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HKS

HKS VR38DETT Short block VR38 4.3L STEP Pro - 2009-UP NISSAN R35 GT-R - 23011-AN015

HKS VR38DETT Short block VR38 4.3L STEP Pro - 2009-UP NISSAN R35 GT-R - 23011-AN015

SKU:23011-AN015

Regular price $46,000.00 USD
Regular price Sale price $46,000.00 USD
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The assumed torque is a value assumed from our in-house test data, etc., and does not guarantee that it can be used without damage.

Please note that the allowable torque value will change depending on the vehicle specifications, road surface conditions, driving conditions, mileage, etc. when using the actual vehicle.

The Pro exclusive crank has changed the material to nitriding steel and changed the surface treatment to ion nitriding, deepening the surface hardness and hardening layer to greatly improve durability.
Increased torsional strength by enlarging the corner radius of the crankpin
10mm longer front end of crank to prevent fretting on pulley
Uses HKS original design main stud bolt with increased screw size.
#2 and 3 journals are made of chrome molybdenum to increase strength
Line boring to ensure journal roundness
Main bearings and connecting rod bearings are selected through numerous tests
VR43 engine dedicated crank damper reduces torsional vibration. (accessories)

Crank damper for VR43 (co-developed with ATI)


Dedicated crank expands the corner radius of the pin to improve the torsional strength of the crank.


Dedicated connecting rod bearing


Fully machined crankshaft that achieves vibration reduction, light weight, and high response by adopting high-efficiency balance weights


The #2 and #3 bearing caps are remade with chrome molybdenum and strengthened, and the accuracy is improved by line boring.

Specifications

  HKS 4.3L genuine
bore 95.5mm 95.5mm
stroke 99.0mm 88.4mm
Compression ratio (t=0.8) 8.6 9.0
Allowable rotation speed 7,400rpm 7,000rpm
displacement 4,255cc 3,799cc

SHORT BLOCK VR38 4.3L STEP Pro

Block processing details #2/3 chrome molybdenum cap
Relief processing of crank interference part
Main bearing screw size up
Ladder cap hole enlargement, counterbore
Line boring of journal holes
Honing
main bolt HKS M12 Stud Bolt (625+)
piston HKS machined (molybdenum coat)
connecting rod HKS H cross section (fillet part relief processing)
Crankshaft Machined nitrided steel (tungsten weight)
Ion nitriding
Enlarged pin fillet R
Crank damper attachment extension
main bearing ACLs
connecting rod bearing Genuine + WPC
crank pulley VR43 exclusive damper