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81 lowrider

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Old Aug 15, 2012 | 06:29 PM
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81lowriderfx
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Default 81 lowrider
I have a 81 lowrider and rebuilding top end and want to know how big I go without having to touch the bottom end?
 
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Old Aug 15, 2012 | 07:31 PM
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I thought this was some type of HA reference
 
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Old Aug 15, 2012 | 08:15 PM
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how bout some pics i get tired of seeing the same old (i mean new) dynas
 
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Old Aug 16, 2012 | 12:56 AM
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does it still have the shovel in it? or was it swapped out?
 
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Old Aug 16, 2012 | 12:59 AM
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'81 ... 80ci shovelhead motor ...? Not sure about just going with a big bore ... that is what the standard big bore size is ... I know 93" is a popular upgraded motor, but I think that also requires a stroker crank, as well ...

I'm with Brown Dawg ... let's see some pics ...

R/
'Chop
 
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Old Aug 16, 2012 | 01:25 AM
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i would stay under 10 to 1 and under 86ci
[IMG][/IMG]
[IMG][/IMG]
 
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Old Aug 16, 2012 | 10:42 AM
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So Sonny ... you're saying you don't want to bore out the spigots too much ...? LoL ...

Were you riding that when the front side of the engine case caved in ...???
 
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Old Aug 16, 2012 | 08:50 PM
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no started it on the line after a 1/4 mile run , heads blew off . should have purged the nos before i started the bike
 
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Old Aug 16, 2012 | 08:57 PM
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told myself i would never build a big inch shovel again but i got this and some t&o flywheels for my birthday last year so im building a 96 ci shovel . if you notice you can see my t&o heavy flywheels in my blown up motor
[IMG][/IMG]
 
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Old Aug 16, 2012 | 11:22 PM
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Thing's massive ...

Truett and Osborne ... two of the big names in high quality parts for the old stuff ...
 
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