Dirty Dingo adjustable engine mounts are made for installing a Gen III or Gen IV LS engine into 1988–1999 2WD OBS Chevy and GMC trucks.

Each mount is CNC laser-cut from 1/4-inch-thick 1050 high-carbon, cold-rolled steel. They are formed with a precision CNC press brake and a large-radius die to help reduce stress at the bends.

The slotted design gives you more control over engine placement. The engine can be moved up to 2 1/2 inches forward or 1/2 inch rearward from the factory bellhousing position. Once properly tightened, the mounts hold the engine securely, even in high-horsepower applications.

These mounts work with the factory rubber clamshell-style mounts on the truck’s frame. They can be used with many manual and automatic transmissions, including:

Powerglide, TH350, TH400, TH700R4, 4L60E, 4L65E, 4L70E, and 4L80E, 6L80-90, 8L8-90, 10L80-90.

Each kit includes a left and right mount, new cross bolts, and high-quality Grade 8 zinc-coated hardware.

Important Information

• Sold as a pair: driver and passenger side.
• “D” marks the driver-side mount.
• “P” marks the passenger-side mount.
• The arrows must point toward the front of the truck.
• Mounts are raw steel and are not painted.
• Will not fit Dart aftermarket engine blocks.
• Clears factory LS truck oil pans. No special oil pan is needed to clear the factory frame or steering.
• For lowered trucks, we recommend using a 1998–2002 Camaro oil pan or Holley 302-2 oil pan.

Air-Conditioning and Alternator Fitment

These mounts will clear the factory LS truck low-mount A/C compressor. However, the engine will not be able to slide rearward because the mounts will contact the A/C compressor bracket. This places the engine about 2 1/2 inches forward from the original bellhousing position.

These mounts will not work with Corvette, Camaro, or GTO low-mount A/C systems.

A 1998–2002 Camaro low-mount alternator setup may be used in some applications, but engine adjustment may be limited.

WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.p65warnings.ca.gov

ALUMINUM: Most of the aluminum alloys used today contain some level of lead, usually less than .1%. Lead is known to the state of California to cause cancer and reproductive harm. Most aluminum alloys are physiologically inert in their solid form, and the lead is contained within, however user-generated dust and/or fumes may pose a hazard if inhaled or ingested. Heating beyond a certain temperature may also provide avenues for exposure.

STEEL (steel bolts): Steel is an iron alloy with several metals including Nickel and Chromium. Both Nickel and Chromium are known to the State of California to cause cancer and reproductive harm, respectfully. This warning applies to stainless steels as well.