909-539-0544

2.5L (2493cc) Duratec Shortblocks

$5,039.21

Choose from 5 different compression ratio/ option packages to suit your specific needs.  All our 2.5L shortblocks have an actual displacement of..

Available Options

Tags: 2.5L (2493cc) Duratec Shortblocks, 2.5L (2493cc) Duratec Shortblocks, Assembled Shortblocks

Choose from 5 different compression ratio/ option packages to suit your specific needs.  All our 2.5L shortblocks have an actual displacement of 2493cc and are assembled by the same technicians that build our winning engines. We take the same level of detail and care when assembling each shortblock from the lowest to highest compression. Each shortblock package has parts picked out to work the best in each given application. Check out the parts lists. and accompanying machinework for each of the options below to help you choose which shortblock will fit your needs the best!

Options:

9.5:1 Compression (good for turbo and supercharged engines up to 700hp)

10.5:1 Compression (good for low pressure street turbo/ supercharged as well as 91/93 octane normally aspirated engines spinning up to 8000+rpm)

12:1 Compression (good for normally aspirated engines spinning up to 8500+rpm on E85/ or 98RON+ fuel)

13.5:1 Compression (good for normally aspirated engines spinning up to 8500+rpm on E85/ or 110 octane fuel)

14.4:1 Compression (good for normally aspirated race engines spinning 9000+rpm on 114+ octane race gas, or methanol)



As with all our shortblock, and complete engine offerings, we start with a brand new block, inspect it for imperfections, dimensions, or damage, before completing the following modifications:

Tap front and rear oil galleys for -8AN O-ring plugs

Tap intake side oil galley for -4AN O-ring plug

Surface Block deck square to crank centerline

Surface Girdle as needed

Install new main girdle hardware (Options: OEM main bolts or ARP Main Stud Kit)

Align hone main tunnel to size

Install ARP Head Stud Kit for torque plate (stud kit hardware available separately)

Torque Plate Hone cylinders to the correct surface finish & clearance for our 3.507" bore 2.5L Duratec pistons

Drill & tap VCT oil feed hole for thread in plug (Drill & tapping for plug is optional, block comes without plug as standard)

Debur all interior and exterior surfaces

Preliminary wash to remove machining chemicals & chips (not to replace final wash before assembly)

Measure all critical dimensions as Quality Control (bore, deck height, main housing bore dia., & cylinder surface finish)

Install new heater hose elbow above water inlet (** We can plug this port on engines without a thermostat**)

Includes new Head Dowels

Includes new Bellhousing Dowels

Includes new piston squirters

Includes new -8AN front & rear oil galley plugs

Includes new -4AN side oil galley plug

Includes new VCT oil galley plug (***do not install when using a VCT cylinderhead***)



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