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  #16 (permalink)  
Old 03-13-2010, 08:20 PM
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Quote:
Originally Posted by 64r1
Yea ? well, my buddy has some stock 454 heads off a light truck he will let me have, they fresh out of the machine shop, don't know what heads they are. Could i do what double v23 said and swap those heads and get headers and a cam for the 427? then later on manifold and carb ,distributor,etc? would that make sense?
It could make sense w/a few proviso's.

If your budget will not allow a std. deck build and you really want a BBC of any kind, the 427 TD may make 'sense'.

You need to know what heads your buddy has, to know whether they'd be a good replacement.

On the other hand, the TD 427 is somewhat limited by the 4 ring pistons and can be a chore to swap due to the height of the engine when installed into a car- though it will fit in larger bays.

Quote:
or should i just keep looking for a standard deck being that I'm not looking for a total build at this juncture? *snip* Just don't want to tell my buddy no on the motor then find out I could have just swapped heads and put a cam in it for the time being.
Unless you are in a hurry, I'd hold off for a std. deck 454 engine to build up. But that's ME.

It almost sounds like you had no "want" of a BBC until this truck engine showed up, and IT made you consider the whole BBC thing.

You CAN "just swap heads and put a cam in it for the time being". Just know that there are compromises involved, is all.

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  #17 (permalink)  
Old 03-13-2010, 09:59 PM
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You guys along with my buddy have been a great help. Yea the whole big block thing just came about from my dad. I always wanted a bbc but never had the time nor money to even bother looking for one plus haven't had the money to mess with my 64 impala but against my wife's wishes i have kept the car. i do not intend to sell this car i have been through 4 impala's and tired of finding one once i sell one. My father is willing to help financially with my build so thats very uplifting i haven't asked him for a hand out He hates seeing the car just sit in my garage. Anyway i have a few bucks to get a bbc platform thanks to him. i have another lead on a 454 bbc he is about an hr from me don't know if it runs but "he said it did"( we all know thats 50/50) anyway he wants 700.00 and its complete with all the accs, but minus the carb, casting number is 14015445 that is also i believe the same on the rv here in town that my dad knows of.hope my dad can get in touch with his friend with the rv cause that motor is still in the rv and runs to my dads knowledge. Plus he thinks the guy will let it go for 500.00 By the way the heads my friend gave me the casting number is 140810457.
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  #18 (permalink)  
Old 03-13-2010, 10:06 PM
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Quote:
Originally Posted by 64r1
By the way the heads my friend gave me the casting number is 140810457.
Cool that your Dad's on board!

I don't see the head casting number 140810457 in the usual places I look...
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Old 03-13-2010, 10:20 PM
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*14081045 i found it on top of the head in between the valves thats where i got it from don't know the locations but when i punched in the numbers for the heads it came up oval port open chamber 454, it didnt have heavy duty truck or td truck next to it so i assume thats a good sign?
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  #20 (permalink)  
Old 03-13-2010, 10:31 PM
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Probably in the range of 118cc combustion chambers. Should be decent heads to build from.
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Old 03-14-2010, 12:50 AM
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Quote:
Originally Posted by 64r1
*14081045 i found it on top of the head
That's better- the extra "7" was throwing things off.

Iím sorry to be the bearer of bad news, but those 045 heads are PP. Can be had for $100-$150.

Found a photo of them from HERE.




Last edited by cobalt327; 03-14-2010 at 01:15 AM.
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  #22 (permalink)  
Old 03-14-2010, 09:47 PM
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Well, it ain't the end of the world. They could still be used in a low-rpm build....this was copied from a Car Craft article....

"GM Iron Peanut Port
This cast-iron head is called the peanut port because the intake ports are not much larger than their namesake. Omar Cabrillo at Coast Motor Supply in Canoga Park, California, helped us out by supplying a pair of the heads complete with tiny stock valves, new guides, and a basic valve job. These peanut ports are roughly 30 percent smaller than an aftermarket 270cc version. There are larger factory oval-port, cast-iron, open-chamber heads at 250 cc, but the only ones we could find had been modified, which would not be representative of an OE head. But don't count these peanut clusters out. If you were looking to build a budget-oriented Rat for towing where power above 4,500 rpm was not a concern, these heads would be an excellent choice with almost 600 lb-ft of torque at 3,200 rpm. If you were to pocket-port these heads and add larger 2.19/1.88-inch valves, you could make 530-plus horsepower. That's not bad for iron castings."
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Old 03-15-2010, 12:36 AM
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yea i was hoping for a bigger head but Im not complaining my buddy hooked me up with them so if i dont use them i would give them back. Well, got off the phone with the guy who has the 454 about an hr from me, he broke the tranny from the block while doing so rotated the motor and water came out one of the spark plug holes.Don't know yet how severe but atleast he called to let me know that was stand up thing to do. Anyway if its not too bad maybe i can get the block and bottom end for cheap. still waiting to find my dads friend but other than atleast we arent out of any money
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  #24 (permalink)  
Old 03-15-2010, 12:55 AM
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convert from points to hei on talldeck

Just new on board so here goes the kid is building a boat motor (427 TD ) he has alum heads intake all order& was trying to find a hei to replace the point set up , this is going in a jet boat . Later bake
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  #25 (permalink)  
Old 03-15-2010, 06:16 AM
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Quote:
Originally Posted by techinspector1
Well, it ain't the end of the world. They could still be used in a low-rpm build....
The first 454 I built was w/a set of PP heads.

I ported them and ended up staying w/the stock intake and exhaust, the ports measured to be ~220 cc- after porting, so they're small as cast.

The engine ran very good, actually. The cam I used was a .544 lift w/duration of 238 degrees @ 0.050". Cast iron intake w/Q-jet and 1-3/4" headers.

No idea of the HP or even an estimate from a 1/4 mile trap speed- the engine was barely broken in before it went to a 4-wheeler who had way more $$$ than brains, so I sold it- one of those deals that I just couldn't pass up.

Built a real nice Pontiac engine/tranny/12-bolt rear end for my '81 Camaro from the proceeds.
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  #26 (permalink)  
Old 03-22-2010, 04:42 PM
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I passed on the 427 and found a 454 out of an rv, runs great. Casting number is 12550313 it pulls up as a 91-95 454 4 bolt gen v block. I think i will be happy with as my platform for the future.
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  #27 (permalink)  
Old 03-22-2010, 04:47 PM
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Quote:
Originally Posted by 64r1
I passed on the 427 and found a 454 out of an rv, runs great. Casting number is 12550313 it pulls up as a 91-95 454 4 bolt gen v block. I think i will be happy with as my platform for the future.
Have you had a chance yet to research the Gen 5?
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Old 03-22-2010, 05:34 PM
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no I have not is it bad news?
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Old 03-22-2010, 05:52 PM
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here is an article i found http://www.454ss.com/Articles_new/GEN5.asp I don't find the changes to overwhelming from the mark lV to the gen but being that this is my first bbc i guess time will tell.
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Old 03-22-2010, 05:53 PM
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No, I wouldn't call it "bad" news. Maybe "different" news?

The Gen 5 has some differences from the Mark IV and the Gen6 that need to be considered, but over all, it can be made to run like any of them.
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