Well i have a 6.0 that has been bored .3o . It will be a 408 and will see boost in future possibly about 10lbs with a whipple axo side mount supercharger that has been customized with intercooler.methanol will also be in the picture

question is what crank would be good on a semi strong budget with a 600-700 hp goal. Been looking at eagle 4340 4.00 forged stroke and lunati forged crank as well.

Using the eagle 6.125 h beam rods said to hold up to 700hp

pistons were going to k456x3 4.030 -20cc wiseco's which state a 9.7 cr on 65cc heads.not sure on ring gap and how that plays properly for what im doing,need help on that too!?

Now the tricky part is i plan on running my p@p 243's heads as well which are 64cc.(non-milled)

am i doing this correct and what crank would yall recommend for me.thanks in advance for help(semi new to this)

 

I spent $2500 on my whole rotating assembly balanced and installed. Including the machine work. Callies compstar crank and rods with Wiseco pistons. I have had zero problems and plan on running 700-800hp. I'm sitting at 456 rwhp N/A right now.

 

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Callies Compstar Crank/Rods and Wiseco Pistons!

 

thanks for some input. would yall recommend going with the 243's like im doing but with the -20cc wiseco's @9.7 cr. what actually is a good CR to be around if ima boost on a supercharger with 7lbs aprox?