{"product_id":"ace-drag-pak-gen-iii-hemi-cgi-block","title":"ACE DRAG PAK – Gen III HEMI CGI Engine Block | 4.125\" Standard Deck, Non-VCT 60mm Roller","description":"\u003cp\u003e\u003cstrong\u003eBuilt for the strip.\u003c\/strong\u003e ACE DRAG PAK is the drag and bracket race configuration: standard 9.285\" deck, 937 roller-guided splay lifter bushings, and a non-VCT front drive with a 60mm roller cam tunnel that clears the lift and duration a race cam actually wants. This is a purpose-built race block, not a street block with race parts added.\u003c\/p\u003e\n\n\u003ch3\u003eThis build\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeck height \u0026amp; lifters:\u003c\/strong\u003e Standard 9.285\" deck, 937 roller-guided splay lifter bushings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTiming drive \u0026amp; cam:\u003c\/strong\u003e Non-VCT, 60mm roller cam tunnel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore \u0026amp; finish:\u003c\/strong\u003e 4.125\", rough\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrice:\u003c\/strong\u003e $5,600 — direct from the manufacturer\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eDrag and bracket race spec for the 6.2L \/ 6.4L Gen III HEMI family. The 937 splay roller-guided lifter bores support high-RPM valvetrain and ACE INC high-flow heads; the 60mm cam tunnel makes room for a big-lift roller.\u003c\/p\u003e\n\n\u003ch3\u003eMachine work required\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eRough bore.\u003c\/strong\u003e This block ships .003\" undersize at 4.125\". Your machine shop finish-hones it to final bore before ring fit, matched to your ring package.\u003c\/p\u003e\n\n\u003ch3\u003eSupporting parts — read this before ordering\u003c\/h3\u003e\n\u003cp\u003eThis is a \u003cstrong\u003enon-VCT configuration\u003c\/strong\u003e. It runs a fixed-timing front drive and is \u003cstrong\u003enot compatible with factory variable cam timing\u003c\/strong\u003e. It requires a non-VCT cam, and the 937 roller-guided splay lifters need a cam ground to match. Talk to an engineer to confirm your cam package before you order — this is the single most common place a race block order goes wrong.\u003c\/p\u003e\n\n\u003ch3\u003eACE CGI engineering — on every block\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCompacted graphite iron, 450 MPa minimum tensile strength (GJV-450)\u003c\/li\u003e\n\u003cli\u003e6-bolt 4140 billet steel main caps on all five mains\u003c\/li\u003e\n\u003cli\u003eM14 head stud threads in the deck; 9.5\" studs for roughly 50% more stretch compliance, so clamp load stays stable through a knock event\u003c\/li\u003e\n\u003cli\u003eTrue priority main oil gallery, dedicated lifter secondary circuit, and a straight filter-to-MOG feed with no 90° turns\u003c\/li\u003e\n\u003cli\u003eDry sump feed provision; cast-in -8 ORB oil drain-back ports at the pan rail by cylinders 1 and 2\u003c\/li\u003e\n\u003cli\u003eStroker clearance for 5.100\" stroke with 2.200\" rod journals\u003c\/li\u003e\n\u003cli\u003eFully water jacketed — race block strength, street driveable\u003c\/li\u003e\n\u003cli\u003eSerialized casting, shipped with its CMM report and full casting and machining QC documentation\u003c\/li\u003e\n\u003cli\u003eCast and machined in-house at our Michigan foundry and CNC cell\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOrdering\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ePRE-ORDER\u003c\/strong\u003e — reserve your block now. Orders are fulfilled in the sequence received, and we confirm your production slot by email once your order is placed.\u003c\/p\u003e\n\u003cp\u003eFull payment at checkout. Direct from the manufacturer — same price for everyone, no dealer markup, no middlemen. Free shipping within the USA.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot sure it fits your build?\u003c\/strong\u003e Talk to an ACE engineer before you order: \u003ca href=\"mailto:eric@aceinc.shop\"\u003eeric@aceinc.shop\u003c\/a\u003e · \u003ca href=\"tel:+16159242737\"\u003e(615) 924-2737\u003c\/a\u003e. Bring your cam card and we will confirm the combination.\u003c\/p\u003e\n\n\u003ch3\u003eNeed a different bore, deck, or cam setup?\u003c\/h3\u003e\n\u003cp\u003eACE DRAG PAK is one fixed configuration. Every other combination — tall deck, stock lifters, VCT front drives, other bores, factory-honed finishes, and the 82mm Pro-Stock cam tunnel — is available on our \u003ca href=\"\/products\/gen-iii-hemi-engine-block-cgi\"\u003eBuild Your Own Gen III HEMI CGI Block\u003c\/a\u003e page.\u003c\/p\u003e","brand":"ACE INC","offers":[{"title":"Default Title","offer_id":48333911064834,"sku":"ACE-BLK-DRAGPAK","price":5600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/8693\/4530\/files\/gen-iii-hemi-engine-block-cgi-purple_7a60f081-dc32-46b9-83f9-f92e1bb8ba8e.jpg?v=1786706081","url":"https:\/\/aceinc.shop\/products\/ace-drag-pak-gen-iii-hemi-cgi-block","provider":"ACE INC ","version":"1.0","type":"link"}