I just got word my 302 is already .40 over. Can I run on the street with .60 over without running hot or causing problems or should I invest in a new block. I will have alot of questions about putting this motor together as this would be the 1st.
i would just get another block that needs rebuild i see them for 50 bucks all the time ?? i wouldent put that amount money into a block that you might have problems with
going 60 over will thin the cylinder walls and could possibly have overheating issues.best to get another block so you can just go 30 over 40 at the most.
well the engine builder says it does have scatches but he has a few chevy 350's that are on the street with .060 over with no problems. My buddy car is running great an never gets above 180 but it don't have a thermastat in it. I will check with the machine shop about the .060 over.
Please do not go off what a Chevy 350 is doing at 60 over, they have enough meat between the walls to go that far out. I do know on a ford they will get really thin at 60, so I would do what others have said and get a better block.
I talked to my friend who owns a speed shop and is building my 347. Mine will be .040 over and he said that's the limit. He has a bunch of blocks and I asked should we start with another block and he said no that while .040 over is the limit it's very safe for ford blocks. He builds everything under the sun for both race and street and he said that Chevy's have more meat around the cylinders. Blocks are cheap, anything past .040 and look for another block. Wouldn't want to go through all that work just to start over again maybe at some point if something happens.
Okay, so the next question is why the 302 only come in $1500 4 bolt and not a new 2 bolt? Can I use the 5.0 block from an explorer and if so should I keep all the brakets & pulleys or used my stuff?
I have been doing some checking today. Ford Racing has a 351 2 bolt http://www.fordracingparts.com/parts/part_details.asp?PartKeyField=9190 for $1175 DSS has what they call a race prepped block 302 for $925. These blocks are already machined and bored .030 over. The salvage yard is talking about $250-$400. Machine shops are charging $400-$500 for machine work. What's the better option? I already have a T5 that I used with my 302.
The salvage yard engine costs a maximum of $900 with machining but you get a crank, rods and heads with it. The Ford block is a bare block for a minimum of $925 and then you have to buy all the other parts. Unless you are going to stroke the 351W then the used parts are a better deal.
Check out fordstrokers.com,they sell everything from blocks to motor's,they have a great deal for a 347 shortblock that comes ready to be assembled its only $1800
Looks like I have 2 options for a block. Next question for the hot rodders. Is 195cc heads a good size for 347 cu. I have my I set on Brodix KC 195's but I getting different options from different well known shops around town. BB&T stated they put Edel Vic. Jr's but they are like 210cc. Another stated AFR 185 are perfect. I'm looking for a strong street motor but would like to do some auto Xing also. That means I need some tq also but would like to be near the 500 hp mark. Fordstroker advised the stock block would hold 500hp and no higher than 6500 rpm's. I also got a DSS girdle kit to help.
