remedialmofo said:I'm ramping up to build several ultimate truck engines. I'm needing a bit of guidance as I'm not very knowledgeable in the built engine department. The heads are being sent off and I will do the assembly after machining.
I have 4 90-94 Chevy 1/2 ton trucks. These currently serve as fleet vehicles for my small business. I recently had all of my 700r4 transmissions rebuilt with 8 steels, 9 clutches, HD sun shell, wide band, shift kit and a 2,200 converter. All the trucks see medium duty towing quite often so it was just a matter of time I lost the other 3
What I'm wanting to do is start yanking the 350's in favor of built blocks for gobs of low end torque and higher mpg's. I picked up some ideas in the last few months but I need to really get it figured out so I can get a shopping list together so I can start hunting down new and used parts.
I can't find the info any longer but I had heard some ideas tossed around. I'm thinking I would like to go with a zero decked 305 block, 0.030 over, worked "193" heads, matched cam, 400 crank for a 334ci So my question is what are my cheapest options?
I heard the Stage IV 193 heads re-worked by Headbytes paired with this combo would get 20+ mpg and upwards of 380 ft. lbs. Yes, I know, sounds unbelievable
So please fill me in on everything else I need for this combo to work well together. I appreciate it!
torque, is built by using DISPLACEMENT and EFFECTIVE cylinder pressure , and mechanical leverage, so cam timing, and DISPLACEMENT , and use of the highest compression ratio the fuel will allow are critical to effective use of the cylinder pressure, obviously octane limitations of the fuel used will tend to limit your compression ratio choices.
keep in mind as the bore diameter is increased the surface area of the piston increases rapidly allowing much more effective use of cylinder pressure. and given that you already own 350 blocks, and any business needs to watch the budget, Id suggest you use as much of what you currently have on hand and those 193 heads are NOT idea,reworked vortec heads on a 383 rotating assembly in the current blocks would be better. and use of injection tends to increase mileage, and a low restriction exhaust and long tube headers and those over drive transmissions help if the rear gear and tire diam will allow you to tow in a effective rpm range.
a 383 built with vortec heads using the current 350 block is the most effective route and economic value.
yeah! youll most likely ignore reading the links, but if you do youll learn a good deal.
http://www.chevrolet.com/performance/crate-engines.html
http://www.hotrod.com/articles/hrdp-0503-chevy-383-engine/
http://www.superchevy.com/how-to/en...-build-a-383-small-block-engine-sledgehammer/
http://www.superchevy.com/how-to/project-cars/sucp-0706-small-block-chevy-stroker-kit/
http://www.chevyhardcore.com/tech-stories/engine/building-the-little-383-small-block-that-could/
http://www.hotrod.com/articles/ccrp-0808-383-stroker-small-block-chevy/
viewtopic.php?f=99&t=6461&p=44294&hilit=volumetric#p44294
viewtopic.php?f=52&t=10579
http://www.carcraft.com/techarticles/cc ... ock_chevy/
viewtopic.php?f=44&t=38
http://www.scatcrankshafts.com/
viewtopic.php?f=52&t=401&hilit=vortec+heads
http://www.carcraft.com/techarticles/cc ... ewall.html
http://www.popularhotrodding.com/engine ... ck_engine/
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