Hey guys I have a 1970 buick lesabre custom 455 (what a title) anyway's im rebuilding the engine and wanted some input. I've got a 2.73 rear end just for reference. She's all stock and looked great when we took her apart. unfortunately 1 cylinder had a scratch in it bad enough to need boring. Got a local machine shop boring hopefully only 20 over, 30 if needed, but we'll see i geuss. I know the 70 heads are supposedly the best stock heads other than the stage 1's and that my block is the weaker of all the different years and it's oiling passages/pickup tube are suspect at best. All that said, the machine shop im using doesn't know buicks (if anybody knows one in or around arkansas let me know) so i might try to get him to do the oil pickup mod but probably not the oil passage mods....besides the ta performance guys told me it wasn't really necessary for my purposes. I personally might use a dremel to align the main bearing oil holes as their not all the way lined up. yes er no on that one? going with repro cast pistons couldnt find any better for the price can you? Timing cover looks cracked and a bit pitted but wasnt giving me any problems the year ive owned the car and been driving it so prolly throwing that back on. SHould i have the block decked or the heads shaved? What cam i was thinking small like maybe ta112 to keep my powerband down low. Im sure this is enough to take in for now thanks for any info fellas.