I might buy me a bare 454 block from my uncle. I have the choice of 2. one is a 75-87 block and the other is a 68-74 block. I belive that was the years cant remember the casting numbers Ill have to look at them again in the next few days. Which one would be better for maybe a future turbo setup? Is there any difference? They are both 4 bolt mains.
79 Chevy K-10
4" lift, 33's, 350sbc
88 Turbocoupe
92 Explorer (working on 2.3T swap)
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