manifold velocity, compromising low-RPM pulling power and transient throttle response.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eCNC-machined from solid 6061-T6 billet aluminum, this spacer acts as a plenum extension between the TBI unit and the intake manifold. The bore geometry optimizes airflow transition, reducing boundary layer drag and standardizing charge velocity into the runners. Finished in a corrosion-resistant anodized coating, the structural aluminum resists heat-soak warpage, maintains flat sealing surfaces against vacuum leaks, and improves fuel-air atomization without ECU recalibration.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e1988-1990 GMC S-10\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e4.3L LB4 V6 \/ GMT325\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e160 hp \/ 230 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1988-1990 GMC S-10 Base 4.3L V6 TBI\u003c\/li\u003e\n  \u003cli\u003e1988-1990 GMC S-10 Durango 4.3L V6 TBI\u003c\/li\u003e\n  \u003cli\u003e1988-1990 GMC S-10 High Sierra 4.3L V6 TBI\u003c\/li\u003e\n  \u003cli\u003e1988-1990 GMC S-10 Sierra Classic 4.3L V6 TBI\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe GMC Utility Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle sustained truck duty cycles, this hardware delivers the direct manifold velocity required when towing, hauling payloads, or navigating steep grades where low-RPM throttle precision is non-negotiable.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50498978382072,"sku":"DS-E1FNL6HRE","price":63.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/throttle-body-spacer-for-gmc-s-10-1988-1990-4-3l-1.jpg?v=1789276131","url":"https:\/\/performancechiptuning.com\/es\/products\/throttle-body-spacer-for-gmc-s-10-1988-1990-4-3l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}