Lot 1693-MWK: 1987 Chevrolet Monte Carlo SS Aerocoupe

Great question! Just to clarify first - the 1987 Monte Carlo SS Aerocoupe actually came from the factory with a 305ci (5.0L) V8, not a 5.7L. However, many owners do swap in 350ci (5.7L) engines for more power.

For the stock 305 V8, the most common and effective performance upgrades include:

Bolt-on upgrades:

• Headers (Edelbrock TES or Hooker) and true dual exhaust
• Edelbrock Performer intake manifold
• Larger carburetor (600-650 cfm Edelbrock or Holley)
• Performance ignition system (MSD, high-voltage coil, 8mm wires)

Camshaft and valvetrain:

• Comp Cams XE262H or Edelbrock Performer Plus 3702 cam
• Roller rockers and performance valve springs
• Timing chain upgrade

Air and fuel:

• K&N air filter or cold air intake
• Jet kit for the carburetor

For a swapped 350 V8, the upgrade path is similar but with more potential:

• Long tube headers (fit great in the G-body chassis)
• Aluminum performance heads
• Bigger cam profiles (XE268H, XE274H)
• Higher compression pistons
• Performance intake and larger carb (750 cfm)

The 305 responds well to these mods - you can expect 50-100+ horsepower gains with a good header/cam/intake combo. Many owners report the jump from 180 stock hp to 250-280 hp with these basic upgrades.

Would you like me to help you find specific parts or similar cars with these modifications already done?