{"product_id":"mas-ignition-distributor-for-lt1-optispark-5-7l-v8-complete-assembly-with-cap-rotor-1994-97","title":"MAS Ignition Distributor for LT1\/Optispark 5.7L V8 — Complete Assembly with Cap \u0026 Rotor (1994–97)","description":"\u003cp\u003e\u003cstrong\u003eMAS Ignition Distributor with cap and rotor is a direct-fit replacement for LT1\/Optispark V8 5.7L engines, restoring timed spark for Chevrolet, Buick and Pontiac models from the mid-1990s.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen an aging Optispark distributor starts causing misfires, stalling or erratic idle, swapping in a complete MAS distributor assembly (cap and rotor included) returns reliable ignition timing and eliminates the time-consuming diagnosis of individual ignition components. This MAS unit is built to match OEM dimensions and electronic specifications for 1994–1997 GM LT1 platform vehicles, providing a straightforward replacement without the need for extra modifications or expensive dealer parts.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles and part numbers is this MAS distributor compatible with?\u003c\/h3\u003e\n\u003cp\u003eThis MAS distributor is made to fit a range of mid-1990s GM models using the LT1\/Optispark ignition layout. It is matched to common OEM reference numbers so you can cross-check fitment before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVehicle fitment: 1994–96 Buick Roadmaster, 1994–96 Fleetwood, 1995–97 Chevy Camaro, 1994–96 Chevy Caprice, 1995–96 Chevy Corvette, 1994–96 Chevy Impala, 1995–97 Pontiac Firebird.\u003c\/li\u003e\n  \u003cli\u003eOEM cross-references: DST109, KA-GM8381 and Hollander references 606-02339, 84-1833, 30-1833, 1103916, 01104032, 1104032.\u003c\/li\u003e\n  \u003cli\u003eSupplied as a complete assembly with cap and rotor for direct swap-in compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the MAS distributor match OEM quality and electrical performance?\u003c\/h3\u003e\n\u003cp\u003eMAS manufactures this distributor to meet key OEM standards so electrical timing and mechanical fit align with factory expectations. Components are circuit-tested before and after assembly to ensure the module and internal electronics operate within specification.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e100% compatible with OEM dimensions and mounting points for proper alignment.\u003c\/li\u003e\n  \u003cli\u003eElectronic module and internal components computer-tested pre- and post-assembly.\u003c\/li\u003e\n  \u003cli\u003eIncludes cap and rotor matched to the distributor to avoid mismatched parts causing misfires.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat do I get in the box and is installation straightforward?\u003c\/h3\u003e\n\u003cp\u003eThe package contains the MAS ignition distributor preassembled with its matching cap and rotor, ready for installation. For a mechanically competent DIYer or a technician familiar with LT1\/Optispark systems, the swap is a standard replacement requiring basic tools and timing re-check.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBox contents: MAS ignition distributor assembly with cap and rotor included.\u003c\/li\u003e\n  \u003cli\u003eInstallation: direct-fit replacement—no custom machining or extra parts typically required.\u003c\/li\u003e\n  \u003cli\u003ePost-install: verify ignition timing and clear any stored engine codes after swap.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat warranty and support does MAS provide?\u003c\/h3\u003e\n\u003cp\u003eMAS supports this ignition distributor with a one-year replacement warranty, giving short-term protection against manufacturing defects. This warranty helps ensure you receive a functioning replacement if the part fails under normal use during the warranty period.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWarranty: one-year replacement coverage from date of purchase.\u003c\/li\u003e\n  \u003cli\u003eQuality assurance: parts are tested electronically during production to reduce early failures.\u003c\/li\u003e\n  \u003cli\u003eCompatibility guidance: verify vehicle year and OEM numbers before purchase to ensure fit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Technicians, DIY enthusiasts and fleet managers working on mid-1990s GM LT1 V8 vehicles who need a reliable, direct-fit distributor replacement. If you’re troubleshooting repeated misfires, rotor\/cap wear or intermittent ignition issues on compatible Chevy, Buick or Pontiac models, the MAS Ignition Distributor with cap and rotor provides a ready-to-install solution backed by OEM compatibility and a one-year warranty.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this distributor a direct replacement for Optispark LT1 engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — MAS is a direct-fit replacement for Optispark LT1 5.7L V8 engines in listed 1994–1997 GM models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the package include the cap and rotor?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the MAS package ships as a complete distributor assembly with cap and rotor included.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"MAS","offers":[{"title":"Default Title","offer_id":55169072955735,"sku":"B074MJWH1W","price":89.48,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/mas-distributor-front-view.jpg?v=1790417903","url":"https:\/\/britishgarage.co.uk\/products\/mas-ignition-distributor-for-lt1-optispark-5-7l-v8-complete-assembly-with-cap-rotor-1994-97","provider":"British Garage","version":"1.0","type":"link"}