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400HP

 
chevyhead24-7
I love my Chevy Chevette!
Posts: 1
Joined: 08/09
Posted: 08/28/09 08:42 PM

trying to get 400HP for my 1972 monte carlo 350 all stock motor.  was thinking of using roller cam,lifters. need to know all the after market parts to use, and what the bore size should be , 30 over 0r 40 over.  I'm not sure, should i get better crank or  redo the one that's in the car.  I need to know everything from cam ,pistons,lifters,rods,heads,carb,intake.  I just want to get 400HP, that's why i know using the best parts will help me in the long run.   Don't get me wrong i've seen online about all crate engines, but i rather use my original 4 bolt main 350, so help me out with the wright combos.  By the way I'm new to the site.  

                 Thanks!!!  

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69nova355.
I mow my lawn and find Chevys
Posts: 2560
Joined: 08/09
Posted: 08/29/09 04:59 AM

are you doing this all your self, do you know what you are doing? or are you taking it to a machine shop? i would keep the block get rid of the crank and get a 383 stroker kit with everything together. it will take all the guess work out of what you will be putting out. go .30 over in case you want to rebuild later,that with the 3.75 crank will give you a 383 stoker-it will give you 400+hp depending on c/r. and the package you get.depending on if its for the street or track you can choose your cam and which intake to use.  

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p2-72chevelle383
I mow my lawn and find Chevys
Posts: 1760
Joined: 08/09
Posted: 08/29/09 05:06 AM

look at the combos some of those crate motors have and use similar parts in your motor.400hp is easy out of a 350 with a mild cam,some decent compression and ported stock heads. i would get a 3.75 crank and bore .030 to get a 383 if your gonna rebuild it anyways its not that much more money for considerably more torque.look in summit at the holley systemax II topend kit it claims to make 425hp and 425lb/ft on a 350 stick it on a 383 and youll see a bit more  
p2-72chevelle383

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zman123
Everything in my driveway’s a Chevy
Posts: 537
Joined: 06/08
Posted: 08/29/09 06:03 AM

I'm using an Edelbrock package on my 355, they advertise 400+, Mine dynoed at 400 two weeks ago. It's a pretty good bet any of the packages (heads, cam, lifters, intake, carb) advertised from the manufacturers are going to be right on the money powerwise. No messing around guessing which components will work together. Just make sure to put a good bottom end together and you will be happy with the result.  

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SMOKESHOW
I mow my lawn and find Chevys
Posts: 1001
Joined: 09/08
Posted: 08/29/09 06:10 AM

Depending on your budget, you can buy a new rotating assembly, if you are going that route there are many good 383 stroker kits out there.  Look at Scat or eagle to name a few.  As far as heads go look at AFR or Dart, look for around 64-67cc combustion chambers and intake runners of 185-205cc  use a flat top piston with quality rings and you should net 9.5-10 to 1 cmpression fine for pump gas.  As far as your cam choice goes let's assume you are going to use at least a 2500 rpm stall and a 373 gear, and your ride weighs in the neighborhood of 3500lbs you could look into the XR274 cam kit it will have everything to install the cam including springs and lifters.  If you don't want to have to keep up with valvetrain adjustments you would be well served witht the Comp XR282R as for an intake the Edelbrock performer RPM is hard to beat as is the victor jr for a 383.  The set up with either of the cams will get well over 400 hp andbe fine on the street or strip.

Good Luck.  

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