Secondary intake butterfly valve carbon freeze and oil cooler sandwich adapter leaks cripple mid-range acceleration on performance hatchbacks. The Acura Integra GS-R B18C1 1.8L L4 Remanufactured Engine eliminates intake airflow restriction throughout this commercial long block repower. This 4-Cylinder 170HP DOHC VTEC engine requires timing belt guide washer orientation verification before tightening the lower crankshaft pulley bolt.

High-pressure cast A356-T6 aluminum forms the rigid engine block displaying P72 and B18C1 bellhousing casting marks. Centrifugal cast iron liners pair with an 87.2mm stroke forged steel crankshaft and factory oil squirter jets. This Acura engine core demands a 12V 140A starter draw during cold morning tests. Dry weight measures 180 lbs, occupying a 23in length, 22in width, 25in height stance holding 4.3 quarts of oil.

Key Features of Acura Integra GS-R B18C1

Track enthusiasts buy Acura Integra GS-R B18C1 1.8L L4 Remanufactured Engine packages to eliminate bottom-end mechanical failures. Our industrial engine rebuild standard includes pre-installed timing gears, timing belt, water pump, and calibrated tensioner hardware.

- Cylinder bores measure 3.189in with diamond plateau hone cross-hatch finishes.
- Main bearing journal clearance holds at 0.0014in across the five-bearing crankcase.
- Factory-installed timing belt and tensioner eliminate valvetrain synchronization errors.
- Oil squirter jets spray lubricating oil under piston crowns to manage heat.
- Multi layer steel head gaskets eliminate combustion deck coolant leakage.
- This B18C1 commercial core receives magnetic particle crack inspections on all journals.
- Precision stellite exhaust valve faces stop seat recession under severe track heat.

Dynamometer Load Station Records

Automated brake cell test logs demonstrate that this B18C1 long block engine produces 170 continuous BHP and 128 ft-lbs of torque at 6200 continuous load RPM. Internal oil gallery pressure measures 56 PSI while oil sump temp settles at 193°F under full thermal loading. Exhaust gas temp tops at 1310°F along the manifold collector. Cylinder compression checks between 182 PSI and 190 PSI across all four cylinders. Crankshaft center journal runout holds within 0.0002in TIR.

Chassis Installation Application Boundaries

Intake manifold dual-runner vacuum actuator rods require 4 lbs of manual pull force to ensure free butterfly movement without binding. This high-output VTEC motor is not built for automatic transaxle conversions, mud bogging trucks, or commercial refrigeration pump skids.

- Drain initial break-in petroleum motor oil after 500 miles or 30 run hours.
- Inspect cold intake valve clearance at 0.007in and exhaust clearance at 0.008in.
- Torque cylinder head fasteners in sequence to 63 ft-lbs final specification.

Commercial Protection Crate Manifest

Built to the recognized Acura assembly standard, this crate engine carries a 3-Year 100,000-mile parts protection warranty. Every sealed wooden crate contains the long block core, water pump, timing belt assembly, oil pan, valve cover, oil pickup tube, and signed dyno load sheet.