R_Boyd
07-05-2007, 06:22 AM
Hello everyone. I have decided to go ahead and rebuild the 350 that is in my 1992 4x4 1500 Silverado. As it sits it burns its fair share of oil and is due for a rebuild. I'm not sure whether to use the current block in there (high stress on it, was used to pull a 5th wheel, valve seals are worn, and the pistons rings are probably tired as well) and bore it .030" and make it a 355, or just buy a shortblock and get some vortec heads and after market cam. Now after doing some reading I think I have picked a combination that would work well for what I want. The specs on it are as follows;
1.94" intake, 1.50" exhaust, 76cc combustion chamber, 9.5:1 compression, Edelbrock performer manifold, and 1-5/8" headers. Cam is a Competition cam 265 DEH, with .442/.465", and duration at .050" lift: 211/221 degrees. This combination is said to make 388 ft-lb of torque at 3750 rpm, and 337 hp at 5250. This was running a 650cfm Holley carb.
I'm mostly interested in building a bit of a torquer as it is a 4x4, and I mostly play around in the mud/ trails without running it all that high in the rpm's. It also has to be friendly in daily circumstances, as it is my DD and I don't want too aggressive a cam.
Does this sound like a reasonable combination for what I want to do? I was thinking of running the stock TBI system, with stock injectors. Is this a good or bad idea, would I have to go with a larger size injector and have to switch to the marine intake manifold? I would be sending the chip in to probably PCM4less and getting it retuned as well.
What other options do you think would fit my application? I'm open to suggestions and would greatly appreciate some input as this is the first time I've ever done something like this, and I'm only 17 trying to learn. Thanks
1.94" intake, 1.50" exhaust, 76cc combustion chamber, 9.5:1 compression, Edelbrock performer manifold, and 1-5/8" headers. Cam is a Competition cam 265 DEH, with .442/.465", and duration at .050" lift: 211/221 degrees. This combination is said to make 388 ft-lb of torque at 3750 rpm, and 337 hp at 5250. This was running a 650cfm Holley carb.
I'm mostly interested in building a bit of a torquer as it is a 4x4, and I mostly play around in the mud/ trails without running it all that high in the rpm's. It also has to be friendly in daily circumstances, as it is my DD and I don't want too aggressive a cam.
Does this sound like a reasonable combination for what I want to do? I was thinking of running the stock TBI system, with stock injectors. Is this a good or bad idea, would I have to go with a larger size injector and have to switch to the marine intake manifold? I would be sending the chip in to probably PCM4less and getting it retuned as well.
What other options do you think would fit my application? I'm open to suggestions and would greatly appreciate some input as this is the first time I've ever done something like this, and I'm only 17 trying to learn. Thanks