whats the difference between the long and short block engines? is one better? will a long block 147 stroker fit well in my mav?
I am assuming you meant 347 and yes it will fit. A 347 is a 302 with a longer stroke(rotating assembly). As far as the difference between a short block and long block. Long blocks vary, depending on who is doing it. But a "short" block is: just the block, crank, connecting rods, pistons, cam....so on and so on. Basically everything "below" the heads is a short block. A long block is everything that a short block has, plus the heads. Hope this helps.
Short block vs. Long block... If you are looking at those terms in sales ads for engines, a short block is the engine completely built without the cylinder heads or intake manifold and carb. A long block typically has the cylinder heads but sometimes has the intake manifold as well. These terms have nothing to do with the stroke of the crankshaft or the displacement, they only describe the build stage of the engine. Seth
oooh ok so then i do want the long block if it has the carb and intakes and such..ok they didnt make that clear to me. thanx guys..oh yeah...a 347 is what i mean..i think i would like that better than a 147 lawn mower engine..lol
The long block will not come with the carb, intake, distributor, wires, plugs etc. As littleredtoy said, some may come with the intake also, but only if stated. A typical long block is only the block all assembled, and heads. You need to add your own intake, carb, distributor, etc. Here is a picture of what you typically get on a long block. I don't think most come with the pan or flexplate as shown in this pic, but you get the idea of the long block now. Get all the detail from whomever you are buying it from to see what is included, and what you need to buy separatly. Hope this helps. -Corbin
If you are buying the motor for a daily driver, I would suggest looking a the 331 strokers, they are (In my opinion) a much better option for a daily driver.
how much horsepower? Well, it all depends on what you put in it. It's all about matching everything up and having a combonation that works well together: heads, cam, intake, carb, etc. etc. I looked at it like this, build your bottom end to handle what the top gives it. If you have a killer set of heads and they do not work well with your cam, intake, carb etc. etc. then you will not get max power out of your combo. But if you built a 331 and matched it with a good "street friendly" cam, heads, intake etc. etc. 300+ horsepower or even more can be achieved and still be very streetable.
LZ- that depends on many different factors. Call around to some of the places that sell crate engines, long and short blocks and ask them. They are going to ask you what you are planning on putting it in and probably ??'s like the tranny type, rear end ratio, induction- fuel injected or carb and similar ?'s. Any HP or torque ratings that they give you are based on their build up of a short block with certain cylinder heads and a specific induction system and probably a given exhaust system. If you do not have a good knowledge base of how these pieces work together or someone you can rely on for assistance, I would recommend going with a built long block and stick to the basic single carb and intake. Keep it as simple as possible. Any short block that you buy will need cylinder heads. They have to match the pistons in your block as well as meet the clearance specs of your pistons and the cam. Something can go awry quickly if you don't know what you are doing trying to make lots of power. Your power is going to come from higher compression ratios and modified/aftermarket cylinder heads. The more you want, the less the margin for error. Good Luck- Seth
ok thanx wow i dont know what i would do without you guys....probably call someone. lol but still thanx. i cant wait to show you my finished mave. i will have one of the nicest 4 doors around! i owe it to ya. later!
