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chevykid1955 05-07-2013 12:52 PM

small block chevy 400
i am building a chevy small block 400 and was wondering the hp ratind i could expect, im putting vortech heads with a 2 inch rise and a turbo set up with a 454 tbi fuel injection and a mild cam, and i know to have the steam holes and extra water holes drilled im having a machine shop do that, any idea about horse power and torque? and im pushing 10 lbs of boost

techinspector1 05-07-2013 01:21 PM


Originally Posted by chevykid1955 (Post 1673747)
and im pushing 10 lbs of boost

That's gonna be tough to do with the 64cc Vortec L31 heads. You'll need to build the motor at 7.5:1 static compression ratio in order to use pump gas and I don't know where you're going to get 54cc dished pistons. :spank:

vinniekq2 05-07-2013 03:58 PM

I dont think any of those parts will match techs combination
High CR/turbo/cast iron heads?GM 454 TBI?

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