I've been having overheating issues with my junk for several months.
My junk was running around 195*-210* at low RPMs on the street.
When I would go up over a local hill, running at about 45-60mph (3-5k rpm) it would fly up to 250*.
History:
SBC350, Rochester 2 barrell, Rams Horns, 2" pipe into 1 flowmaster 40 series, SM465, D18 on 35s.
Swap was done 20 years ago, but never finished (truck sat for 20 years).
I put in EVERYTHING but the engine.
I've done a bunch of engine work, but nothing major to the block (new main seals & other gaskets).
I did have the heads cleaned up & valves re-seated.
While it was apart, I cleaned out the block, heads & intake build-up with a screwdriver.
I've flusheed it dozens of times.
New points, set timing/dwell, new hoses, & thermostat (180*).
H20 pump was replaced 2 years ago, but then it sat for a year during buildup (less than 200 miles on it).
Radiator out of a 60s vette (came with my project) was pressure tested last year.
Was overheating with the mechanical fan, so I swapped in a taurus fan as a pusher. That didn't work.
Moved the radiator forward, made fan a puller, that didn't work.
Swapped in a custom 4 core I got from Scout Dude... Still overheating.
This week I trimmed 1/2 of each inner fender well, thinking that it was an airflow problem.
Tested it after I did each of the cooling items listed above.
It brought it down a bit, but not enough.
Now it runs at 180*-190* at low RPMS, but goes up to 195* on hot days & 210*-230* on that hill.
This week I'm going to pull the hood off & see if its still an airflow problem.
The 4 core is also kinda narrow & tall, I'm planning on puting a shroud between the radiator & my grill to help channel/funnel air toward the radiator.
I'd like to swap in a new H20 pump as well (currently unemployed=no $$$ right now).
Anyone else have any ideas?
My junk was running around 195*-210* at low RPMs on the street.
When I would go up over a local hill, running at about 45-60mph (3-5k rpm) it would fly up to 250*.
History:
SBC350, Rochester 2 barrell, Rams Horns, 2" pipe into 1 flowmaster 40 series, SM465, D18 on 35s.
Swap was done 20 years ago, but never finished (truck sat for 20 years).
I put in EVERYTHING but the engine.
I've done a bunch of engine work, but nothing major to the block (new main seals & other gaskets).
I did have the heads cleaned up & valves re-seated.
While it was apart, I cleaned out the block, heads & intake build-up with a screwdriver.
I've flusheed it dozens of times.
New points, set timing/dwell, new hoses, & thermostat (180*).
H20 pump was replaced 2 years ago, but then it sat for a year during buildup (less than 200 miles on it).
Radiator out of a 60s vette (came with my project) was pressure tested last year.
Was overheating with the mechanical fan, so I swapped in a taurus fan as a pusher. That didn't work.
Moved the radiator forward, made fan a puller, that didn't work.
Swapped in a custom 4 core I got from Scout Dude... Still overheating.
This week I trimmed 1/2 of each inner fender well, thinking that it was an airflow problem.
Tested it after I did each of the cooling items listed above.
It brought it down a bit, but not enough.
Now it runs at 180*-190* at low RPMS, but goes up to 195* on hot days & 210*-230* on that hill.
This week I'm going to pull the hood off & see if its still an airflow problem.
The 4 core is also kinda narrow & tall, I'm planning on puting a shroud between the radiator & my grill to help channel/funnel air toward the radiator.
I'd like to swap in a new H20 pump as well (currently unemployed=no $$$ right now).
Anyone else have any ideas?