big bore
#2
Go Here:
https://www.hdforums.com/forum/engin...35k-miles.html
I just tore my 120" down to check for wear. 45k miles on the bike, 35k miles on the build to 120".
https://www.hdforums.com/forum/engin...35k-miles.html
I just tore my 120" down to check for wear. 45k miles on the bike, 35k miles on the build to 120".
#3
depends on how radical you build it Dalton and phil ride their bikes all over the country. i tear mine down well my builder does it for me every yrjust to check and over 10,000 miles and over 350 dyno runs not a problem. this year tho i have had not as much chance to ride as i wish i could of.
#4
#5
As already mentioned, the skirts are not really that short, and the OE cases are absolutely fine.
We build a good amount of 117", as well as 124", as both share 4 1/8" bores.
As long as they are maintained, they are quite a good engine.
Have them towing trailers, and also no problem with cross-country trips, loaded down.
Scott
We build a good amount of 117", as well as 124", as both share 4 1/8" bores.
As long as they are maintained, they are quite a good engine.
Have them towing trailers, and also no problem with cross-country trips, loaded down.
Scott
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#8
Did a 124" engine, stock cases, S&S cylinder kit and crank, R&R Stage 5 heads. The guy called me from Amorillo Texas in July with 75,000 miles on it, broke a valve spring and commented on how good (clean) the piston tops/combustion chamber looked. Rode East to coast then back home to Southern Cal. Put in a set of +.010" pistons at 85,000 miles and rode to Bonniville and set two land speed records.
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