[QUOTE=kovert]the car will be a street driven car so i dont think filling the block will be smart at all for cooling..
I've seen cars run filled blocks on the street, but they were filled only to the bottom of the freeze plugs and had killer cooling systems for both coolant and oil.
my goals ide like to make around 700 to 800 rwhp ..
There are lots of ways to do that. Now, how are you going to put all of it to the ground?
im kind of on a budget which is no good for building high hp engines but the aftermarket blocks that i have found seem to be 1500+ dollars which i can pick up a factory 4 bolt from a friend for 300 thats a big diffarence in pricing if you guys know of a place to get cheaper aftermarket blocks please let me know i would love to make 1000hp with a aftermarket block but 1500 is not gonna happen for me after machining decking etc those blocks are even more...
If I could offer some advice, I'd say go with the $300 block and make 500 hp with it. It can take that without trouble. Get the car dialed in so it can use every one of those 500 horses, and you can learn to drive it with that level of power. Then, look into building another engine with the aftermarket block.
Why build a 750 RWHP car that can only put 350 horses to the ground? Dialing in your suspension and getting traction is harder than making horsepower with a small-block Chevy. Get the hard part figured out first, and then turn up the wick on the easy part.
~SP~
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