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engine break in thermostat or no?

Started by Brightyellow69rtse, October 16, 2011, 02:33:10 PM

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Brightyellow69rtse

October 16, 2011, 02:33:10 PM
ok im finishing up the motor and should i run a 160, 180 or no t stat for the engine breakin? i got high flow versions of the 160 and 180. im using stealth heads too. i always ran a 160 high flow with my old iron heads on my 400. should i jump up to the 180 on the aluminum heads?

Chryco Psycho

#1
October 16, 2011, 06:16:18 PM
180*

tan top

#2
October 17, 2011, 03:40:12 AM
would test the thermostat also , before fitting !!  :Twocents:
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Roger 68 charger

#3
October 17, 2011, 05:02:37 AM
180   :cheers:
68 charger RT 505"
70 cuda
99 Durango

gtx6970

#4
October 17, 2011, 06:35:26 AM
On breakin, I leave them out. I don't want that spike in temp on a brand new engine. ( it's a personal thing )

Chryco Psycho

#5
October 17, 2011, 09:18:24 AM
spike in Temp ???
with the thermostat it will reach operating temp faster & the thermostat controls it from there

flyinlow

#6
October 18, 2011, 06:54:15 PM
180* I like Tantop's idea of testing it first.  Some guys drill a tiny hole in the flat part to help bleed the air out.  :Twocents:

TXcharger70

#7
October 18, 2011, 09:11:05 PM
I broke mine in with the stat and just used a water hose to hose down the radiator to keep it cool

A383Wing

#8
October 18, 2011, 09:29:38 PM
proper engine break in will be achieved faster with engine at operating temp....most rebuilders say do not leave the t-stat out...run a 180*

dodgedarren

#9
October 18, 2011, 11:24:02 PM


I heard an old dog trick is to drill a 1/4 inch hole in the flange. Not sure why but I don't argue with old dogs and did it on my 160 high flow.

gtx6970

#10
October 19, 2011, 06:58:11 AM
Like , I said - MY preference and never had an issue yet in 20 plus years of doing it this way
I have always left it out, Bring it up to  temp slowly. and let her run. once its' got maybe and hours worth of run time on it. I'll put the stat in.

Brightyellow69rtse

#11
October 22, 2011, 09:23:16 PM
heres what i went with   http://www.summitracing.com/parts/EMP-301/

unfortunatly my oil pump drive gear is too tight and the shaft wont even fit into it.thats totally screwing me over at the moment....... so i dunno what the hell to do about it  :flame:

BSB67

#12
October 23, 2011, 01:48:22 PM
Quote from: Brightyellow69rtse on October 22, 2011, 09:23:16 PM
heres what i went with   http://www.summitracing.com/parts/EMP-301/

unfortunatly my oil pump drive gear is too tight and the shaft wont even fit into it.thats totally screwing me over at the moment....... so i dunno what the hell to do about it  :flame:

Too tight where?  Oil pump?, bushing?, or the gear?

Did you burnish the bushing?

500" NA, Eddy head, pump gas, exhaust manifold with 2 1/2 exhaust with tailpipes
4150 lbs with driver, 3.23 gear, stock converter
11.68 @ 120.2 mph

Brightyellow69rtse

#13
October 23, 2011, 07:38:12 PM
the bushing is too tight. it was not burnished i believe it was just knocked in the block.
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