![]() |
|
![]() |
#1 |
Registered User
Join Date: Oct 2007
Location: Palm Bay Florida
Posts: 47
|
radiator question
I put a 283 in my 65 in place of the 230 and the radiator even after being recored witha 3 row core just does not seem to be cutting here in Florida. When at a stop light or on the highway going over 65 mph the temp starts to creep up to around 200 then I get nervous and either slow down to 55 or pull over. If I keep it around 55 to 60 never goes over 170 degrees. I am running 185 degree thermostat 2000 cfm electric fan no a/c manual trans. What is a good aluminum rad and what size will fit our trucks.
Thanks Dennis |
![]() |
![]() |
![]() |
#2 |
283 Drama Queen
![]() Join Date: Dec 2004
Location: Surf City, CA
Posts: 2,435
|
Re: radiator question
Do you have a fan shroud?
Mac. ![]()
__________________
For about 12 years of my adult life I had a severe speech impediment. My ex-wife never let me get a word in edgewise. |
![]() |
![]() |
![]() |
#3 |
Registered User
![]() Join Date: Sep 2006
Location: San Francisco
Posts: 4,780
|
Re: radiator question
The Electric fan is probably not enough, but on the freeway it really should not matter much. You might want to try a aluminum radiator. http://cgi.ebay.com/ebaymotors/3-Row...8016QQtcZphoto Or if you want to see others. http://stores.ebay.com/CLASSIC-RADIA...QQftidZ2QQtZkm
__________________
"A man and his truck, what a beautiful thing" 65 Short Fleetside BBC 65 Long Fleetside 283 3 on the tree for now. my build thread http://www.67-72chevytrucks.com/vboa...d.php?t=259536 |
![]() |
![]() |
![]() |
#4 |
Senior Member
![]() Join Date: Oct 2007
Location: Marietta, GA
Posts: 797
|
Re: radiator question
Modine makes a 3-row radiator for 64-66 trucks with V8 that cools my 350 just fine. I think I paid about $240 at a local radiator shop for a brand new one. The V8 radiator is wider, and sits on top of the frame rails, as opposed to the I6 radiator that drops down between the rails. All you need in order to install the V8 radiator is to find a V8 upper mount bracket. Your existing lower brackets can simply be moved to accomodate the new location.
Last edited by MikeN; 01-09-2009 at 02:42 PM. |
![]() |
![]() |
![]() |
#5 |
Senior Member
![]() Join Date: Oct 2007
Location: Marietta, GA
Posts: 797
|
Re: radiator question
Photo of V8 radiator upper mounting bracket...
|
![]() |
![]() |
![]() |
#6 | |
Registered User
Join Date: Dec 2005
Location: Lake Oswego, OR
Posts: 318
|
Re: radiator question
Quote:
The v8 OEM tanks are wider than the 230L6 tanks, by about 3/4 inch. I thnk the OEM rads are 3-row to v8/big 6 and 2-row for 230L6. (My understanding is the 292L6 and V8 used same rad, only 230L6 had the small one.) When I did the swap I found a donor truck and snagged both upper and lower mounts, as well as the sheetmetal shrouds that do alongside the rad. The frame was already drilled, punched really. I used stainless carriage bolts to mount the lower brackets, since existing punched holes were square. I found that getting the correct rubber pads was troublesome. All the "regular" vendors seemed to have only the smaller pads for 230L6 style. They will stretch out and work, but are not correct. I ended up finding the right one from that guy that sells mostly the fancy "billet" dash inserts, Boese Engineering, or something like that. And oddly enough they didn't show on his web page, he happened to have them on Ebay right when I happened to need some. The pic here is one of the ones that I was sending to "the vendors" support folks after getting my first (wrong) set of pads. That is an OEM lower bracket from a 66 C20. You can see the pad is too small. The 230L6 tank fits that pad just right. You can see from the pic about how much wider the OEM V8/big6 (292) tank is. |
|
![]() |
![]() |
![]() |
#7 |
Registered User
Join Date: Oct 2008
Location: Cheyenne, Wyoming
Posts: 9
|
Re: radiator question
I put the V-8 Radiator in place of the in-line 6 unit and found many differences, yes you can move the old mounts but the v-8 radiator I got out of the junk yard was much wider and would not fit in the old mounts, took another trip to the junk yard to get the V-8 lower mounts also.
|
![]() |
![]() |
![]() |
#8 |
Resistance is Futile
Join Date: Dec 2006
Location: Mesa,Arizona
Posts: 3,520
|
Re: radiator question
I dont think 200* is that hot. I wouldnt worry about it too much. Where is your T-stat plumbed? Is your truck running lean? I ve seen mine get up to 220* right when the T-stat opens then drops off quicklyto stay around 190*. It generally runs around that mark in 110* Phoenix heat.
__________________
64 CHEVY PICK-UP > http://67-72chevytrucks.com/vboard/s...otrash+re-hash 64 CARRYALL >http://67-72chevytrucks.com/vboard/s...=1964+suburban 66 LB >http://67-72chevytrucks.com/vboard/s...d.php?t=427852 STRENGTH/DETERMINATION/MERCILESS/FOREVER .......posted via stationary device |
![]() |
![]() |
![]() |
#9 |
Registered User
Join Date: Jan 2008
Location: Satsop, WA
Posts: 606
|
Re: radiator question
As protrash said 200* is not a worry. You should have a fan shroud and I prefer a 5-blade clutch fan. Also you can use a 160* thermostat and a 6" water pump pulley.
__________________
1963' Chev Custom Cab 502, 67' 435hp 3X2 intake, 9" 4:30 Posi 1961 Impala SS 348/350 4-speed 3:70 Posi 1961 Bel-Air Bubble Top 283 Turboglide soon to have a 348 3X2 4-speed 1950 17' Fairliner twin cockpit barrel stern 312 Y block 1X1 intake Borg Warner 1:1 gear 1957 Fleetform 14' twin cockpit barrel stern 1969 BP-125 Merc 1949 Transitier 3-wheel forklift Crosley 4-Banger 98' FXD 2002 2500HD |
![]() |
![]() |
![]() |
#10 |
Senior Member
![]() Join Date: Oct 2007
Location: Marietta, GA
Posts: 797
|
Re: radiator question
Ditto on the clutch fan. I have a 69 Chevelle, so I pulled the factory clutch and fan blade from it to test-fit into my truck. It fit great, so I left it in there and bought a new clutch & fan for the Chevelle. I think the Chevelle set up is a 7-blade though.
Last edited by MikeN; 01-12-2009 at 11:28 AM. |
![]() |
![]() |
![]() |
#11 |
Registered User
Join Date: Dec 2007
Location: Palmer, Alaska
Posts: 13,821
|
Re: radiator question
good info...
anyone know of a source to get the upper steel mount for the v8 radiator, other than bone-yards, or maybe I'm better off just fabing one?
__________________
![]() ![]() |
![]() |
![]() |
![]() |
#12 | |
Senior Member
![]() Join Date: Oct 2007
Location: Marietta, GA
Posts: 797
|
Re: radiator question
Quote:
Regarding the lower mounts, it's possible my truck was modified by a previous owner, maybe that's why my lower mounts worked OK. |
|
![]() |
![]() |
![]() |
#13 |
283 Drama Queen
![]() Join Date: Dec 2004
Location: Surf City, CA
Posts: 2,435
|
Re: radiator question
200 degrees setting in the drive-thru lane waiting on your burger isn’t a big deal - moving in traffic or out on the highway - it is.
![]()
__________________
For about 12 years of my adult life I had a severe speech impediment. My ex-wife never let me get a word in edgewise. |
![]() |
![]() |
![]() |
#14 | ||
Registered User
Join Date: Dec 2005
Location: Lake Oswego, OR
Posts: 318
|
Re: radiator question
Quote:
My engine runs in the 195 to 205 range pretty consistently. Getting to 210 or 215 sometimes, not a big deal. If I get to 220 then I'm concerned. Note that 220 is not yet dangerously hot. But it's not normal for my rig, therefore a concern. I have two temp senders and two gauges. One is the OEM sender and original 64 C10 gauge that just has marks, no temps. The other is aftermarket with degree markings. WHen the aftermarket gauge is reading 200 the OEM gauge needle is still to left of center. From that one might conclude that GM figured 200 is well within acceptable operating range (at least for the 230L6 that was in there from the factory). Here is a source that says "ideal" running temp is 210 to 215 degrees. Link to article http://www.vincihiperformance.com/LS...amshaft%20Life! And the relevant paragraph: Quote:
|
||
![]() |
![]() |
![]() |
#15 |
283 Drama Queen
![]() Join Date: Dec 2004
Location: Surf City, CA
Posts: 2,435
|
Re: radiator question
Old metal moves. Having to replace head gaskets and resurfacing heads just isn't worth it.
Mac.
__________________
For about 12 years of my adult life I had a severe speech impediment. My ex-wife never let me get a word in edgewise. |
![]() |
![]() |
![]() |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|