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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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#29504 11/08/2002 4:04 PM | Joined: Nov 2002 Posts: 10 Member | | Member Joined: Nov 2002 Posts: 10 | My 216 packed it in and I am taking this opportunity to swap it for a 235 (46 GMC). A friend of a friend gave me an engine that appears to be very similar to the 216. The casting number, #2135412, comes up as a 248,270. Is this a 248? or a 270? My second question - The 216 flywheel was held on with 6 bolts and this other engine uses only 4 bolts - Is there an adapter available? or should I be looking for another engine?
46 GMC
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