Hey out there has any one had good luck using block filler and then running it on the street,Im looking at a 50/50 street strip combo going to run a aluminum rad,electric fans and some other goodies but I would like to hear some feed back on it before I get started.If I do run it I need to find out how much people are running (how much in the block) and if it might cause a overheating condition,I live in Texas so it can get pretty warm down here in the summer.Thanks Bryan F.:bglasses:
I talked to a machine shop that built a 14.0:1 464" motor with hard blok within 1.5-2.0" of the deck surface. It runs cooler than it did without it. There was a thread here about a month or so ago that discussed this. If you go the extra step of putting coated rubber hose in certain areas to help the flow, it'll work better as it distributes the water better and keeps it away from the hot engine oil. Maybe someone else will remember the thread.
Water temp will not be the problem.. oil temp is much more of a concern. I would recommend you run an oil cooler, for a filled block on the street. JW
I can tell you from experience that a block that is poured too deep will still cool but the oil will not. The water in the lower portion of the engine is there for a reason, when it is removed the oil then takes on the task of cooling the lower end. My block was poured to within 1" of the deck surface ( I had asked for a half fill ) and would not keep the oil cool even with a good oil cooler. I bought a Howe radiator with the oil cooler plus an external cooler and oil temps would still rise beyond control. The builder of the engine knew this was going to be a street motor and had instructions to not fill this deep, but did so anyway. This was a girdled motor, decked, o-ringed, poured, oil mods and my checkbook didn't have space to build another block after this so my street car became race only. I will never accept work like this again and have no respect for the shop that did this. Select a machine shop that you are willing to drive to pick up your parts and inspect before you pay, I learned my lesson.
Hi Guys, I have success due to increased oil capacity. If you can run as deep a sump pan as possible with a remote large filter and -10AN lines (and possibly a 3qt. Accumulator or Accusump) you will have upwards of 14qts as I have. With that much oil and in the middle of our hottest Central IL August summers the oil can still run too cool for me and can take awhile to fully reach operating temp. A cooler has never been needed by my combo. Here's a pic of what it looks like... Hope this helps...
Thanks Jim,Kerry and Dennis for your input.Im really going to check this out before I put this hole plan into action.Thanks Bryan
block fill HI BRYON, I HAVE MY MOTOR FILLED 3" FROM THE TOP OF THE BLOCK. I HAVE NO TROUBLE KEEPING MY MOTOR COOL, ITS 14 TO 1 WITH IRON HEADS,I RUN AN ELC. WATER PUMP, 2 ROW ALM. RADIATOR AND I DRIVE IT ON THE STREET IN THE HEAT. IT RUNS AROUND 200, OR LESS. I DONT THINK YOU WILL HAVE ANY TROUBLE WITH OIL TEMP I HAVE AN 8QT STEFS OIL PAN AND I RUN AN OIL TEMP GAUGE, THE OIL TEMP NEVER GETS TO HIGH. IT STAYS WITH THE WATER TEMP UNLESS YOU RUN IT REAL HARD ! BUT THEN IT COMES RIGHT DOWN. JOHN MASSOUD (TORQUENSOVER)
3" from the top is what I would consider aprox. a half fill and I beleive that would work fine. I also had little trouble with driving arround town or cruise nights, my oil system was about 10 quarts. The trouble came when I actually tried to drive as a car not a toy, extended expressway driving is something that most bad street cars never do, for me that is not a street car. Extended periods of sustained speed is where the oil temps become a concern not cruising. I will not say that this can't be done, just ask yourself how you want to use your car. A street friendly compression ratio of below 10.5-1 will yeild more bottom end heat generally than the insane for street use 14to16-1 motors John and Kerry listed. You can lower the lower end heat by lightening the rotating assembly and running hideous compression and race gas, I was refering to a street friendly engine not just an engine that has run on the street. Both of these engines put out more power than mine naturally aspirated, but mine was built with a bottle in mind and was a lower efficiency motor without the bottle turned on. You need to maximise for your application and don't fill too full, I feel 3-4" from deck is safe for street use, less than 3" and you will have trouble with road trips. The accusump is an excellent idea on any engine and I plan to copy Kerry's system for my next car, I would also recomend a full length windage screen and a deeper pan or block girdle to give the front rods more room.
