OK. I have a 350 block (209 casting), and I am debating on what to do with it. I want to bore it over .030, use 3.50 stroke forged crankshaft, 6.125 rods (for high revving), and 383 pistons. This should work out since 3.75/2 + 6.0 = 3.50/2+6.125. The 383 pistons will be dished, I want 8.5-8.6 compression ratio.

Want to use a holset ht-60 or larger turbo, holley 650 dp modified for blow-through. I'm thinking of using the 441 heads I already have, and opening up the intake port while leaving the exhaust port at 1.5 to increase exhaust velocity to spool the big *** turbo. Also I'm not sure if these heads will handle .600" lift or not, if not I'll have to go with aftermarket heads. (brodix?)

Still with me? Ok. My question is, will the aluminum forged pistons be strong enough to withstand a lot of boost, since it should have thinner ringlands because of the longer rods?

Looking to rev this motor out to 7500-8000 rpm, turbo spooling around 3800-4200rpm.

 

small problem i see is the piston will be out of the hole 1/2" or so

 

No. This is with pistons made to work with 6.0 rods and 3.75 stroke.. but nevermind anyway, I found out that the pistons will be too weak for boost and longer rods are not worth it.