If you need to replace these components or every other part of the engine assembly, consider ordering a "turn-key" engine. Some people confuse short block and long block engines with small block and big block engines or refer to them interchangeably. There are significant differences between these terms, starting with the classification of small block or big block engines is a description of engine size.
Short block or long block refers to the number of assembly parts included. A short block engine is usually cheaper than its long block counterpart. The price difference also depends on the make, model, and year of the car the engine is designed for. However, a short block engine requires purchasing additional components that come as standard equipment on the long block.
A short block also requires extra installation time because of all the parts that have to be fitted. When you factor in the additional components needed and labor costs, the long block usually becomes a better bargain. Warranties on long blocks are usually longer and more comprehensive than those on short block engines. Since warranties only cover the parts included in the original purchase, the additional components installed on a short block are not covered.
Warranties for either engine type do not cover issues arising from faulty fittings, so consider hiring a professional mechanic to do the engine installation. Any additional parts needed for a short block can be purchased with a separate warranty depending on the company you are buying from.
However, if you buy a short block engine, comprehend the parts warranty and any installation warranty a mechanic may offer to guarantee their work. Generally, a long block engine offers better and more reliable performance than a short block engine. Since long blocks come with more parts preinstalled, they are less likely to malfunction due to faults in the fitting process. Short Blocks are a non-running engine. They consist of an engine block , crankshaft and connecting rods.
A short block however does not consist of a cylinder head, liners, gaskets, rings a timed gear-train or any kind of ancillary parts including the fuel system. Advantages: Short blocks are great for customers who have a non-cracked cylinder head but an un-useable crankshaft. Usually when a crankshaft spins a bearing the entire engine seizes up also ruining the head.
When remanufacturing an engine it might be best just to have the cylinder head work done as well. A new ported head machined back to OEM spec can be a great way to add life to an existing engine. Another disadvantage of a short-block could also be the labor costs. A mechanic will ultimately have to reassemble the engine regardless if it is a short block or a long block which includes re-configuring the old cylinder head.
The labor costs to reassemble the engine will be more than a long block or complete engine without the added advantage of a new cylinder head.
If you find that any of the above parts need replacement, you may need to consider a different engine package entirely, which brings us to…. A typical turn-key engine package should include the following:.
Determining whether to buy a turn-key engine or a block engine comes down to the same sort of calculations as determining whether to buy a long or short block.
Calculate the price difference between a turn-key and a long block package, and add to the cost of the long block package all of the following factors: costs of additional engine parts carburetor, shafts, etc. Make sure to include this in your calculation. Hopefully by now you have a feel for what package best suits your needs. If not, you can always find a mechanic service locally or online who can tell you more.
As you begin to consider adding more to your engine package your wallet will begin to ache, so determining the most cost-effective route is crucial. The key is to determine what your vehicle really needs done, calculate your costs accordingly, and pick the package that, for you, will have the minimum amount of unnecessary replacements and will also require the minimum amount of additional replacements.
Of course, we here at SWEngines are all about great deals. We hope this article has been a help to you and we also would like to help you in finding the engine you need. Head over to www.
Buying an engine can be complicated. Next Post Previous Post. Short Block The short block is the meat and potatoes of engine packages. YourMechanic Auto Repair.
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