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Terry, NJ · 04-24-2018, 07:42 AM

Hey who says the A block is so great? They crack too! Go to any rebuilder and they'll tell you they have go trough 4-5 A blocks to get a good one.I think it's a combination age, temperature, clogged cooling systems, and too light iron in some places. The B blocks are even worse! However, The Russian blocks (GAZ) are free of this problem or so I'm told. I don't know about the German G-28 blocks. Some people say I'm wrong, but I believe metal "ages" even without external influences such as moisture, etc. This is especially true of castings.
Terry

04-24-2018, 07:42 AM	#33
Terry, NJ Senior Member Join Date: May 2010 Location: Bucks Co, Pa Posts: 3,740	Re: How much better is a B block than an A? Hey who says the A block is so great? They crack too! Go to any rebuilder and they'll tell you they have go trough 4-5 A blocks to get a good one.I think it's a combination age, temperature, clogged cooling systems, and too light iron in some places. The B blocks are even worse! However, The Russian blocks (GAZ) are free of this problem or so I'm told. I don't know about the German G-28 blocks. Some people say I'm wrong, but I believe metal "ages" even without external influences such as moisture, etc. This is especially true of castings. Terry