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Username Post: Overheating        (Topic#340552)
Jasonda 
Forum Newbie
Posts: 6

Reg: 07-07-13
11-12-16 06:10 PM - Post#2661228    

Please forgive me I had trouble getting this to add. Also this has probably been discussed before. I have a 350 that was rebuilt and dyno tested at 425 hp. RebuilDer paperwork lost do to a death. Engine runs 230-240. New wp, 160 tstat with bypass holes. Upper hose Builds pressure and pops off. Head gaskets and heads look fine.
I see a water port in the middle of the head with no port in the block in the same place. Please help.



 
junkman104 
Frequent Contributor
Posts: 1525
junkman104
Age: 61
Loc: Murphy N.C.
Reg: 01-25-14
11-13-16 05:05 AM - Post#2661300    
    In response to Jasonda

My first thought is the water pump, V-belt and serpentine are reverse rotation from each other.



 
Jasonda 
Forum Newbie
Posts: 6

Reg: 07-07-13
11-13-16 07:59 AM - Post#2661312    
    In response to junkman104

Already checked that. It is a v-belt. It does have a chrome pulley, would that be a concern?



 
junkman104 
Frequent Contributor
Posts: 1525
junkman104
Age: 61
Loc: Murphy N.C.
Reg: 01-25-14
11-14-16 06:03 PM - Post#2661601    
    In response to Jasonda

But is it the right water pump?



 
GMMark 
Poster
Posts: 6

Reg: 11-23-18
11-24-18 02:11 PM - Post#2752268    
    In response to Jasonda

Post pics of the heads and engine



 
Texasray 
"4th Year" Gold Supporting Member
Posts: 112
Texasray
Loc: Texas
Reg: 11-01-16
11-15-19 07:48 PM - Post#2780253    
    In response to GMMark

Do you ever feel flow thru the lower hose? Does the bottom of the radiator near the outlet to the pump get hot? If no to those questions then you have no flow. Probably first check (as Noted earlier) do you have a serpentine reverse rotation W/P on the engine. You said you were using v belts so...

As for the hole in the head, is there one in the head gasket. And yes, pictures would help.

Sam



 
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