Thanks for the pointers! Just back from a quick parts muster in the garage, and here is what I have:
- Block - tag says .030. I also discovered, when unwrapping it, that one bolt hole was chipped. An easy fix according to the welding instructor across the street. It's been bored, requires a bath to remove the protective coating, and a hone.
- Sealed Power rings E243K
- Melling M55 oil pump
- Crane Blazer 284-2H cam
Deg duration @ .050 - 224 234
deg adv dur 284 295
deg lobe separation - 114
open/close .050 cam lift - 3 56, 41 (2)
gross lift .465 .488
valve springs 2620
push rods 1000
timing chain and gear assy 3405
- Pistons Speedpro H615CP. Hypereutectic Chevy 400 .030 dish pistons with relief valves. Found this link: 400 CHEVY Speed Pro Dish Pistons H615CP 5.7 Rod +30 - KMJ Performance
Misc - rods (not enough)
Clevite 77 bearings
flex plate for 350 (and apparently 700R4
Everything is completely unassembled. Mostly new in box, except connecting rods and pushrods, which will be new by build time.
Is this enough? I can post pix if that helps.
Originally Posted by techinspector1
Is the short block assembled or do you just have all the pieces you listed?
If you have them unassembled, give all the info you have on the parts. Piston diameter, piston compression height, part number if you have it, rod material, rod length, etc. There are lots of smart guys on this board who can help you assemble a motor that will do what you want it to, but we must know every little detail of what you have now in order to help you. Do you have the EXACT diameter of the bore?
You may want to use heads with a larger combustion chamber volume or you may want to use a more conventional head with a dished piston rather than what you have. You will want to engineer the build at somewhere around 9.0:1-9.5:1 static compression ratio with iron heads and no more than about 10.0:1 with aluminum heads if you plan to run the motor on pump gas. The more static compression ratio you run, the more cam you have to run to prevent excessive cylinder pressures that will detonate on pump gas. It's all a balancing act, involving all parts that must work in symphony with each other toward a final goal. It's what's referred to as a COMBINATION.
This afternoon, I DynoSimmed a combination for one of the other members of this board that used ProFiler heads. These are excellent aluminum heads that come in 64, 70 and 72 cc configurations and could be matched with the proper piston crown configuration to make the best static compression ratio to meet the needs of your build.
SBC 23 Degree Cylinder Heads
See the Sim here on post 18....
Help with HP