K24 completed engine

Permanent digital build record · Issued July 18, 2026

Kingdom Built Motors

ENGINE
PASSPORT

KBM-K24-0001

EngineK24
Displacement2.4L
Build typeStreet Performance Long Block
StatusVerified Build

01 / Identity

Build overview

The permanent identity and intended configuration of this engine.

Engine family
K24
Displacement
2.4L
Configuration
DOHC 16-valve inline-four
Build type
Street Performance Long Block
Build ID
KBM-K24-0001
Completion date
July 18, 2026
Builder
Kingdom Built Motors
Build status
Verified Build
Intended use
Premium street performance and properly calibrated mild-boost applications

02 / Bill of materials

Component specification

Major internal components identified by manufacturer, part number and build-specific notes.

01
Connecting rodsManley · H-Beam connecting rods
Details
ManufacturerManley
Part nameH-Beam connecting rods
Part number14018-4
Specification4340 forged steel, performance fasteners
Builder notes

Big-end sizing and installation verified.

02
Main bearingsKing Racing · XP tri-metal main bearing set
Details
ManufacturerKing Racing
Part nameXP tri-metal main bearing set
Part numberMB5560XP
SpecificationMeasured to KBM fixture range
Builder notes

Oil clearances recorded at every journal.

03
PistonsWiseco · Forged 87.5 mm piston set
Details
ManufacturerWiseco
Part nameForged 87.5 mm piston set
Part numberK542M875
Specification10.5:1 nominal compression, -7 cc dish
Builder notes

Pins fitted and locks visually verified.

03 / Machining

Machine work

Every approved operation tied to a provider, result and date for complete traceability.

✓

Block inspection

KBM

No cracks or thread damage observed

Main saddle alignment and deck condition approved.

✓

Pressure test and valve job

Capital Cylinder Head

Hot pressure and vacuum tests passed

Seat contact centered and recorded.

✓

Cylinder honing

Precision Engine Machine

87.500–87.508 mm; plateau finish

Torque plate installed.

04 / Precision record

Precision measurements

Only the designated accepted reading for each public point is shown; every value is checked against the specification captured with that reading.

9of 9
accepted points passed

Main bearing clearance

5 accepted points
LocationAccepted readingCaptured specificationResult
Main 10.0021 in0.0017-0.0023 inPASS
Main 20.002 in0.0017-0.0023 inPASS
Main 30.002 in0.0017-0.0023 inPASS
Main 40.0019 in0.0017-0.0023 inPASS
Main 50.0021 in0.0017-0.0023 inPASS

Rod bearing clearance

4 accepted points
LocationAccepted readingCaptured specificationResult
Cylinder 10.002 in0.0018-0.0023 inPASS
Cylinder 20.0021 in0.0018-0.0023 inPASS
Cylinder 30.002 in0.0018-0.0023 inPASS
Cylinder 40.0021 in0.0018-0.0023 inPASS

Development fixture values are illustrative KBM-controlled sample data and are not represented as official manufacturer specifications.

05 / Quality gate

Assembly verification

Required assembly controls signed off before the engine advanced to testing.

Block and oil passages cleanedVerified · KBM Lead Builder
Main fasteners torquedVerified · KBM Lead Builder
Rod fasteners torquedVerified · KBM Lead Builder
Cam timing verifiedVerified · KBM Lead Builder
Final engine rotation and visual inspectionVerified · KBM Lead Builder

06 / Validation

Testing & final inspection

Final test results captured before this engine was released as a Verified KBM Build.

PASS
Compression test218 / 220 / 219 / 221 psi
PASS
Oil pressure24 psi hot idle / 76 psi at 4,000 rpm
PASS
Final inspectionApproved by lead builder

08 / Builder record

Builder notes

Customer-facing context recorded by the builder at the time of completion.

“Development demonstration record: sample KBM-controlled build data, not a claim about measurements from a customer or production engine. This K24 was assembled as a durable, responsive street long block with documented clearances, ring gaps and valvetrain controls.”
KB
Kingdom Built MotorsVerified builder record · 2026-07-18

09 / Ownership

Recommended setup & care

Installation and break-in requirements specific to this completed engine.

01Recommended engine oil+

Break-in: Driven BR30 5W-30; normal service: premium full-synthetic 5W-30.

02Initial startup+

Prime the lubrication system, verify immediate oil pressure and inspect for leaks.

03Break-in procedure+

Use varied load and engine speed; avoid extended idling or steady cruise.

10 / Downloads

Build documentation

Portable records supplied with the permanent online Passport.