Two years post completion of my body off restoration, I developed a rod knock when the engine is started which completely disappears after oil pressure comes up to greater than 5psi, usually only a few revolutions of the crank. But, it is getting louder and I am not liking it. The current engine is a stock bore 235 from a 56 chev. passenger car. I should of looked in deeper during the restoration but it had great compression and only touched the upper end at the time which included a valve grind and new seals and a knurled guides, plus a change to a solid lifter cam.. I took the cheap way and should of pulled the pan and looked at bearing clearances but alas, I didn't and now faced with lifting an engine out and in again over my beautiful fenders.

Why I have the engine and transmission out, I will also go into the sm420 and replace third gear and the counter constant mesh gear too. Also a good time to check the clutch and flywheel.

I have finally found a 261 cu in engine, been looking for over 2 years. The block was bored .030 and I have since assembled it and it is awaiting the 848 head that I am currently running on my 235.

1953 Chevrolet 3100
261 cu inch, sm420, 3.55 rear, torque tube still,omaha orange, still 6 volt, RPO green glass, side carrier spare, all done
In the DITY Gallery
Video of the 261 running

1964 GMC 1000
305 Big Block V6, sm420, the next cab off restoration