Original 70 Chevell big block rad hose

[Ls6 Ragtop]

Hi Guy,
Unfortunately you don't have what you think you have. I believe the part # you have is actually 3986380 which is a small block 71-72 Chevelle with A/C also used on some small block 71-72 passenger cars. 70 Chevelle big block used 2 different upper hoses depending on drivetrain and accessory options. 3932453 SV for HD cooling A/C or 4.10 rear axle and a 3917227 KY used on most 69 - 70 BB Chevelles w/o CAC or the heavy duty cooling package.
Hope this helps, Chris