• Mazworx assembled rb26 long block example. Customer-core service example; pictured hardware varies.
  • Mazworx rb26 front cover detail. Customer-core service example; pictured hardware varies.
  • Mazworx long block side view. Customer-core service example; pictured hardware varies.
  • Mazworx long block front and upper view. Customer-core service example; pictured hardware varies.
  • Mazworx RB26DETT Port Cover Kit 11370, installation view.
  • Mazworx valve covers and oil cap. Customer-core service example; pictured hardware varies.
  • Mazworx RB26DETT Port Cover Kit 11370, installation view.
  • Mazworx engine rear-face and plug detail. Customer-core service example; pictured hardware varies.
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MazWorx Authorized Dealer

Mazworx RB26DETT Long Block Stage 3 Service

Mazworx RB26DETT Long Block Stage 3 Service

$26,249.07
$26,249.07
Sale Sold out
Configuration

Out of stock

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Shipping & returns

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Shipping details

In-stock orders are processed within 48 hours; transit time is additional.

International orders include export processing and customs clearance. Duties, taxes and brokerage are extra; final freight charges may change after remeasurement.

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Returns

Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.

Read the full return policy
Return details & how to start

Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.

Email sales@frsport.com with RETURN and your order number in the subject to request an RMA. Please wait for return authorization before sending your item back.

Wrong part/size or change of mind: a 20% return processing fee applies, plus applicable shipping costs.

Original shipping is non-refundable. For orders shipped free, the actual outbound shipping cost is deducted from the refund. Return shipping is prepaid by the customer.

After payment capture, cancellations and refunds generally incur a 5% processing fee, except for our error, confirmed defects or confirmed carrier loss. The 5% and 20% fees do not stack; only the greater applicable fee applies. Store credit waives the 5% fee, but applicable return fees remain.

Missing, incorrect or transit-damaged items: report within 3 business days of receipt with photos of the product and packaging.

For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.

Specifications

Product details shared across all variants.

Category
Car Repair & Maintenance

This service uses customer-provided engine components. A replacement core is not included.

Provide RB26 core long block. Confirm compatibility and condition before ordering.

Service work and components

  • Complete disassembly of the short block
  • Thorough hot tank cleaning and sanding blasting; block painted in iron finish
  • Machining for installation of threaded oil port and freeze plug plugs
  • Installation of billet main caps and block girdle for added strength
  • Resurfacing of the block, line-boring, and cylinder resizing using a torque plate to ensure precision
  • Crankshaft cleaning, inspection, polishing, and balancing
  • Full assembly of the short block with race-grade components
  • CP Pistons, 86.5mm diameter with 10:1 compression ratio, designed for heavy-duty use
  • Upgraded 9310 wrist pins with .250″ wall thickness
  • Brian Crower billet crankshaft with a 79mm stroke for optimized performance
  • Carrillo Pro-H Beam connecting rods with CARR bolts
  • ACL race bearings for reliability under stress
  • ARP 12mm main stud kit
  • Mazworx billet main caps and block girdle
  • Mazworx threaded and O-ringed small plugs and freeze plug kit
  • Complete disassembly and sand blasting
  • Drilling, tapping, and replacement of oil port plugs
  • Stage 3 CNC porting with opened combustion chambers and camshaft clearancing
  • Machining for threaded freeze plugs
  • Valve guide removal, reaming, and reinstallation
  • Race-grade valve job and valve lash adjustment
  • Resurfacing and assembly of the cylinder head
  • Kelford 184-SF cams with 288/292 duration and 11.1mm lift
  • Kelford DLC-coated cam followers
  • Supertech intake valves enlarged by +1mm
  • Supertech Inconel exhaust valves larger by +1mm
  • Supertech bronze valve guides
  • Kelford RB26DETT beehive valve springs with titanium retainers, rated at 105 lbs
  • Tomei cam cap stud kit, valve seals, and Ferrea valve keepers
  • Mazworx threaded freeze plugs and various miscellaneous plugs
  • ATI Super Damper to reduce vibrations
  • ARP crank bolt and CA625+ head studs for fastener strength
  • Tomei upgraded oil pump and timing belt
  • Nitto crank gear set
  • LeaskSpec oil pan extension
  • Hi-Octane 12 tooth crank trigger and OEM water pump
  • Apexi head gasket (88mm bore, 1.2mm thickness)
  • Kelford adjustable cam gears and OEM timing belt pulleys
  • Powder-coated valve cover and timing cover
  • Mazworx bolt kit
  • Break-in oil and filter included
  • Engine is spun and primed

Confirm delivery arrangements before sending parts. Work starts only after the individual intake is approved.

Additional work and replacement parts need approval. Core credit requests require individual approval. No automatic core credit is included.

Photos show manufacturer work examples. The service uses customer-provided cores. Selected options and listed components define the supplied work.

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Vehicle fitment