Winters snowflake aluminum intake manifold for L88 V8 big block 396 427 Chevy Corvette Chevelle Camaro applications – casting number 3933163 dated 12.23.68 as shown - Intake has been cleaned up in “as found” condition as shown – cleaned up with natural aluminum finish as shown – a few stainless steel thread inserts installed for better strength over the years - all threads in great shape – runners have been professionally ported as shown – no major corrosion damage