ElkySS

iTrader: (6)

my car is a daily driver. when i eventually get it where i want it, it will put out 750-800rwhp on nitrous. my question is when should i think about having the block filled? i already have a forged bottom end so im not too worried about the rotating assembly breaking. mainly the block.

are the main stud girdles worth anything?

SPRAYED Z

iTrader: (4)

NOw!!!!

96capricemgr

iTrader: (1)

BEFORE the block is machined.

You fill it now it will need a fresh line hone and bore hone IF you can get away with it without having to replace the pistons.

ElkySS

iTrader: (6)

i mean how much hp before it is necessary

96capricemgr

iTrader: (1)

My point is you have a fully assembled running engine. To fill the block now you are looking at halfway starting over. I mention that because "you already have a forged rotating assembly" so it sounds like you want to modify your current setup rather than start over.

Wicked94Z

iTrader: (26)

This^^^

I'd do it when the motor becomes more of a strip than street motor, regardless of power level. You can NEVER have too strong of a block, EVER. I think my machinist did it for 150 bucks, which is nothing. Let the stuff cure for 2 weeks before you start machining it.

ElkySS

iTrader: (6)

im just curious how much a block without fill can handle reliably. when does having a non filled block become an issue?