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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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88 crankshaft

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Blake G

08-23-2006 07:48:46




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im trying to build my first puller, and trying to find more power, is there a crank like a 1650 with more stroke that would fit....or any other ways of getting more stroke with out having to weld the crank....im not looking for a extreme stroke as i want it to last, and is there any other easy conversions from any other tractor to my 88 for more power...thanks, any info is greatly appreciated




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RichB

08-24-2006 11:42:09




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 Re: 88 crankshaft in reply to Blake G, 08-23-2006 07:48:46  
offset the crankpin,you can run a 2 inch journal and use small block chevy rod bearings,I don't know what that gives for stroke,someone on here will though,A 377 is a good tough engine,5 stroke 4 bore,I have a 421 4.125x5.250 ttough as nails turns 2500 easily,I would go billet rods much more reliable than trying to weld up something.my email is open Rich



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Bryce

08-24-2006 13:54:22




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 Re: 88 crankshaft in reply to RichB, 08-24-2006 11:42:09  
My 77 is4.125 x5.25 using 77 rods .Just curious why you went with welded rods at that small of stroke?



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Blake G

08-23-2006 21:04:02




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 Re: 88 crankshaft in reply to Blake G, 08-23-2006 07:48:46  
its a gas and its a 1953 fleetline



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J Schwiebert

08-24-2006 03:53:09




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 Re: 88 crankshaft in reply to Blake G, 08-23-2006 21:04:02  
What length stroke are you thinking? How about a Super 88/880 crank and then having it offset ground to increase the stroke?



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Blake G

08-24-2006 10:03:17




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 Re: 88 crankshaft in reply to J Schwiebert, 08-24-2006 03:53:09  
if i were to use a super or 880 crank what would i have it off set ground to, and what rods and pistons would i use? thanks



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J Schwiebert

08-23-2006 12:59:51




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 Re: 88 crankshaft in reply to Blake G, 08-23-2006 07:48:46  
What length stroke are you thinking and is this a gas or a diesel and a Fleetline or a Super 88?



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dboll

08-23-2006 11:52:05




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 Re: 88 crankshaft in reply to Blake G, 08-23-2006 07:48:46  
88 and 1650 have the same 4 inch stroke



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D-Day

08-24-2006 21:02:25




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 Re: 88 crankshaft in reply to dboll, 08-23-2006 11:52:05  
That's true, but the 88/880 is a 4 main block, but the 1600/1650/1655 is a 7 main block. So if you used a 1650 crank, you need the matching block. It is also illegal at some pulls, I can't name any, but I know some of the NATPA pulls, depending on the division you run in, have to have the original style block and head. Not that I've ever been to an NATPA pull, but that's what I've picked up from this board.

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