Are the spigot lengths that fit in crankcase the same on the 100 kit for 88 the same as the 110 kit. I have a 4 3/8 in a 2001 can i drop a 110 kit on it ?
Thanks in advance.
They have to be the same. OEM 88" and 96"/103" cylinders all interchange in the early and late cases. The S&S cylinders are patterned after the OEM cylinders for fit.
Thanks Ohio i win the bet as a bloke tried telling me different . He said he read it in S&S cat i said the diff is in the Pistons
Only difference is the older cases need to have the piston skirt clearances checked in the bottom case for the increased stroke of the 43/8 crank from the 4in. My 2006 Dyna needed opening up deeper.
Bob
A good engine builder checks those clearances when changing the motor configuration.
Building a Stroker 101.
Quote from: Ohio HD on December 08, 2022, 07:19:37 AMA good engine builder checks those clearances when changing the motor configuration.
Building a Stroker 101.
Agreed and many many other clearances. Why I prefer to bench assemble a engine. Bob
Quote from: JSD on December 07, 2022, 08:19:17 PMAre the spigot lengths that fit in crankcase the same on the 100 kit for 88 the same as the 110 kit. I have a 4 3/8 in a 2001 can i drop a 110 kit on it ?
Thanks in advance.
Simple answer....YES.
I built a 110" using cases from '01 B, had the spigot holes bored for HD cyls., don't know if S&S are the same spigots. Had the cam journals bored for 1" Timkens, used '07 & up cam plate & hyd. tensioners. This way I have unlimited choices for '07 & up cams instead of limited choice for hybrids. For the "thru bolt" I used a 1/4" G8 bolt & locknut c/w hardened steel washers & o-ring each side. I tigged the cases to build up where the bolt goes through then machined flat to accommodate the washers then milled an o-ring groove in the thru hole so when the bolt is tightened it squashes the o-ring against the bolt.I just don't like the idea of the thru bolt being threaded into the aluminum case. A couple seasons on it now & no leaks & LOVE the power. :up:
He's talking about S&S drop in 4" cylinders. So no case boring needed.
Its the counterbore or lack thereof that is critical. This is illustrated well in the S&S instructions for the 100" kit. The skirts can hit the case at BDC