apb Posted July 30, 2008 Share Posted July 30, 2008 I have a nailhead in a '55 46r with a block sn I can't figure out. Based on the distance of the manifold bolts I think it is a 264 or a 322 but not sure which. The car should have a 264 but I was told it is a 322.The block serial # is I3074204 Link to comment Share on other sites More sharing options...
RivNut Posted July 30, 2008 Share Posted July 30, 2008 Perhaps this can help.http://www.buicks.net/shop/reference/engine_ident_53_58.html Link to comment Share on other sites More sharing options...
apb Posted July 30, 2008 Author Share Posted July 30, 2008 Thanks Ed, I am aware of that site but can't find anything that seems to match up. Perhaps I'm not looking at it correctly and someone can explain it to me. Link to comment Share on other sites More sharing options...
Guest imported_MrEarl Posted July 30, 2008 Share Posted July 30, 2008 the last number in the ID signifies which series the engine is for. So in your case the 4 would signify a Special. 5=Super. 6=Century, 7=RoadmasterAre you sure that first digit 1 isn't a 7 ? Link to comment Share on other sites More sharing options...
old-tank Posted July 30, 2008 Share Posted July 30, 2008 The 322 had a harmonic damper and the 264 had a simple pulley at the front of the crankshaft. Also all 322's in 55 had a 4-barrel carb. The manifold and carb could be changed, but not the damper/pulley without creating balance problems.Willie Link to comment Share on other sites More sharing options...
apb Posted July 30, 2008 Author Share Posted July 30, 2008 Actually the first character is not a 1 but is the letter i.The list shows a - between the last numbers but I don't have that.I believe the engine has a pully on the front and not a harmonic damper, that said the engine is not without some vibration. I had written that off to not having the proper balance weights on the torque converter and the trans has been replaced but could it be a combination?The paint on the pully does look like it has been with the engine for some time. Link to comment Share on other sites More sharing options...
Bhigdog Posted August 1, 2008 Share Posted August 1, 2008 <div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body"> that said the engine is not without some vibration.</div></div>When I restored my 55 Olds the engine/drive train had a nasty vibration that I could not figure out to save my a**. Finally discovered that someone, at some point in time, had replaced the 55 harmonic balancer with one from a 57. Those engines are balanced totally differently. The point is just because it has a part on the car and it looks like it's been there a long time it still may not be correct........BobPS. A big thanks to Damper Doctor for spending a lot of time helping me get to the bottom of the problem and accepting the 57 damper as a core for a rebuilt 55. Link to comment Share on other sites More sharing options...
apb Posted August 1, 2008 Author Share Posted August 1, 2008 Here hear to that. I am very aware that you can never tell what you really have on some of these cars that have been patched together.At least I don't think it came from Cuba. Link to comment Share on other sites More sharing options...
Bhigdog Posted August 1, 2008 Share Posted August 1, 2008 <div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body"> At least I don't think it came from Cuba.</div></div> If it did I'm betting there's no shotage of local folks who could talk to it. 8-)...........Bob Link to comment Share on other sites More sharing options...
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