A/C 327 cars had the the same radiator as the 409 cars. The factory radiators had a three row core but, the tubes were larger, more surface area to cool with four rows then three. The core dimensions are the same, internally is the difference. I think their radiator is around $400 plus shipping. When you order ask for Bruce. they are the best vendors for these cars, mostly deal in 409's and 348's
John
1954 Belair Sport Coupe 1960 2 door Impala Hardtop 348/340HP 4spd 1962 2 door Impala Hardtop 409/409 4spd 1962 2 Door Biscayne Sedan 327/250 Auto 1977 Monza Mirage 305 4 Speed 1988 Celebrity Wagon 2018 GMC Sierra 2500 HD Diesel
A/C 327 cars had the the same radiator as the 409 cars. The factory radiators had a three row core but, the tubes were larger, more surface area to cool with four rows then three. The core dimensions are the same, internally is the difference. I think their radiator is around $400 plus shipping. When you order ask for Bruce. they are the best vendors for these cars, mostly deal in 409's and 348's
Only the 300hp 327s John. 250hp 327s with A/C did not get that radiator.
A/C 327 cars had the the same radiator as the 409 cars. The factory radiators had a three row core but, the tubes were larger, more surface area to cool with four rows then three. The core dimensions are the same, internally is the difference. I think their radiator is around $400 plus shipping. When you order ask for Bruce. they are the best vendors for these cars, mostly deal in 409's and 348's
Only the 300hp 327s John. 250hp 327s with A/C did not get that radiator.
Verne
Correct, my mistake for not being clearer, thanks
John
1954 Belair Sport Coupe 1960 2 door Impala Hardtop 348/340HP 4spd 1962 2 door Impala Hardtop 409/409 4spd 1962 2 Door Biscayne Sedan 327/250 Auto 1977 Monza Mirage 305 4 Speed 1988 Celebrity Wagon 2018 GMC Sierra 2500 HD Diesel
Just to be clear, The 4 row "409" radiator that Show Cars sells does have a thicker core than OEM. The edges of the tank straps have to be trimmed away where they fold around the original core. Photo is of an original. Verne
yesterday, i installed the new 409 radiator from show cars...but when i went to connect the "gm" stamped upper radiator hose today, i learned that the radiator inlet is three inches further outboard than my original 327 radiator...the lower outlet and hose are perfect...the upper hose is too short (the offset is no longer correct because of the inlet location...
i'm hoping there is a different, molded upper hose available as a fix for the problem?..
The difference is slight. The 409 is a little longer than the 327 so the outlet on the manifold is in a different place. You could "probably" make the 409 hose work.
The parts book lists the same radiator for 1963 with heavy duty radiator, high performannce 327 engine, air conditioning. 409 engine, and....Power Glide transmission.
The only difference being the '63 radiator with a Powerglide had the trans cooler lines in the bottom, where the standard trans radiator didn't have those lines (or fittings). Two different part numbers.
then in a 409, are both the radiator filler neck and the thermostat housing on the engine aligned to the centerline of the car?.. are they aligned to each other?..
![[Linked Image from vccachat.org]](https://vccachat.org/ubbthreads.php/ubb/download/Number/11315/filename/strap edge front.sm.jpg)
