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Discussion Starter #1
I want to install an S&S motor on my 1988 heritage FLST, how can I tell which motor will fit my bike if buying from private party? Does anyone here have an S&S motor for sale, bigger than 80" and smaller than 124"?
Thanks
Ride Safe
 

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Any of the S&S Evo motors will bolt in. "Fit" depends on the physical deminsions. IIRC, one or two may be kind of tall.
 

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Study the other relevant details since you'll have the opportunity to upgrade other 1988 parts which are inferior to later pieces, like the transmission, and Softail parts are plentiful and reasonably priced. It's an easy machine to work on. The easy way is take your time, get all the parts to replace the drivetrain, then swap it all in one shot. The later splined shaft transmission and far superior Denso starter (more powerful stock than the 1988 stock Hitachi and with many even stouter aftermarket options) are effortless to install since you'll have the engine and primary drive removed.
 

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good advice so far,,, you should listen,,, the later model transmissions take the late clutch,, and the later primary allow the newer starter as mentioned,,, the stock clutch cannot handle a 124,, or any of the super sidewinder or super sidewinder+ engines.. honestly ive found the 117" engines to be durable and produce excellent power,,, much more than most riders can utilize to its full potential..
 

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Discussion Starter #7 (Edited)
Update to the S&S question.
I found an S&S 113 Motor with 9000 miles
will be exchanging my 80" evo which will go into another frame.
Thanks to everyone for your input.
 

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You'll be quite happy with that motor.

It'll make you throw rocks at the 80'.

Sent from my SM-A102U using Tapatalk
 
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