The LT2 engine was unlike the other gen V LT engines due to its application, which is moved to the rear of the car in the Corvette C8. With the drastic change in car design from the front mounted engine in the C7 Corvette, GM changed the engine block to compensate. The block now has 3 bolt mounting flanges in two different planes where the engine mount connects to the block, vs the LT1 used a 4 bolt flange all in the same plane (flat surface). Next up since the headers went up, that means the coil packs moved from the valve cover down to the side of the block. GM added raised bosses on the block with each of the coil packs bundled in groups of two coils. In factory form the intake manifold is mounted on the engine "backwards".

Next the engine was a "dry" sump, and has a huge oil reservoir mounted to the front of the engine, vs the C7 had this oil tank on the firewall / fenderwell area. The dry sump system is unique compared to previous models since it added another stage to the oil pump, which causes a oil pump to be larger, therefore the timing cover, oil pan, water pump, and harmonic balancer are all unique to LT2.

The starter pad now has a slightly tweaked bolt pattern with one of the bolts moving around .07". The starter pad is also moved up around half an inch, since the LT2 has a small DCT flywheel. We did fix this so you can put a standard 168 tooth flexplate on this engine, which is a direct fit in height, by making a unique starter block that Powermaster produced for us, PWM-9509LT.

The next challenge in swapping this engine to a RWD vehicle is the bellhousing. On a classic SBC engine there was a bottom (LT2 deleted these) bellhousing bolt, then directly above that was dowel pin and another bolt, then came the barn shape of 3 bolts above this. The LT2 changed a couple of the top bolts here as well, so to swap in a rear wheel drive vehicle you will need our 551085-LT2 bellhousing adapter which allows any classic Chevy trans to be bolted to the LT2 engine.

Now lets talk about what did not change in the engine "block". The oil pan rail bolt pattern (other LT pans fit this. *oil pump pickup issues unless you get the pump changed). Cylinder heads, gaskets, bolts, and bolt pattern remained the same. Rear main cover has different shape but kept the same bolt pattern. The timing cover bolt pattern is different than other LT engines.