[{"id":170473980001,"handle":"all-products","updated_at":"2025-05-13T21:25:04-05:00","published_at":"2020-09-09T18:55:52-05:00","sort_order":"best-selling","template_suffix":"pf-e03b4526","published_scope":"global","title":"All The Parts","body_html":""},{"id":347630918,"handle":"best-selling-products","title":"Best Selling Products","updated_at":"2025-05-14T12:20:17-05:00","body_html":null,"published_at":"2016-10-02T12:22:59-05:00","sort_order":"best-selling","template_suffix":null,"disjunctive":true,"rules":[{"column":"title","relation":"contains","condition":"Best Selling"},{"column":"title","relation":"not_contains","condition":"Best Selling"}],"published_scope":"global"},{"id":170473947233,"handle":"all-factory-mast-products","updated_at":"2025-05-08T11:06:56-05:00","published_at":"2020-09-09T18:55:33-05:00","sort_order":"best-selling","template_suffix":"pf-b987ad6d","published_scope":"global","title":"Factory Mast","body_html":""},{"id":239796945095,"handle":"factory-mast-engines","updated_at":"2025-02-28T12:56:57-06:00","published_at":"2020-12-22T16:36:00-06:00","sort_order":"best-selling","template_suffix":"engines-no-pricing","published_scope":"global","title":"Factory Mast - LS Crate Engines","body_html":""},{"id":29758751,"handle":"ls-engines","updated_at":"2025-02-28T12:56:57-06:00","published_at":"2014-10-22T13:00:00-05:00","sort_order":"manual","template_suffix":"engines-no-pricing","published_scope":"global","title":"LS Engines","body_html":"\u003cp style=\"text-align: center;\"\u003eHandbuilt LS engines from Mast Motorsports. Complete your engine with front drives, engine controllers and everything in between.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eEngine lead times vary - please call \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e1-866-551-4916 for delivery estimate.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/airtable.com\/app1GO7hNT6zpA60j\/pagvNV3bFTNeJTxEO\/form\" rel=\"noopener\" target=\"_blank\"\u003eClick here to request a custom engine with our free engine quote questionaire.\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","image":{"created_at":"2019-07-17T19:59:16-05:00","alt":null,"width":1771,"height":2048,"src":"\/\/www.mastmotorsports.com\/cdn\/shop\/collections\/LS7_427_2.9L_5b220b5e-531f-4e78-ab93-e0c33003d409.png?v=1563411558"}},{"id":152865931361,"handle":"all-engines","updated_at":"2025-02-28T12:55:40-06:00","published_at":"2019-10-17T10:47:43-05:00","sort_order":"manual","template_suffix":"engines-no-pricing","published_scope":"global","title":"Products - Engines","body_html":"\u003cp style=\"text-align: center;\"\u003eEngine pricing \u0026amp; lead times vary - please call \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e1-866-551-4916 for pricing \u0026amp; delivery estimate.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/airtable.com\/app1GO7hNT6zpA60j\/pagvNV3bFTNeJTxEO\/form\" rel=\"noopener\" target=\"_blank\"\u003eClick here to request a custom engine with our free engine quote questionaire.\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c!----\u003e"},{"id":277215346887,"handle":"crate-engines","updated_at":"2025-02-28T12:56:58-06:00","published_at":"2021-08-11T15:31:30-05:00","sort_order":"manual","template_suffix":"engines-no-pricing","published_scope":"global","title":"Turn Key Crate Engines","body_html":""}]
Factory Mast hand builds each engine, and remanufactures components to bring you only the highest quality turn key engine available.
Factory Mast LS engines come standard with CNC ported OE Castings, or upgrade to Mast Motorsports Black Label Heads.
EVERY Engine is dyno tested, and pre-programmed with a baseline dyno tune*, to get you on the road faster. Backed by the Mast Limited Warranty.
Specs
370 Cubic Inch
Ready to Run - Wire & Drive
HP Rated at 550 HP
LS3 Style Port Heads
Holley ECM & Wiring Harness
Drive by Cable Throttle Body
Comes with Starter, water pump
All Engine Controls, wiring harness
* We recommend final tune be done in your vehicle for ultimate drive-ability.
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