Posted By: Anonymous
440 engine temp question - 03/26/09 12:23 AM
Great site!! Learned many things , many years of experienced individuals. Thanks
I have a 66 satellite with a 1977 440 block, 727,running 3:9.1 742 suregrip rear member. My question is what is the correct operating temp for this application? I know the factory was 180°f t-stat. The engine builder installed a 160°f. The block is .30 over, steel crank , Kieth black pistons, chrome molly rings. 284-284/484-484 MP performance cam and lifters. Stock valve train!346 heads correct springs/ clearances etc.Milodon water pump, correct MP clutch fan assembly and factory shroud,edelbrock performer dual plan intake and 750 carb.1-7/8 super comp headers,2.5 exhaust. Block was flushed etc, the car had a 3 core 26" rad. Thought the rad was good but last year which was the first year out after the restoration the car ran around 190 to max 210 in traffic hot Ohio day. I decided after reading many treads to remove the rad and sent to Glen Ray for a rebuild(highly recommended). He estimated the rad was 25% plugged.Old age syndrome. Now car operates by the t-stat. I am also running 20/50 brad penn oil.I know there is a calculation concerning the efficiency of the fuel burn at ?? temps. My question is should I wait for the hot summer months to arrive before I change to a 180°f t-stat or leave the 160°f in it? Runs great.Any input would be greatly appreciated!!
I have a 66 satellite with a 1977 440 block, 727,running 3:9.1 742 suregrip rear member. My question is what is the correct operating temp for this application? I know the factory was 180°f t-stat. The engine builder installed a 160°f. The block is .30 over, steel crank , Kieth black pistons, chrome molly rings. 284-284/484-484 MP performance cam and lifters. Stock valve train!346 heads correct springs/ clearances etc.Milodon water pump, correct MP clutch fan assembly and factory shroud,edelbrock performer dual plan intake and 750 carb.1-7/8 super comp headers,2.5 exhaust. Block was flushed etc, the car had a 3 core 26" rad. Thought the rad was good but last year which was the first year out after the restoration the car ran around 190 to max 210 in traffic hot Ohio day. I decided after reading many treads to remove the rad and sent to Glen Ray for a rebuild(highly recommended). He estimated the rad was 25% plugged.Old age syndrome. Now car operates by the t-stat. I am also running 20/50 brad penn oil.I know there is a calculation concerning the efficiency of the fuel burn at ?? temps. My question is should I wait for the hot summer months to arrive before I change to a 180°f t-stat or leave the 160°f in it? Runs great.Any input would be greatly appreciated!!
and a high flow(as said) and suspending it in a pot to check it 1st.