Allen L. Jones says:
>
> I'm also using the 7lb cap with an original radiator recored with a staggered
>tube/louvered fin core, a water pump from Patrick's, and a 160F thermo. The
>freshly rebuilt 261 runs at about 170F.
>
> What's pretty hot? When I broke in the cam on the 261, it probably burned a
>little hot at first (less than 190F), but has settled down to the 170F. Once
>the engine is broke in, I'll probably switch to the 185F thermo. Good luck!
>
> gerryrd@verendrye.com writes:
>
> << I finally got my 57 235 in my 41 3/4T running last night.Seemed to run
> pretty hot. I've got a 180 thermostat, using 41 3/4t radiator (just
> back from radiator shop) , using Jack Carter's shortened shaft water
> pump.
>
> Question is: Original 216 installed used a non-pressure radiator cap,
> should 235 be using a pressurized cap with ?? rating?? Is thermostat
> too hot?? any opinions??
>
> Would appreciate any advice!!
> TIA
> Gerry
> 41 3/4T >>
>
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
Two words of advice here:
Fan shroud.
Two more:
Get one.
Two more:
Use it.
I've got the 1 1/2 ton radiator in my '57 its about 2 inches thick and 3 or
so wider than the stock. I had a sheet metal place help me fabricate an
aluminum shroud that fit the wider radiator. When I put it on, the trucks
temps dropped 20 degrees when idling in traffic.
Also swap out the original exploding 4 blade fan for a newer 6 blade
model.
--
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Miq Millman miq@teleport.com
Tualatin, OR
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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