The higher the cruise vacuum, I generally got better mileage. I have noticed my cruise vacuum ( I run an in dash vacuum gauge) changes with my cam changes. There are some generalities that apply to all. Seat of the pants sans dino or track testing is what most of us are left with. Everything comes into play from displacement, compression, head flow characteristics, weight and gearing and on and on it goes.Ĭam events using calculators and simulators like the one in the link below become easier to understand but no one is as familiar with anyone elses particular combo as that driver. Some people claim much improved fuel mileage after advancing their cam, others the opposite. Cam grinders have spent countless hours of research trying to get it just rightĮvery engine combination has different characteristics and cam events are the most difficult to get exactly right. If the exhaust valve closes too soon, the scavenging effect will be reduced, trapping exhaust gasses in the combustion chamber.Īs you can see, valve overlap is a touchy time frame in the piston’s travel. This will cause an excessive amount of fuel/air mixture to escape into the exhaust port because the intake valve is still partially open. If the exhaust valve closes too late in the cycle, the combustion chamber will be "over-scavenged". The point where the exhaust valve goes fully shut is also important. When exhaust gasses are forced into the intake manifold, vacuum is adversely affected and the intake runners will soot up.
If the intake valve opens too early in the cycle, vacuum will be reduced and exhaust gasses will be forced into the intake manifold. If the intake valve opens too late in the cycle, the initial amount of fuel/air mixture draw into the combustion chamber is reduced and spent gasses will not be effectively flushed from the chamber. If you don’t find it, just call one of our experienced street rod, muscle car or race techs who are here to help you find the small block 350 for sale you’ve been hunting for.The point in the cycle where the intake valve opens is very important. We have the small block 350 you’ve been looking for. Speedway Motors builds them, or you can buy top brands from Chevrolet Performance, Edelbrock, Blueprint Engines, World Products, on and on. Your search for a small block 350 for sale ends here. That’s sure to plant you in your seat.Įxtra! Extra! Read all about it! Small block 350 for sale! Small block 350 for sale! How about Speedway’s Crate Buster part #12135500? This fire-breather guzzles alcohol and makes 545 whopping horsepower and 517 ft/lb of torque. You want a solid cam, racing internals, and high compression. Your search for a 350 small block for sale requires big horsepower numbers. How does $2500 bucks for a brand new Chevrolet Performance short block sound? Or how about one that’s complete with carb and air cleaner for about $4600 bucks? Brand new! When we say cheap, we don’t mean cheap in quality. We know that some of you have been hunting for a small block chevy engine for cheap. The 350 Chevy small block is without a doubt, still the king.Įnough of the small talk, let’s get down to business. Street rods, drag cars, boats, industrial, military, street racers, muscle cars.
The fact that this was even possible is a testament to how inherently universal a Chevy 350 small block really is. For a hot rodder, there is nothing better than taking out the 4 cylinder and putting in that sweet, Chevy V-8 into a Model A Ford or a T Bucket. What truly makes the 350 small block attractive though, was its compact packaging-this engine has found it's way nestled in between the fenders of many engine- swapped hot rods. Bill Smith raced small block Chevy powered modifieds before many of us were even born. There might be others that know a little, but we’ve been racing them since they rolled off the assembly line. After all, they are the most popular hot rod engine ever produced! We speak small block Chevy at Speedway Motors. We know why you are looking for a 350 small block for sale. If you are looking for a 350 Chevy engine for sale cheap, you have to look in the right place, and the right place is Speedway Motors.