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to all engine builders out there I need your help

FatHarryPotter

FatHarryPotter

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Hi guys. I am really in need of some direction. I have a 454 out of a chevy 1 ton. It has tbi and i am ditching all of that. Block casting number is 10068286 which i have for to correspond to a 1990 mark IV short deck 4 bolt main block. Head casting number is 14092360. I believe they are F229 and are the peanut heads everyone likes to trash talk online. Intake casting is 10052952.

So now on what I would like to do. I want to open up this motor with doing heads, cam, intake, headers. I want to go back to carb for simplicity for now. smog is not an issue. I would like to raise compression with heads to 9:1 or somewhere around that if possible. I was think afr heads with a air gap intake. I just really want 4000 to 500 hp with lots of torque on the low to mid range. Redline should be around 5500. I really just neew help on picking out the right parts to accomplish this as all the research i have done says that you really need to get these components that will work with each other or its like throwing money down the drain.

Any direction will be much appericated

Robert
 
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Aluminum heads are cool BUT IF IT WERE MINE I'd go with some factory 049 or 781 heads and put that money elsewhere. The numbers you want are easy to achieve without getting super spendy parts.

I haven't had mine on a dyno but I'm confident I'm in the 400+ hp / 500 tq range, my only fancy part I spent a lot of money on was a hydraulic roller cam. A set of small dome pistons with 781 heads yields close to 9.5:1, nothing fancy. After that pick a cam that'll do what you want and some quality headers, intake, etc. (my specs and part numbers are in my build thread linked in my sig)

I'm not saying it'll be cheap, just that it doesn't require fancy parts. Don't skimp on machine work!
 
Thanks for the reply nvrenuf. I have read up some on the 049 and 781 heads a little. They are getting a little harder to find now days. I was hoping to hit that mark without having to completely tear the motor down and change the pistons and such. I wanted to just do a top end if that is possible. If that wont work I will have to figure something else out. I will also check out your build thread.
 
Roller cam is good advice , if you cant find good 049 or 781 heads then I would look at some of the more budget minded iron heads from the aftermarket
 
Pull the heads and do a home brew port job, spend the money on a set of pistons to get it around 9.5 compression, run a comp extreme 4x4 cam, and you'll have 450ish hp, 550ish torque off damn near idle with no need to ever spin it past 5000.

Saw the build online a while back.
 
Aluminum for anything else besides racing due to trying to save weight is a waste. Like stated about a pair of 049 or 871's are good but you can also make good compression w/ closed chamber heads very easily due to smaller combustion chambers. meaning less dome to get compression up. A good port and polish will help out a ton on those heads, they have smaller valves but you can get a head improver kit from Completion Products that comes w/ valves, springs, retainers, keepers, seals for right around $180 or so
 
I didn't think CC heads were compatible with open chamber pistons?
 
76zimmer said:
I didn't think CC heads were compatible with open chamber pistons?
Click to expand...

You can run CC Pistons on open chamber but not vise versa. But he didn't say he already bought Pistons or anything I'm just throwing options out for him. Could even do zero deck w/ a CC head to get up the compression
 
My misunderstanding, I thought you were saying use CC heads on his OC shortblock.
 
A 454 w/ a good port and polish job on some heads w/ stock valves, 9.5:1 compression, 750 carb, dual plane intake, & a comp cam 11-239-3 cam you'd be looking @ 430hp @ 5K and 506tq @ 3500 roughly using desktop dyno.....

Bigger valves will give you rouhly 456hp @ 5K and 512tq @ 3500
 
00d0d_eHADehgpgrQ_600x450.jpg

is this an 049 head?
 
agreed, that's what your looking for the last 3 digits of the casting number under the valve cover.
 
Yep either one will get ya going in the right direction, your gonna have to check the CC of the heads though because they very from casting to casting to get the right compression ratio you want.
 
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