Mystery Plug
Far as I’m concerned Ultima was the absolute bar none best cases made. I’ve had S&S, Delkron and STD. Didn’t know how many cracked S&S 113 heads are out there… but a bunch.. don’t know how many race bearings spin in the case and don’t hold from S&S but a bunch. Don’t know how many STD heads were machined like they were core shifted and you spent double the money fixing them.. but a bunch. You know the simple 1981 heads they copied and mass produced with the core shift.
‘I’ve never seen a cracked Ultima head, main bearing either. Not to mention their rods are top notch. The only questionable things really from Ultima were an early defective run on pistons and lifters.. there was also a couple years the rocker arms were questionable. All in all I’d take Ultima over any other aftermarket Harley regardless of price.
Last edited by Rains2much; Oct 7, 2025 at 11:39 AM.
Far as I’m concerned Ultima was the absolute bar none best cases made. I’ve had S&S, Delkron and STD. Didn’t know how many cracked S&S 113 heads are out there… but a bunch.. don’t know how many race bearings spin in the case and don’t hold from S&S but a bunch. Don’t know how many STD heads were machined like they were core shifted and you spent double the money fixing them.. but a bunch. You know the simple 1981 heads they copied and mass produced with the core shift.
‘I’ve never seen a cracked Ultima head, main bearing either. Not to mention their rods are top notch. The only questionable things really from Ultima were an early defective run on pistons and lifters.. there was also a couple years the rocker arms were questionable. All in all I’d take Ultima over any other aftermarket Harley regardless of price.
Note; It does seem that S&S is on a Downward Trend most Recently...But, Maybe (as has happened in the Past) Maybe Top Management will change back to where it Was!!
Last edited by Racepres; Oct 8, 2025 at 07:34 AM.
Basically EL Bruto motors were the engineering marvel that at one time was TP Engineering. Ken Fancis left TP Engineering and Joined Midwest to design, market and manufacture Ultima.
Last edited by Rains2much; Oct 8, 2025 at 01:58 PM.
”some” parts (just like S&S at times) are parts made by someone else like pistons and lifters… and those parts might be built anywhere. Ultima used USA forgeries for cases, heads and many other components. The machine work was done in Missouri in-house. The assembly was done in house in Missouri. And when they have had problems with the bad batch of pistons and lifters, guess what, they were made by other vendors, not themselves. The same as many companies using Ross or other brand pistons.
Last edited by Rains2much; Oct 8, 2025 at 01:59 PM.











