im just curious i have a 455 engine in my 1956 olds and it runs hot which i understand big blocks do i do have it under control and now its at 197 course its fall...im not looking for info how to cool her down.....i was just wondering what other engines i could put into my car that are known to run cool and would bolt into the 1972 olds motor mounts that i have welded into my car...thanks
I have a pal that had a 455 in his '58 Chevy pickup and it always ran hot, he installed a 454 Chevy and it runs cool as a cucumber. He is using the same radiator & mechanical 17" steel fan. HRP
I seldom had a 455 Olds that ran hot. All were in stock applications. I have had maybe 200 of them in my lifetime. Used car dealer since 1977.
Ran a 455 Olds in my '48 Plym for 8 yrs w/o a problem. What temp thermostat & how big a radiator you got?
There is no particular issue with the design of the cooling circuit on a 455 Olds. Big blocks run hot is a bench racing wives tale. Figure out why your engine is running hot and fix it. -Abone.
What flamedabone said. Hotrodladycruiser has had a 455 in the Big Olds since JustSteve built it 25? years ago. Many thousands of miles.
My 455 runs that cold in my 1955 olds that I have upped the thermostat to 190 and I still have to block off half the radiator to get it up to 1/4 on the temp gauge. I don't think it's the engine that is is the issue. I agree, look at your cooling system. I'm still using the 7lb radiator, so I don't even get the benefit of a 13-14lb radiator which helps with increasing the boiling temp. the motor has this water pump on it, maybe that might help. http://www.ebay.com/itm/191429537078?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT
1. No such thing as a "big block" Olds 455 Same block, larger displacement. 2. I run a 455 with 11:1 compression, aluminum heads, and runs cool. 3. Dr. Olds says you got a temperature issue not an engine issue.
Yo Sporty, I was just referring to the late 60s early 70s stuff. Just like their Poncho brethren, be it a 350, 400 or 455, no big and small blocks. Chevy always had to make it a bit more difficult...in a good way.
That's not running hot....might check your vacuum source, timing. Gauge might be off just a few degrees.
I have two 455's and one 425 all run about the same temp 190 200 depends on the ambient temperature. 200 degrees is not running hot in my opinion. Is your car puking coolant or pinging? As has been stated easier and more economical to repair the issue than throw out a good running engine. Joe Sent from my SM-G900V using The H.A.M.B. mobile app
The Jalopy Journal
