This newly designed adapter plates will allow you to bolt a Gen 3 or Gen 4 LS engine into the place where a 4.3 V6 came factory. 2000 to early 2007 Chevrolet and GMC trucks use different front cross members that are welded in and do not accommodate the LS engine mounts. Will not work with late 2007 or newer V6 mounts. These adapter plates bolt to the LS engine and re-use the factory V6 engine mounts. CNC laser cut from .250 P&O cold roll steel. Grade 8 bolts and washers included. This is a set for left and right engine mounts. You will need to use the factory mount plates. These are GM part numbers 15732463 (Driver's side) and 15732464 (Passenger side).
* Will NOT fit ZR2 chassis trucks.
* Sold in pairs, left and right. "D" is the Drivers side, "P" is the Passenger side.
* Low mount alternators will not clear the S10 steering box.
* Will fit with Milodon #31083 S10 4X4 oil pan. Additional Milodon parts include #18291 Oil Pickup Tube, #21575 LS & Gen III Oil filter relocation kit, #85002 Oil Pan Bolt kit.
* This will fit with S10 LS conversion headers.