This should give me good power without sounding too racy.
For rings, I used KB's matching moly ring set. On my engine, the compression ratio worked out to 10.1:1. These are much stronger than stock pistons and give a higher compression ratio. I used Keith Black KB-167 hypereutectic pistons. Stock pistons aren't the right choice, even in a mild build.If you're putting after-market rods into a small block Mopar, I'd recommend Scat over Eagle. I should also mention they're only a little more than Eagle rods but made out of better steel. They're probably not necessary in this application, but if a rod lets go it will ruin your whole day, as well as your engine. I decided to go with Scat I-beam rods.The stock Mopar 318 crank is actually a pretty good piece and is good for at least 6500 rpm, far higher than I'll be spinning mine. Mine required grinding and cleaned up at. Since this is a street engine, I decided to use the stock cast crankshaft instead of a custom forging.For a street engine, that's all you need. Machine work included boring and honing with torque plates (very important), line honing the main bearing saddles, and decking the block. It's easily repaired, but adds about $100 to the cost of the re-build. Another problem with the later blocks is that they're prone to cracking between the center head bolt and the water jacket. 030" which is the maximum you should go on these thin wall blocks. These have the advantage of having factory provisions for a hydraulic roller cam, but the disadvantage of thinner cylinder walls than earlier castings. I recently had a 318 rebuilt to replace the 273 in my 66 Barracuda. Blocks can be a little harder to find than 360 cores, depending on where you live, but it's worth the effort to track one down. Overview: Even though almost all Mopar 318s came from the factory in low performance two-barrel trim, the 318 can be built into a great street performance engine.
#GOOD STREET CAM 350 CHEVY 10.5 TO 1 HOW TO#
Please note there is another book available titled How to Hot Rod Small-Block Mopar Engines which I do not recommend, as much of the information is out-dated and a lot of the parts mentioned are no longer available. They aren't the same as Chevys and you won't get maximum performance if you just copy what works on a Chevy. It covers stock type rebuilds, so if you're looking for high performance info, it's best to consult with an engine builder who has experience with the Chrysler LA small blocks. How to Rebuild Small-Block Mopar Engines has all the information you need to know.
If you've never rebuilt a small block Mopar, you really need this book. This Book Tells You Everything You Need to Know
#GOOD STREET CAM 350 CHEVY 10.5 TO 1 PLUS#
I'm running 302 head castings with 1.88/1.60 valves and mild porting, KB hypereutectic pistons (10.5:1 compression with my heads), Comp Cams 268H cam, stainless steel roller rocker arms, Weiand Action Plus intake, Edelbrock carburetor, and SSI headers. Forty five extra cubic inches equals lots more torque and horsepower, and the 318 is a bolt-in replacement for the 273. When the engine in my 66 Barracuda needed to be rebuilt, I decided to replace the stock 273 with a modified 318.