Already posted this in the Tech/General Engine section, but they sent me on to you guys. Hope you can help me out


Well this will be my first engine build, although I have done some minor stuff like a cam, intake, and soon a change of heads on my current engine. I've been asking alot of friends, but I wanted to get a wider range of opinions before I lay my hands on the thing.

Here's some of my general ideas for the project: It all started when I got a 2-bolt virgin (unbored, unmessed with) '78 block for $20. Rotating assembly was included too, but it is all factory cast so I have no need for it. I want to make some serious power and use an ATI Procharger centrifugal supercharger to get there (P-1SC). I would like some high RPMs, but nothing too crazy. That alone would be enough for me to figure out, but here's the kicker, I want it on the street. I drive cross country and in traffic, it is a daily driver (and will stay that way). This also needs to be as budget as possible (don't laugh )

Most of the driveability issues will have more to do with the heads/CR/cam/tranny choices I think, and for now I'm starting at the bottom and working up. So far I am thinking about : Scat 4340 forged crank (normal weight), Scat H-beam rods, JE forged pistons. I don't have alot of money to dump into the trick lightweight parts, but I will not skimp on the important things. All bolts will be ARP (or better if there is something). I think I will need to 4-bolt splay this block also.

1. What do you think of my choices?

2. What little modifications can I do to these parts? I also intend to balance/blueprint everything. Is there casting flash to remove or minor modifications to the block I can do?

3. Know of any cars with centrifugal S/Cs? Links would be very helpful.

Thanks alot, I will keep you all updated as I research more, and as I get into it this summer.


Now I am considering whether it is necessary to convert to splayed 4-bolt or not. If I use the best bolts in existance, will that be enough? Will the cap itself break? I don't want to cut any corners that will bite me in the *** later on, but the $650 my friend mentioned for the splayed conversion would be good to skip if possible.

Similar question about H-beam rods, are there I-beams (cheaper?) that will handle my amount of power just as well? Basically I'm looking for the approximate HP that I will not want to risk anything less.

-Chris

 

There is a ton of good info. Start here: https://www.thirdgen.org/techbb2/search.php

 

hehe

anywho what hp #s you looking for

 

 

I would like something around 500-600 at the wheels. Obviously that's not all that specific! Mostly I just want to build the best engine I can, with the best parts I can afford, and see what I come up with. I'm not trying to be competitive in any particular class at the dragstring, I plan to do alot of racing, but just for fun.

Also, I may be lenient with that upper limit

Oh and thanks, I'm already looking through some of the old posts.

-Chris

 

this is what you are looking for

https://www.thirdgen.org/techbb2/sho...42#post1278542