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I always start with measuring the stroke. Some 76's came with the mighty 390, you may have gotten lucky. Then measure the compression to be sure you have an engine you can improve. Do a complete tuneup. Now that you know what you have and it is running really good, begin the improvement process. Edelbrock has a nice setup including camshaft, intake manifold, carburetor and heads. Some would recommend headers, (I don't). But I do like a true dual exhaust system with crossover pipe or X pipe and a set of Flowmasters. You can spend a lot of money and not really see much improvement. If you have a 360 you can during the next rebuild convert it to 390 or something bigger in the FE motor line like 410 or 428. Sky and budget are the only limits!
if it is a 4x4 it is a 360 unless someone swapped it out allong the line. The 360 is a great mill that is horribly underestimated. I would say keep the 2bbl and put a holley 2 bbl 500 cfm carb on it alltho it is only available with manual choke. Also i would say youd be better off with a cam from Crane. If u tear the engine apart id say put some 390 pistons in to raise the compression (8.4) to something more respectable lol. For headers you can get a pair of Dynomax for about 150$ and are pretty good. Also i have found recently if u get a earlier timing chain pre 73 it is not tuned for gas mileage but yeilds more horsepower i bought one from milodon i believe for 18 bucks. for its low price its really good.
I agree that the 360 is a OKAY engine. And if I had a good running 360 I'd leave it alone. But before I bought pistons to raise the compression I'd take the next step and convert it to 390. Any investment in a 360 like a new intake or camshaft or headders will payoff with the conversion. Your recommendation for a better carb is on the money. I hope we hear back from Randyb12.
Thanks for the info. I will be converting to a 390 crank and rods. Not sure what cam i am going to use. I am considering the edelbrock performer rpm cam and intake. I am trying to reconstruct the smog system without much luck at this poinnt. the vacum harnness was all cut up and missing most of the lines. Can anyone help with this?
Originally posted by William Some would recommend headers, (I don't).
Big mistake if you don't use headers. My stock 360 woke up with a set of headers hooked to the existing exhaust (true dual - no crossover). The headers was the only thing, and it woke up a STOCK 360...
Those headers are still on after upgrading to a 390, and then a 390 with 428SCJ exhaust valves, and a 292/292,.554"/.554" cam. I can't imagine running my existing engine with stock exhaust manifolds, it would be a nightmare.
Plus, you don't have to keep finding replacement manifolds everytime you crack another one.
I won't debate headers! The smog system is important to a clean and good running engine. I would recommend using the local library to find a Chiltons manual and re-establish the smog system. Later you can improve things from there. Also be sure to check state regulations for allowable modifications. I have found that hacked smog systems were usually the result of misguided individuals attempting to solve a poor running engine and the results are usually a worse running engine. I always try to keep things stock, as built, until I have a really good running and reliable engine. Then improve from there. Start with a tuneup, compression check, oil and filter and air and fuel filter changes. Post back!