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#1
04-23-2014, 05:29 PM
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Give me some odds
I have a 1968 big car 400 engine that was an automatic in my car now. I would like to switch the car over to a manual trans. What would be the odds that the crank is drilled for the pilot bushing
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#2
04-23-2014, 07:36 PM
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Pretty damn good. I believe they are all drilled. Not positive though.
__________________
Paul Carter Carter Cryogenics www.cartercryo.com 520-409-7236 Koerner Racing Engines You killed it, We build it! 520-294-5758 64 GTO, under re-construction, 412 CID, also under construction. 87 S-10 Pickup, 321,000 miles 99Monte Carlo, 293,000 miles 86 Bronco, 218,000 miles |
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#3
04-23-2014, 07:44 PM
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50/50
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#4
04-23-2014, 07:45 PM
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NBD anyway.You could always get a bushing turned to fit.Tom
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#5
04-23-2014, 07:56 PM
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#6
04-23-2014, 08:20 PM
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You know I;ve read some of the other threads on this and meant to chime in to them. I've never seen one that wasn't, currently I have a dozen or so cranks on hand and they are all drilled. I'm not an engine builder or a guy who would see a ton of cranks just a hobbyist whos taken apart his fair share of engines.
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" Is wearing a helmet illegal" Mike Kerr 1-29-09 |
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#7
04-24-2014, 02:33 AM
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the latter engines were more prone to that cost saving measure. I have had a few late 70's cars that did not have the hole but just about everything before 73 had the hole.
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#8
04-24-2014, 05:38 AM
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x2' I have neve seen a pre 74 crank that was not drilled for it.
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#9
04-24-2014, 06:42 AM
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Might not be common for the early engines, but I had a crank in a 67 400 block many years ago that wasn't cut for the pilot bearing. Discovered it after the rebuild was complete and the engine was in the car.
Funny thing is it looked like it was cut but the bearing would not go in. A mic showed the hole dia was way under. Ended up having to pull the engine, remove the crank and put in on a lathe... I recommend checking with a bearing to be sure.
__________________
1969 Lemans vert, matador red, 462 CI, 3.07 12-bolt posi 1974 455 TA, admiralty blue/red interior HPP "cover car" - sold "The best way to show a car is to drive it" |
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#10
04-25-2014, 12:24 PM
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Thanks all, I guess I'm going to go for it
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#11
04-25-2014, 01:24 PM
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Your odds are very good, but I did have two pre-1970 cranks that were not machined for a pilot bearing. I didn't discover the first one until the engine was in the car, so I had a bushing turned down to fit. After that I checked all of my cranks, and I had one other one that got machined before I assembled the engine.
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#12
04-25-2014, 01:26 PM
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50/50
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#13
04-25-2014, 02:14 PM
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Decades ago I had a '67 Catalina 400 in a '66 GTO I bought and it had no pilot bearing or bushing at all. The hole in the crank was too small (slightly), so I had a bronze bushing machined to fit. It was not a big issue at all.
__________________
Jeff 
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