This kit contains ACL Race series rod and main bearings STD size and ACL Cam bearings for 2003 on LS engines. If your engine is 2003 you will need to measure the cam bore to ensure it is 2.347" in positions 1 and 5. For 2004 or later engines this kit is correct. Suits all L98 LS2 LS3 L77 L76 LY6 engines Suits LS1 2003on with cam bore 2.347" in positions 1 and 5 See below for the cam bore differences.
1st Design- Part # CH10: Fits 1997-2003 engines where the block housing bore on positions 1 and 5 measures 2.3270"" & bearing width is: 0.630"
2nd Design- Part # CH23: Fits 2003-2007 engines where the block housing bore on positions 1 and 5 measures 2.3470" & bearing width is: 0.630"
3rd Design- Part #CH25: Fits 2003-2013 engines where the block housing bore on positions 1 and 5 measures 2.3470" & bearing width is: 0.775"
Here at Malex Motorsports all of our items are in stock in our Sydney based store, ready to ship or pick up.