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« on: July 28, 2006, 08:33:51 PM »
After dissassembling my engine in my 69 z. I found that the connecting rods had the pressed 'O' on the rod cap. But to my
surprise they had pressed in pins. I began a quest to find out if 69 z/28's came from the factory with full floating or pressed in
pins. Since I currently work at a GM dealership, I asked the senior techs have they ever seen from the factory full floating pins
in the 69 z/28 or any other performance small block. Their response was no. An interesting response. So, I then called up to
six different machine shops and ask to speak to technicians who had been in the business since the late 1960's. I posed the
question to them as well. To my surprise every single one of them stated that from the factory they had never seen full floating
connecting rod pins in the 69 z/28 302 engine. So, I wonder if Chevrolet had originally intended for the 69 302 to come with
full floating pins but at the last minute changed their minds to save money. I also had any opportunity to look at a parts book
and I did see a listing for piston pin retainers for the 68 302, no idea if it's late or early.
So, that's my question did the 69 z/28 come with full floating pins from the FACTORY. If my research is correct they came
with pressed in pins.
Call your own local machine shop and ask for yourself. Is it fact or fiction?
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