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#19
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![]() Quote:
Other possible XH 400's are from 1970 and 1973. The block casting number of 500557 and the cast date codes should clear this up.
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1976 LeMans B09 Freeway Enforcer, 455/M40 Smokey 1977 Trans Am, 400/M21 Black/Gold Bandit. 44K actual miles 2017 Sierra SLT 1500 Z71 4X4 ![]() 2019 Canyon SLT Crew 4X4 ![]() |
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