{"title":"GTR Engine Packages","description":"\u003cp\u003eBuilt VR38DETT engines for the Nissan R35 GT-R, ready to drop in. Boost Logic head packages, short blocks, 4.1L strokers and complete crate motors — from Stage 1 street to the Kaiju.\u003c\/p\u003e\u003cp\u003eEvery package is assembled and blueprinted to a target power level, so you know what it holds before it goes in the car.\u003c\/p\u003e","products":[{"product_id":"boost-logic-stage-1-head-package-for-nissan-r35-gtr-2009","title":"Boost Logic Stage 1 Head Package for Nissan R35 GTR (2009+)","description":"\u003cp\u003eThe Boost Logic Stage 1 Head Package for the Nissan R35 GTR (2009+) is built around a full Ferrea valvetrain setup with Single Valve Springs, Titanium Retainers, and new OEM Buckets. Boost Logic Custom Cams finish off the head, with the cam specified to the needs of your engine. We have everything available from a mild mannered, quick spooling, high velocity setup to a high lift and high duration race camshaft.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHead Package Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNew OEM Inserts for Spark Plugs\u003c\/li\u003e\n\u003cli\u003eFerrea Valves\u003c\/li\u003e\n\u003cli\u003eFerrea Valve Locks\u003c\/li\u003e\n\u003cli\u003eFerrea Titanium Retainers\u003c\/li\u003e\n\u003cli\u003eFerrea Single Valve Springs\u003c\/li\u003e\n\u003cli\u003eFerrea Spring Locators\u003c\/li\u003e\n\u003cli\u003eFerrea Standard Exhaust Valves\u003c\/li\u003e\n\u003cli\u003eFerrea Standard Intake Valves\u003c\/li\u003e\n\u003cli\u003eBoost Logic Custom Grind Camshafts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eOptional:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNew OEM Heads\u003c\/li\u003e\n\u003cli\u003eNew OEM Buckets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAvailable with new cores or used cores. Shipping weight: 100 lbs.\u003c\/p\u003e","brand":"Boost Logic","offers":[{"title":"Used Cores","offer_id":48410720272578,"sku":"02010715-USED","price":4499.99,"currency_code":"USD","in_stock":true},{"title":"New Cores","offer_id":48410720305346,"sku":"02010715-NEW","price":10999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0629\/2026\/1826\/files\/edit21500x332_1.jpg?v=1783998034"},{"product_id":"boost-logic-stage-2-street-head-package-for-nissan-r35-gtr-2009","title":"Boost Logic Stage 2 Street Head Package for Nissan R35 GTR (2009+)","description":"\u003cp\u003eOur Street Heads Package begins with two brand new or used cylinder heads. They are then cleaned to our mild street specifications, which have been flow tested for proven results. We then add a full Ferrea Valvetrain setup with Dual Valve Springs, Titanium Retainers, and new OEM Buckets. Boost Logic Custom Cams finish off the head, with the cam specified to the needs of your engine. We have everything available from a mild mannered, quick spooling, high velocity setup to a high lift and high duration race camshaft.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHead Package Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSTREET Lash\u003c\/li\u003e\n\u003cli\u003eFerrea Valves\u003c\/li\u003e\n\u003cli\u003eFerrea Valve Locks\u003c\/li\u003e\n\u003cli\u003eFerrea Titanium Retainers\u003c\/li\u003e\n\u003cli\u003eFerrea Dual Springs\u003c\/li\u003e\n\u003cli\u003eFerrea Spring Locators\u003c\/li\u003e\n\u003cli\u003eFerrea Standard Size Exhaust Valves\u003c\/li\u003e\n\u003cli\u003eFerrea Standard Size Intake Valves\u003c\/li\u003e\n\u003cli\u003eBoost Logic Custom Grind Camshafts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eOptional:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNew OEM Heads\u003c\/li\u003e\n\u003cli\u003eNew OEM Buckets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCustom Amco 45 Valve Seats are available as an option as well. Shipping weight: 100 lbs.\u003c\/p\u003e","brand":"Boost Logic","offers":[{"title":"Used Cores","offer_id":48410720436418,"sku":"02010716-USED","price":5899.99,"currency_code":"USD","in_stock":true},{"title":"New Cores","offer_id":48410720469186,"sku":"02010716-NEW","price":12399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0629\/2026\/1826\/files\/300x2001_1.jpg?v=1783998056"},{"product_id":"boost-logic-stage-3-race-head-package-for-nissan-r35-gtr-2009","title":"Boost Logic Stage 3 Race Head Package for Nissan R35 GTR (2009+)","description":"\u003cp\u003eOur Race Heads Package is built on either your used cores or two brand new cylinder heads, depending on the option you select. They are then hand ported to our race specifications, which have been flow tested for proven results. We then add a full Ferrea Valvetrain setup with Dual Valve Springs, Titanium Retainers, and new OEM Buckets. Boost Logic Custom Cams finish off the head, with the cam specified to the needs of your engine. 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Contact us to configure this option.\u003c\/p\u003e\n\u003cp\u003eShipping weight: 300 lbs.\u003c\/p\u003e","brand":"Boost Logic","offers":[{"title":"Default Title","offer_id":48410721976514,"sku":"BL 020107S1","price":19999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0629\/2026\/1826\/files\/untitled2415x340_2.jpg?v=1783998219"},{"product_id":"boost-logic-stage-2-3-8l-4-1l-crate-motor-for-nissan-r35-gtr","title":"Boost Logic Stage 2 3.8L \/ 4.1L Crate Motor for Nissan R35 GTR","description":"\u003cp\u003eBoost Logic Stage 2 crate motor for the Nissan R35 GTR, available in 3.8L and 4.1L displacements.\u003c\/p\u003e\n\u003cp\u003eEach Stage 2 crate motor is built either with a good core exchange or on a new OEM core.\u003c\/p\u003e\n\u003cp\u003eContact us to configure this option.\u003c\/p\u003e\n\u003cp\u003eShipping weight: 300 lbs.\u003c\/p\u003e","brand":"Boost Logic","offers":[{"title":"Default Title","offer_id":48410722009282,"sku":"BL-STG2-CRATE-38-41","price":32499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0629\/2026\/1826\/files\/DSC07287.jpg?v=1783998229"},{"product_id":"nissan-oem-vr38dett-bare-block-for-r35-gtr-11000-jf00a","title":"Nissan OEM VR38DETT Bare Block for R35 GTR (11000-JF00A)","description":"\u003cp\u003eBrand new bare VR38DETT engine block for the Nissan R35 GTR.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNissan part number: 11000-JF00A\u003c\/li\u003e\n\u003cli\u003eBrand new, bare block (no internals)\u003c\/li\u003e\n\u003cli\u003eShipping weight: 103 lbs\u003c\/li\u003e\n\u003cli\u003eShipping dimensions: 25 x 20 x 24 in\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Boost Logic","offers":[{"title":"Default Title","offer_id":48410723844290,"sku":"11000-JF00A","price":7999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0629\/2026\/1826\/files\/11000JF0HA-nissan-oem-vr38dett-r35-gtr-bare-block-1_1024x1024_jpg.webp?v=1783998280"},{"product_id":"boost-logic-stage-extreme-short-block-for-nissan-r35-gtr","title":"Boost Logic Stage 5 Extreme Short Block for R35 GTR","description":"\u003cp\u003eThe Boost Logic Stage 5 Extreme Block features all of the modifications we can do on a stock block. 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The following is a limited list of items we do; other proprietary items are not shared with the public.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Stage Extreme Short Block Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBoost Logic Stroker Kit\u003c\/li\u003e\n\u003cli\u003eManley 300M Rods or Boost Logic Spec Aluminum Rods\u003c\/li\u003e\n\u003cli\u003eTool Steel Wrist Pins\u003c\/li\u003e\n\u003cli\u003eCustom Pistons\u003c\/li\u003e\n\u003cli\u003eBoost Logic Billet Girdle\u003c\/li\u003e\n\u003cli\u003eBoost Logic Upgraded Main Studs\u003c\/li\u003e\n\u003cli\u003eBoost Logic Upgraded Head Studs\u003c\/li\u003e\n\u003cli\u003eBoost Logic Oiling System Modifications\u003c\/li\u003e\n\u003cli\u003eNew OEM Nissan Block\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eShipping weight: 150 lbs.\u003c\/p\u003e","brand":"Boost Logic","offers":[{"title":"Default Title","offer_id":48410724008130,"sku":"BL-STG5-EXTREME-SB","price":25999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0629\/2026\/1826\/files\/img_6853_1.jpg?v=1783998291"},{"product_id":"boost-logic-4-1-stroker-vr38-short-block-for-nissan-r35-gtr","title":"Boost Logic 4.1L Stroker VR38 Short Block for R35 GTR","description":"\u003cp\u003eOur 4.1 stroker short block is the perfect upgrade for GTR owners looking for a bulletproof bottom end to handle big power while improving overall spool up and torque. 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