Identifying a [url=http://www.zjautoparts.net/]EGR Valves[/url] can be a difficult task, and an L88 Corvette is no accept ion, the very first thing you have to look at, is the price of the car. In this day and age an L88 Corvette can easily run 100,000 dollars or more, and if you've located an Corvette for sale and the person selling the car is representing it as an L88, and the price is low "BEWARE" of a scam right up front, these are very rare and hard to find cars, and even a wrecked one can run 30,000 dollars or more. Now down to the brass tacks, the first thing that I would look at is the engine codes, such as the RPO code and casting numbers to make sure that the engine is an L88, there are however some tell tail signs, keep in mind that not every L88 had the 3X2 carburetor option installed on it, this was an add on known as the L71 tri-power option, now an L88 is a 427 CID engine, that normally came with a single Holley 850 double pumper carburetor, so just because you don't see a tri-power set-up on the car does not mean that it's not an L88 427 car. A true L88 Corvette is a rare find, so you can feel lucky if you happen to find one, also available was the L89 aluminum head option, that would shave 75 pounds of the front end weight of the car, if your lucky enough that the car that you plan to buy has a build sheet with it, you can know exactly what the car came with from the factory, but again this is a rare find in the classic car world. On the engine the RPO code is located on a machined pad in front of the passenger side head, the RPO will tell you what year the engine was built, what engine it is, and usually what transmission was attached to the engine, it will also reveal what manufacturing plant built the engine, the casting number will also tell you what year the engine is, how many main caps it has and the horsepower of the engine, with the pro code you need to look closely because people have been known to machine and re-stamp these numbers, if the RPO code does not match the casting number in any way, be very leery of the deal that your about to make, ask a lot of questions. I've been in the Motorcycle [url=http://www.zjautoparts.net/]Carburetor Parts[/url] business for about 20 or 25 years, I have worked in all facets of the industry, from parts to restoration, all different makes and models, I just want to keep people interested in the old cars because it's where my heart is.