The mounts on the left are for 2WD models. The mounts on the right are for 4x4 trucks. Notice the slotted mounting holes, which allow adjusting the motor position rearward by up to 1-3/8" and side-to-side by up to 1/2" so that you can position the engine exactly where you want it. The two sets of "slots" on the ears are because the 2WD Blazers have different mounting requirements than the 2WD trucks.

These mounts are designed to be used with the stock S-10 2.8 V-6 mounts, and are made of 1/4" mild steel, except for the base plate on the passenger's side mount, which is 5/16" thick. Some companies use thicker steel or gusset the mounts, but this causes problems when tightening the mounting bolts, because the "ears" on the mount will not pull in easily and clamp properly.

The mounts offset the engine to the passenger's side to improve steering shaft/exhaust manifold clearance. On the 4x4 models, offsetting the engine allows using the offset oil filter adapter, instead of a remote oil filter.

For those who want to make the mounts themselves, the drawings of the motor mounts are in the Chevrolet S-10 Truck V-8 Conversion Manual.

A Better V-8 Conversion from a Better Motor Mount Design—

The reason for the rectangular hole in the passenger side motor mount is so that the shell of the 2.8 V-6 mount can poke through the mount, and allow the engine to be positioned lower than other designs. This also allows positioning the engine more toward the passenger's side.

The reason to mount the engine low is to make room for a large engine-driven cooling fan. Another reason is that it reduces the amount of transmission tunnel mods required to install the V-8. It also keeps driveline angles closer to stock than other designs.

The reason to mount the engine toward the passenger's side is to improve the clearance between the driver's side exhaust manifold and the steering shaft. On 4x4 trucks, mounting the engine toward the passenger's side allows using the Corvette LT1 offset oil filter adapter (from 1992-1996 Corvettes) to avoid driveshaft/oil filter clearance problems.

For those who want to make the mounts themselves, the drawings of the motor mounts are in the Chevrolet S-10 Truck V-8 Conversion Manual.

See More motor mounts...