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Chevrolet - HO 350 CAMARO CONVERSION KIT (DISCONTINUED) | |
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Emission-legal conversion kit - The Chevrolet Race shop’s 1987 Camaro test vehicle equipped with an emission-legal HO 350 ran a quarter-mile elapse time of 13.83 seconds at 98 mph. (Discontinued) This page is still available for information only. Keys - scperformanceeng, gmperformanceeng, or gmgoodwrencheng for SC, GM, or Goodwrench engines. Use allengine for a complete list of all three. |
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ZZ4 PARTIAL ENGINE BASED ENGINES NAVIGATION | |
| GMPP ZZ4 Main Page | GMPP Fast Burn 385 |
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We have more GM and Chevrolet Performance Engines available. We have more GM Stock Replacement Long-block Goodwrench Engines available. We have more “Gen 3” and “Gen 4” Design Engines available. (LS1, LS2, LS6, LQ4, LS7) |
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HO 350 CAMARO CONVERSION KIT DESCRIPTION | |
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| P/N 10185077 - HO 350 Camaro Conversion Kit |
| GM has discontinued this kit. This page will remain for information only. |
| Chevrolet engineers have developed an emission-legal conversion kit to install a High Output 5.7-liter (350ci) small-block V8 in a 1982-87 Camaro originally equipped with an LG4 or L69 305ci V8 engine and a 700R4 automatic transmission. This coordinated package of components significantly improves vehicle performance while retaining all required emission controls. |
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HO 350 CAMARO CONVERSION KIT INFORMATION | |
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Performance: During development of the HO 350 Camaro conversion, a prototype HO 350 engine
equipped with a computer-controlled Quadrajet carburetor and all emission controls required for
this application, produced 308 horsepower (at 5000 rpm) and 365 lb-ft torque (at 3500 rpm). The
Chevrolet Race Shop’s 1987 Camaro test vehicle equipped with an emission-legal HO 350 ran a
quarter-mile elapse time of 13.83 seconds at 98 mph. Certification: When all components are installed as specified in the instruction manual, the HO 350 conversion meets emission requirements under EPA Memorandum 1A for operation in 49 states (excluding California). The conversion is also legal for sale and use in California under California Resources Board Exemption Order #D-278. Note the entire HO 350 conversion package must be installed exactly as described in the manual to comply with emission regulations. Also note that this conversion is certified only for the specific year models, engines, and transmission listed above. Installation: The HO 350 conversion is designed for “do-it-yourself” installation. A comprehensive instruction manual is included. Minor welding is required to install the exhaust system. The HO 350 Camaro conversion is a coordinated package of components that work together to improve vehicle performance. Major assemblies include: Engine: The heart of the Camaro conversion is the HO 350 Chevrolet small-block V8 (P/N 24502609). High performance engine assembly has been updated with new hydraulic roller camshaft profile, a low-profile dual-pattern intake manifold, revised valvetrain components, and other improvements. Air Cleaner: The HO 350 Camaro breathes through a dual-snorkel air cleaner. A “ram air” system channels cool air to the carburetor through flexible air ducts. Fuel Pump: A high-volume in-tank electric pump meets HO engine’s fuel requirements. The pump kit includes vent lines, a sending unit, and a wiring harness. An adjustable external regulator controls fuel pressure. Exhaust System: The HO 350 conversion package includes a low-restriction exhaust system with dual catalytic converters, high-flow exhaust manifolds with 2 1/4” outlets, a single 3” diameter tailpipe, and a transverse muffler. Calibration: The kit includes an engine control module (ECM), specially programmed PROM chips, a coolant fan switch, an electric spark control (ESC) module, and Quadrajet secondary metering rods. Transmission: A pressure regulator spring, boost valve, and servo assembly improve the 700R4 automatic transmission’s shift firmness. Rear Control Arms: Rear axle control arms with high-durometer (50K) bushings reduce wheel hop under hard acceleration. Technical Notes: Chart on following page. Installation and Service Manual P/N 12485074. |
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VEHICLE IDENTIFICATION | |
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The HO 350 conversion kit is designed for installation in
1982-87 Camaros originally equipped with LG4 or L69 engines. Due to differences in original equipment
in these vehicles, some of the components included in this conversion kit are not used with all
model year and engines. The parts required to install the HO 350 conversion are noted in the
following chart. The factory-installed engine is identified by a letter code that appears in the eighth place of the Vehicle Identification Number (VIN). In the following example of a Vehicle Identification Number the letter “H” is the engine code: 1G1FP3IH0LL10001 The following are VIN engine codes for 1982-87 Camaros with LG4 and L69 engines: Year: 1983-86, VIN: “G”, Engine: L69 Year: 1982-87, VIN: “H”, Engine: LG4 |
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5.7l HO CAMARO CONVERSION P/N 10185077 PARTS LIST | |
| Qty | Part Name | P/N | 1983-86 L69 (VIN “G”) |
1982-84 LG4 (VIN “H”) |
1985-87 LG4 (VIN “H”) |
| 1 | 5.7L HO Engine---ZZ4 | 24502609 | X | X | X |
| 1 | Instruction Manual | 24502463 | X | X | X |
| INDUCTION SYSTEM | |||||
| 1 | LH Duct | 14070917 | X | X | |
| 1 | RH Duct | 14070918 | X | X | |
| 4 | Screw | 11513801 | X | X | |
| 1 | LH Hose | 14073299 | X | X | |
| 1 | RH Hose | 14083990 | X | X | |
| 1 | Air Cleaner Assy. | 25043641 | X | X | |
| 1 | Nut, Wing | 25512090 | X | X | |
| 1 | Hot Air Tube | 00469506 | X | X | |
| 1 | Fresh Air Elbow | 3970070 | X | X | X |
| FUEL SYSTEM | |||||
| 1 | Fuel Pump, In-Tank | 25168719 | X | X | X |
| 1 | Strainer | 25055458 | X | X | X |
| 1 | Pressure Regulator | 10185094 | X | X | X |
| 1 | Bracket, Pressure Regulator | 10185069 | X | X | X |
| 1 | Outlet Fitting 3/4 Pipe to 3/8 Inverted Flare | After Market | X | X | X |
| 1 | Return Fitting | 10185093 | X | X | X |
| 1 | 3/8 Pipe to 3/8 Hose Fitting | 10185096 | X | X | X |
| CALIBRATION | |||||
| 1 | Controller, ECM | 01228079 | X | X | X |
| 1 | Calibrator, Prom 1982-84 LG4 | 24502457 | X | ||
| 1 | Calibrator, Prom 1985-87 LG4, 83-86 L69 | 24502456 | X | X | |
| 1 | Sensor, Knock | 10456288 | X | X | |
| 1 | Module, Elect. Spark Control | 16128261 | X | X | |
| 2 | Metering Rods, Secondary (AH) | 07033812 | X | X | X |
| 1 | Cooling Fan Switch (95C) | 03053190 | X | X | |
| EXHAUST SYSTEM | |||||
| 1 | LH Manifold | 14094063 | X | X | X |
| 1 | RH Manifold | 14094064 | X | X | X |
| 1 | Heat Stove, Plate | 14011063 | X | X | X |
| 1 | Heat Stove, Cover | 14101064 | X | X | X |
| 2 | Stud | 14042051 | X | X | X |
| 2 | Stud | 12338075 | X | X | X |
| 4 | Nut | 11516072 | X | X | X |
| 1 | Seal, Exhaust | 10220451 | X | X | X |
| 1 | Takedown, Dual Cat | 10185070 | X | X | X |
| 4 | Screw, M6.3-1.8x20 | 12337828 | X | X | X |
| 1 | Pipe, Air to Converter | 10077542 | X | X | X |
| 1 | Clamp, Air Pipe | 22505116 | X | X | X |
| 1 | Bracket, Converter Hanger | 10081609 | X | X | X |
| 2 | Bolt, Converter to Bracket | 11504596 | X | X | X |
| 1 | Intermediate Pipe, Muffler, Tailpipes* | 24502461 | X | X | X |
| TRANSMISSION | |||||
| 1 | Spring, Pressure Regulator | 08639164 | X | X | X |
| 1 | Valve, TV Boost | 08634940 | X | X | X |
| 1 | Servo, Piston | 08642079 | X | X | X |
| 1 | Servo, Housing | 08642079 | X | X | X |
| REAR SUSPENSION | |||||
| 2 | Lower Control Arm | 10164151 | X | X | X |
| DECALS | |||||
| 1 | Decal, Under hood Tune Up Label | 24502462 | X | X | X |
| 1 | “Premium Fuel Only” Decal | 25633060 | X | X | X |
| X = Part used in conversion. * For replacement exhaust system components, contact: Flowmaster Inc. 2975 Dutton Ave., Unit 3, Santa Rosa, CA 95407, 707-544-4761 |
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