mac1
06-06-2006, 02:40 AM
I just got my 409 long block back from the machine shop and am starting to put it together. 1st question. My machinist said when I start the engine to adjust the valves first with engine running before breaking in the cam. The valves were adjusted by him before I picked it up so I know they are pretty close to where their supposed to be. I have always broken in the cam first and adjusted the valves after a 1000 miles or so on my small blocks. What is the general consensus on this?
2nd question. I notice the three motor mount holes are much larger than the bolts which leaves allot of side play in the mount. Should I leave them loose a little until I get the engine in the car and bolted in and then tighten them up for better alignment? Heres a pic on the 409. I just slapped it together for the pics. It's a 656 block with ross 10.5 forged pistons, (netting 9.5 to 1 compression, with reliefs), 333 heads ported and polished with 209/ 172 valves. I had the head intake runners grinded out for my 463 intake for better alignment. The cam is a 3/4 race cam. I don't have the numbers on the cam at hand. I'll be posting more pictures in the next couple of days. Thanks, Mac
http://img.villagephotos.com/p/2003-9/394748/DSCF0065.JPG
2nd question. I notice the three motor mount holes are much larger than the bolts which leaves allot of side play in the mount. Should I leave them loose a little until I get the engine in the car and bolted in and then tighten them up for better alignment? Heres a pic on the 409. I just slapped it together for the pics. It's a 656 block with ross 10.5 forged pistons, (netting 9.5 to 1 compression, with reliefs), 333 heads ported and polished with 209/ 172 valves. I had the head intake runners grinded out for my 463 intake for better alignment. The cam is a 3/4 race cam. I don't have the numbers on the cam at hand. I'll be posting more pictures in the next couple of days. Thanks, Mac
http://img.villagephotos.com/p/2003-9/394748/DSCF0065.JPG