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Re: I.D.ing a big block head......
I looked through my books and one has the 346236 cc as 112.0 the vales are 2.06/1.72 the engine is a 454 from 1975-76 truck very small port .This info is from HP books how to rebuild your BB Chevy I found the info in the parts ID section under the cylinder-head casting numbers
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I was hooked on these trucks since 1982 when I drove my budys fathers 1968 Custum GMC 396 automatic dana 60 rear with a power lock diff what a ride more fun then we will we can ever tell!!
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