(ENGINE) SHORT BLOCK VR38 4.3L STEP3
ENGINE BLOCK COMPONENTS
【Short block VR38 4.3L STEP3】
Short block that includes the VR38 4.3L Capacity Upgrade kit
・Expected use scenes: Street
・Assumed torque: ~ 1000 N∙m
The assumed torque came from the in-house test data. We do not guarantee the use of the product without any damage.
Please note that the allowable torque may vary depending on the specifications of a vehicle, road surface conditions, driving conditions, travel distances, and so on when using the product on the actual vehicle.
- Employing the HKS original main stud bolt with upsized thread.
- The process for upsizing the thread of the block.
- Line boring processing was performed to ensure the roundness of the bearing journal while maintaining the increased axial force.
- The most appropriate main bearing and connecting rod bearing are used after many tests.
- Reduce torsion vibrations by using the provided crank damper developed only for VR43 engines. (Accessory part)
It improves the driving comfort on the street by significantly increasing the low-speed torque by assuming the street use.
For users who often drive on the circuit or high-power drive, HKS recommends the following product.
COMPLETE ENGINE VR38 4.3L STEP Pro → Detail
COMPLETE ENGINE VR38 4.3L STEP Pro+ → Detail
HKS crank damper only for VR4.3L
(Cooperatively developed with ATI PERFORMANCE PRODUCTS)
Billet piston using A2618 material with high high-temperature strength.
Connecting rod bearing superior to the load capacity to improve the durability at high torque.
The billet crankshaft reduces torsional vibrations, weight-saving, and high-response performance using the high-efficient counterweight.
Increasing the axial force by using the main stud bolt with an increased size thread.
It also ensures the roundness of the bearing journal by line boring.
|Compression Ratio (t=0.8)
|Allowable Rotation Speed
SHORT BLOCK VR38 4.3L STEP3
|Provided the clearance for the crank
|Increased the main bearing screw size
|Enlarged bore and counter boring in the ladder beam bearing cap
|Main bearing journal line boring
|HKS M12 stud bolt (625+)
|HKS billet, Molybdenum coating
|Fillet weld WPC treatment
|Connecting Rod Bearing
|Stock, WPC treatment
|HKS product for VR43