[{"id":170473980001,"handle":"all-products","updated_at":"2025-05-18T09:00:02-05:00","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":"2025-05-20T16:50:34-05:00","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":239797797063,"handle":"black-label","updated_at":"2025-04-24T02:25:02-05:00","published_at":"2020-12-22T16:49:49-06:00","sort_order":"best-selling","template_suffix":"pf-cb6e825d","published_scope":"global","title":"Black Label","body_html":""},{"id":239860482247,"handle":"black-label-custom-built-engines","updated_at":"2025-02-28T12:56:57-06:00","published_at":"2020-12-23T13:23:06-06:00","sort_order":"manual","template_suffix":"engines-no-pricing","published_scope":"global","title":"Black Label - Custom Built 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"}]
*All hp numbers will be within 2% of the advertised number.
The LS7 HO’s heart and soul is the Factory Mast aluminum block. This LS7 engine family utilizes a Mast Motorsports-engineered camshaft that is custom ground on a Mast Motorsports 3 bolt cam core. The 427 HO’s foundation is a fully machined aluminum block with a forged Callies rotating assembly with that is topped off with Mast Motorsports Black Label LS7 305cc cylinder heads and a LS7 intake manifold. ARP fasteners are used throughout and Mast Motorsports Black Label pushrods ride on GM LS7 hydraulic roller lifters. This hand built LS7 based engine utilizes a camshaft that has a moderate lope that creates great mid and high RPM power for the customer that will be aggressively racing their vehicle, but still wants great street manners for a daily driver.
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