I have a fairly well built 355 TPI with hyer pistons and a forged crank, resized police rods, Crower cam with an Advertised Int. duration 278/497 lift Exh. duration 286/518 lift. Roller rockers with matched 6500rpm springs and HD pushrods. Everything has been ported and polished and has a jacobs Ign. coil and taylor 8.8mm wires with AC t45? plugs at .35gap with Bosch 22lb injectors and an adj. fuel reg. at 50psi. The heads are iron with a 62cc and 10.6CR.
Is all of this too much Compression to safely run a SC and would I be able to run enough boost to make it worth the purchase?
With the engine, is it built enough to handle the stress or should I just give it a bit of nitrous of say 125-150 shot or would it not handle the nitrous??

 

hyper pistons and boost don't mix. spray that sucker.

 

Are hyper pistons bad or do they just have their pros and cons? If so, what are they?

Are they okay for the spray??

 

hyper pistons are weaker, but they are generally light and they last a long time.

I would spray it- you will not be able to run much boost.

 

they're not bad pistons for spray or NA, but you really need forged slugs for any boost application.

Stock LT1s are bottle babies (love the juice) and are 10.5:1 motors with hyperutectic pistons. Just have a safe tune, make sure there's plenty of fuel, and use the right spark plug and it'll be safe to spray that motor. There's tons of info in the N2O Tech section to answer a lot of the questions you may have.