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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Jul 2002 Posts: 188 Member | | Member Joined: Jul 2002 Posts: 188 | Got a 50 3600 that came with a 235 in it. When I run the numbers it turn out to be 1956 235. The head is stamped 848. In the swap meet there is a reference to a high compression head 848. What do I have? Is 848 a different head than normal. I currently have motor/trans out to do work on de-rusting frame and repairing fire wall and floor. I had no plans to work on the motor since it runs good and doesn't smoke. While I have mtr. out I was going to pull the pan and clean out any gunk in there. Any thing else I need to do? I back flushed the cooling system before I pulled out the mtr. and will take radiater to shop to be rodded out | | | | | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | The '848' is the best factory head for the 235, it offers the highest compression and flow. It is also the most common. Every 235 I've ever seen comes with one. The 261's used a differant head with lower compression so an 848 is desirable swap onto a 261 after drilling the steam pocket holes out.
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