Thread: B.B. ID'ing
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Old 09-02-2012, 07:17 PM   #3
wilbilt
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Location: Northern California
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Re: B.B. ID'ing

Tonawanda plant, built April 4 1973. 427 truck engine for manual trans. 230 HP. Application: L-43 60.

Almost certainly a tall block. As I recall, the tall blocks used 4-ring pistons.
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1971 GMC C2500 Custom Camper - Second Owner.
350/TH350, Dana 60 Rear.
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