Technical Tips > Radiators - Cooling

454 Running Temp

(1/3) > >>

69CVET:
Hi Guys,

Had a few Small Blocks but 1st time with the 4 Sp Big Block - definitely runs a tad higher then my previous cars. ( not boiling over though )
Its very standard under the hood ( no aluminium radiator or extra fans installed ) ...

What would be a fair running temp ?
Thermostat in or out ?
Electric Fans to Conventional ?
Radiator Flushing ?

Happy for any feedback guys .. 

bfit:
What tempature are you running.
In this cold weather, it should run cold for the first 20k

First check to see if the air dam is fitted  behind the front valance panel .
Check the fan viscous coupling.
 

gtc:
Here are some temp readings that I took on my 454, using non-contact temperature gun:

3pm, 26 June (so towards mid winter). Car hot after a 1 hour run, and idling in garage ...

Exhaust headers 510F
Top radiator hose 175F
Bottom hose hose 165F
Radiator top tank 165F
Engine block - various locations 164F

Temp gauge on dash halfway between 100F and 210F and steady, i.e. approx 155F.

Original GM system, except 7 blade fan. All original cowlings in place.

Thermostat has bypass hole through it.

bfit:
Do you know what regulator is fitted ( thermostat)
Is the by pass in place

Around 80 deg s C is roughly right.
 my BB ran on the maximum until I fitted a air dam , that made a major difference .

gtc:

--- Quote from: Bfit on July 24, 2017, 09:23:59 PM ---Do you know what regulator is fitted ( thermostat)
Is the by pass in place

--- End quote ---

Don't know about type of thermostat, but has a bypass hole in it (added to above post)

This engine has never even shown signs of overheating, even on the hottest Sydney February day on record, at midday stuck in a mid-town traffic jam.

Testament to the original GM cooling architecture.

Navigation

[0] Message Index

[#] Next page