80LS1T Posted November 20, 2002 Share Posted November 20, 2002 How mush would it cost just to have my LT1 block clearanced for 400 crank? Thanks, Guy Quote Link to comment Share on other sites More sharing options...
silicone boy Posted November 20, 2002 Share Posted November 20, 2002 Doesn't cost as much as you think. I think it cost me just over $100. However, I still had clearance problems between my crank (for a 383 stroker) and the camshaft. I had a small base circle cam custom made, and I still had clearance issues. I had to grind the connecting rods a little. Hope it isn't out of balance. Quote Link to comment Share on other sites More sharing options...
Zfreak Posted November 20, 2002 Share Posted November 20, 2002 Silicone Boy is right, the big problem is between the cam and shoulder on the rods. Assemble the motor, grind the shoulder on the rods for clearance between the rods and the cam, them take it all apart and have the rotating assembly balanced. As for the block, I used a dye grinder. You can do all of this yourself to save money at the machine shop. Good Luck Quote Link to comment Share on other sites More sharing options...
silicone boy Posted November 20, 2002 Share Posted November 20, 2002 I have to agree with Tbuck. Even after getting my block back from the machine shop where it was supposedly clearanced, I still had clearance issues. I had to finish it off myself. Like they say, if you want it done right, do it yourself. Quote Link to comment Share on other sites More sharing options...
grumpyvette Posted November 20, 2002 Share Posted November 20, 2002 MOST CLEARACE PROBLEMS COME FROM USEING (I) BEAM STYLE RODS LIKE THESE as the inner rod bolts upper end can hit the cam and the lower outter bolts nut hits the oil pan rail area useing (H) style rods like these with bolts that screw into the rods without nuts solves most but not all of the clearance problems and makes the grinding necessary on the pan rail much less in depth plus these rods can be comonly ordered with 7/16" ARP rod bolts that far exceed the strength of the 3/8" rod bolts in the (I) style rods Quote Link to comment Share on other sites More sharing options...
silicone boy Posted November 21, 2002 Share Posted November 21, 2002 I wish I would have known about the advantages of the H beams before I started my build, but then, that's why I'm doing my own assembly. I'm learning by trial and error, mostly error Quote Link to comment Share on other sites More sharing options...
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