oem radiator for a 56 chevy
Or look at the F-body LS1 rad or the small 28'' truck radiators. The newer trucks have the larger 34'' radiator with E-fans stock.
& it has the inlet & outlet on the pass side. AND a set of LS1 fans will fit onto it if you decided to go that route.
go to rockauto.com & look up the spectra one, it will give you core dimensions (dont forget these do not include the tanks)



