OK, here we go.
First the block.
How did you find this block? That is one of the best blocks that Chevy produced. It's got higher Nickel and Tin. It's got the the Heavy Duty main caps -yes there is a difference. The block has very little core shift. This kind of block was only used for LT1s/L82 and Heavy duty trucks apps and is very RARE in the mid seventies. I've been known to keep blocks like these for 25 years for myself. I have one std bore right here. You're really lucky or very good-
Second the rods.
Yes, those are the good "X rods". Good strong rod for Hi-per street use. Those and the "B" rods were used to make "PINK" rods. You can work them with heat treating (you can do that at home)-I know how. Also, with good rod bolts and the heat treating (side polish not included) these will be a "PINK" rod just like the factory--that is the way they did it with hand picked rods.
OR--
Use the Scat 5.7 or 6 inch CHEVY FORGED 4340 I-BEAM With ARP 8740 7/16" CAP SCREWS. This is the rod in my 400. I got the 6 inch (best way to go- only pistons cost a little more for the 6 inch rod).
I believe they are only 314.00 for a set of 8. You can NEVER get the stock rod as strong (no matter how much work you put in the stock rods) as these are at this low price. Being a "cap screw" they make a great stroker rod for the SBC cause they clear the cam.
2-ICR5700-7/16 25700716 BUSHED 5.700" 2.100" .927" .940" 590
2-ICR6000-7/16 26000716 BUSHED 6.000" 2.100' .927" .940" 605
They do come in press pin--not the best way to go.
These rods were so "pretty" I hated to put them in the engine.
Third the crank.
Ok I know you don't want to hear this but I recommend a good forged Scat crank. At their price (I think about 400.00) it's a steal and really strong. If, you don't want to go that way then Scat's "better" cast crank at (if I remember correctly) 249.00.
Yes, I am a Scat fan. For their pricing you can not do better. I have talked to guys that have had "issues" with Eagel stuff. Scat has had no such "issues". The 400 ( 430 hp with over 500 ft lbs of torque) I'm doing right now is getting Scat rods and an Eagle crank ( I know it's not Scat but I'm trying to change his mind).
The thing that has me concerned is the 100 lap races. The stock crank and rods MAY not hold up under hard "load" on and off for the duration.
What cam and heads are you thinking about??
Any way you want to build this I'll be there to help.
