'70 Chevelle...probably not an L78

[Mr70]

Definitely not an L-78 Chevelle radiator.That build sheet speaks for itself..LOL
If the born with,he should show the rear end suffix,as well as the TH400 suffix tag.
They will indicate a 1970 L-78 Chevelle exclusive assembly.

..Well looking at the build sheet scraps,I was able to decipher LU upper & NT Lower radiator hoses,400 Battery.PL-53 air cleaner and PS & PT Trans cooler lines.As well as #109686 Body #,which isn't at all like the one shown on the cowl tag he shows.
Looks like his scraps of paper are from a 1970-1978 Pontiac Trans Am Build sheet with the L-78 engine option,shown below.