After I adjusted my clutch, I did run my 355 conversion on my jack stands. I only did it for a minute to hear if anything was crunching or grinding, but all was quiet. Then I just did test drives like 25-40mph, maybe 15-20 minutes. I let it rest after each test. Actually, it was only one test drive with a day rest in between. Probably not necessary.

Last edited by UtahYork; 07/13/2026 1:25 AM.
~ John in Utah
1946 1/2Ton w/4-speed manual transmission w/1960 235 engine
Here We Go
Follow in his DITY Bay

- If you think about it, it has been one year ago today!