{"id":3195,"date":"2026-09-07T14:14:46","date_gmt":"2026-09-07T14:14:46","guid":{"rendered":"https:\/\/passionwebs.com\/elite-engines\/product\/wilwood-forged-narrow-superlite-4r-big-brake-rear-brake-kits-140-16208\/"},"modified":"2026-09-07T14:14:46","modified_gmt":"2026-09-07T14:14:46","slug":"wilwood-forged-narrow-superlite-4r-big-brake-rear-brake-kits-140-16208","status":"publish","type":"product","link":"https:\/\/passionwebs.com\/elite-engines\/product\/wilwood-forged-narrow-superlite-4r-big-brake-rear-brake-kits-140-16208\/","title":{"rendered":"Wilwood Forged Narrow Superlite 4R Big Brake Rear Brake Kits 140-16208"},"content":{"rendered":"<h2>Description<\/h2>\n<p class=\"part-detail-section-header h2\"><strong>Overview<\/strong><\/p>\n<div class=\"attribute-container flex-container flex-wrap\">\n<div class=\"small-12 medium-9 large-6\"><strong>Brand: <\/strong>Wilwood Disc Brakes<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Manufacturer\u2019s Part Number: <\/strong>140-16208<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Part Type: <\/strong>Disc Brake Kits<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Product Line: <\/strong>Wilwood Forged Narrow Superlite 4R Big Brake Rear Brake Kits<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Summit Racing Part Number: <\/strong>WIL-140-16208<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>UPC: <\/strong>889545098631<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Position: <\/strong>Rear<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Disc Brake Kit Type: <\/strong>Heavy-duty<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Front Rotor Included: <\/strong>No<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Brake Rotor Bolt Pattern (mm): <\/strong>5 x 120.00mm<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Rear Rotor Included: <\/strong>Yes<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Rear Rotor Style: <\/strong>Slotted surface<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Rear Rotor Construction: <\/strong>Vented<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Rear Rotor Diameter: <\/strong>13.00 in.\/330.10mm<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Rear Rotor Thickness (in.): <\/strong>1.00<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Front Caliper Included: <\/strong>No<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Rear Caliper Included: <\/strong>Yes<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Rear Caliper Piston Quantity: <\/strong>Four<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Rear Caliper Material: <\/strong>Forged billet aluminum<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Rear Caliper Color: <\/strong>Gray\/Silver<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Brake Pads Included: <\/strong>Yes<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Friction Material Name: <\/strong>BP-30<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Parking Brake Provision: <\/strong>No<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Front Spindles Included: <\/strong>No<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Master Cylinder Included: <\/strong>No<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Brake Booster Included: <\/strong>No<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Remanufactured: <\/strong>No<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Brake Hoses Included: <\/strong>No<\/div>\n<div class=\"small-12 medium-9 large-6\"><strong>Quantity: <\/strong>Sold as a kit.<\/div>\n<\/div>\n<p class=\"part-detail-description-title\"><strong>Wilwood Forged Narrow Superlite 4R Big Brake Rear Brake Kits<\/strong><\/p>\n<p class=\"part-detail-description\">Wilwood Forged Narrow Superlite 4R Big Brake rear brake kits are the engineered match for the AERO6R\/ST front race kits on vehicles intended for unrestricted road race competition. All emphasis is on matched front to rear balance, high durability, and high-efficiency heat management, without adding unnecessary rotating or unsprung weight to the driveline and rear suspension. Wilwood Forged Narrow Superlite 4R Big Brake rear brake kits are championship-proven systems.<\/p>\n<p>Features and benefits:<\/p>\n<p>* FNSL4R\/ST calipers use a forged aluminum body and feature a Type III Mil-Spec, medium gray color hard anodized finish that provides superior wear resistance in the piston bores, and high resistance to abrasion and corrosion throughout<br \/>\n* Thermlock pistons are used to reduce heat transfer from the pads to increase fade resistance, and extend service life by decreasing temperatures in the caliper body, fluid, and seals<br \/>\n* Internal damper springs and controlled retraction, high-temperature piston seals assure consistent pedal height from start to finish<br \/>\n* Caliper piston volumes are matched for full compatibility with the OE master cylinder output and ABS controls<br \/>\n* Calipers are also fully compatible with manual brake conversions to balance bar pedals using appropriately sized master cylinders.<br \/>\n* Spec 37 alloy GT Series directional vane 13 in. rotors are dynamically mounted using Wilwood Dynamic Lug Mounting system to forged aluminum hats<br \/>\n* Hats are hard anodized for superior wear resistance and extended service life at the load bearing surfaces<br \/>\n* Mounting brackets include all premium grade fasteners and secure the calipers to the uprights in the stock location with no modifications required<br \/>\n* High-temperature, high-friction, race compound pads selected specifically by application<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Disc Brakes, Forged Narrow Superlite 4R Big Brake, Rear, Rotors, Slotted, 4-piston Calipers, Gray Anodized, Cadillac, Chevrolet, Kit<\/p>\n","protected":false},"featured_media":3194,"comment_status":"open","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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