Trying to get an idea on what this is worth. SD-455 complete motor minus exhaust manifolds. This was a crate motor installed in car in 1976. Standard bore, ls2 intake with 72 date, 273 carb for 74 car. Correct dist. Motor is in car and running, has about 30k miles on it.Block is 490132 with 72 date but no stampings on front pad by water pump. thanks for any help
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