Going bigger than that to the 240° - range will mean you'll need to make other changes to your combo making it a little less street friendly and skewing the power curve to higher RPM. It looks to me like it would be well suited to your engine combo and make great power. In any case, as mentioned, I would use the cam you already have and see how you like it. He says the stall is too low for this cam but he prefers it to running more converter, but his car runs 11-teens full-weight with a Goodmark steel cowl hood, shifting at 7000 RPM. Just driving by itself doesnt get the engine hot enough to ping. When it pings on either fuel, it is while towing in hills with fairly high ambient temps. This engine will also ping a little with 93 octane gasoline. I started out building an old-school style low-buck small block Chevy in the school Auto shop (I teach high school Mechanics). It has the tamest cam I could get, because I wanted good torque. package, Super Vic, 830 annular 3800 stall and 4.56 gears in a '72 Camaro RS. My 454 has a roller cam and rockers, so it breathes pretty good. A buddy of mine has the Crane #118521 244°/252° 112° LSA street roller in his 11.5:1 383 with AFR 210 heads with the Comp.
And at that point if you stay roller you should be using a solid street roller.
A 240° 0.050" cam is fairly big in a 383 and will require at least a 3500 stall. 350 IRON HEADS All of the full-size cars came with iron heads. With an RPM intake and 750 vacuum secondary Holley like a 3310 the above combo should make for a stout street engine. All LT1 heads used small combustion chambers to get the higher compression ratios with flat top pistons the 350s had a 10.5 to 1ratio and the 265s had a 9.8 to 1 ratio. Part : BP38318SP Description HP & Torque: 436 HP / 443 FT LBSCompression Ratio: 10.0:1Hypereutectic PistonsCast Steel Crank Block: 4 Bolt main4.00' borePassenger side dipstick Align honed main bearing bore Cylinders honed on computer controlled machine to within. That cam you already have looks great for what you are proposing in your spec sheet, to be honest. The point here is to not get carried away with sticking too big a camshaft into a 383. As to a 383 cam, while you can run a bit more duration over a similar 350, it is not the same as camming a 400 which can really handle a lot of camshaft relative to the smaller engines, because it also has a huge bore (4.125"-4.185" depending on over-bore) and that also makes a big difference in cam specs.
0 kommentar(er)
