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4.6 engine build

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  #21  
Old 02-13-2015, 07:25 AM
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well, I was going through my big box of bits. took a shopping list of stuff I do not have, yet.
cam bearing is on the list. ab has a closeout on unfinished..........but then I saw that they have a finished set. how does that work? what gives? are they saying that it is pre sized and a universal, with in spec, option?
 
  #22  
Old 02-13-2015, 07:33 AM
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4.6 crank and rods. pistons 4.0
 
  #23  
Old 02-13-2015, 08:17 AM
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can't say for sure about the cam bearings, i have alway just have the machine shop replace them; after hot tanking they are junk anyway. what did you have chevy valves and beehive spring installed in the heads? i assume you are going to gasket match the heads and intake, if so make sure you have a couple gaskets you dont want to open them to only fit one set.
 
  #24  
Old 02-13-2015, 08:20 AM
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i did see ab has a newer type of cam bearing, perhaps it will help with the oil pressure loss on #7 & 8.
 
  #25  
Old 02-13-2015, 09:07 AM
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Originally Posted by drowssap
can't say for sure about the cam bearings, i have alway just have the machine shop replace them; after hot tanking they are junk anyway. what did you have chevy valves and beehive spring installed in the heads? i assume you are going to gasket match the heads and intake, if so make sure you have a couple gaskets you dont want to open them to only fit one set.
yes sbc valves. 41.4mm intake 35.5 exhaust
no beehive. crower tung. dual springs were used. the numbers worked great. Valve Springs . machine shop did a great job fitting the larger diameters.
cam is crower 53231



yes I will gasket match...would hate to defeat the matching that was done.
 
  #26  
Old 02-13-2015, 09:09 AM
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just talked to a plaid suit at ab. they said that bearing set is ready to install.
I didn't think you could universally fit cam bearings. is this possible? if so, easy solution
 
  #27  
Old 02-13-2015, 09:45 AM
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the new cam should have a xyz size mains and the the inside dia. of the new bearing shell is xyz, i guess you can just remove and install stock dia. bearing shells.
i suppose if you have not done a lot of line boring on the block, it should be ok.
 
  #28  
Old 02-13-2015, 10:09 AM
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okay. just pulled the trigger on the finished set. needed a rear main, too.
 
  #29  
Old 02-13-2015, 11:18 AM
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rear seal......better results with genuine or is there a better aftermarket?
 
  #30  
Old 02-13-2015, 11:32 AM
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wont know but i would rtv it and the crucifix seals
 


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