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Old 10-14-2008, 12:57 PM
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second place is the first losr
 

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bad new 454

i have recently buy a 4x4 3500 1984 454 the motor as a broken rod and piston i want to rebuilt it do you think i can do something with this block
they need sleeve for sure and what wrong with piston and rod of big block
do i need aftermarket rod and piston and what about stock crank.the engine will go in a mud truck so i need something tough.i have a set of rect port close chamber to put on it . any suggestion will be appreciate thank.










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Old 10-14-2008, 01:47 PM
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second place is the first losr
 

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sorry for the link below the picture i dont know how remove it
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Old 10-14-2008, 01:49 PM
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I do believe you can use the block. All you need to ground the area to smooth edge to reduce any stress cracks. The cylinder wall do not appear to have any hair line cracks. I would magnaflux the block for cracks to be safe.
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Old 10-14-2008, 03:01 PM
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what is the max overbore for this block .The rod it the cylinder and make a good groove but it does not appear to be cracked
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Old 10-15-2008, 01:29 PM
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second place is the first losr
 

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i would like to know how much rpm stock crank and rod can reach safely for piston i will go with forged piston.
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Old 10-15-2008, 01:52 PM
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Keep it under 6000 rpm. 454 motors are externally balanced at the balancer and at the flywheel if it stock.
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Old 10-15-2008, 03:15 PM
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Road Ahead

I am doing what it looks like you are going to try.
I started with a 454 engine/trans from a chevy truck (1986 I think) and I hope to have a fresh built BBC engine for my El Camino.
The block was good but it had spun a rod bearing so the crank was borderline (I replaced it). I had the block serviced and bored 030.
These truck motors have the peanut port heads, which are great for low rpm torque on motor homes and tow trucks, but not what you'll want in a street/strip car. I got some 820 castings serviced with the large valves and new springs for my Comp 280 magnum cam.
I also have new pistons, new balancer, flex plate, timing set....
By now you get the picture, unless you are only going to do a basic repair type of rebuild, it gets to be very expensive.
I also have to prepare the care for the BBC motor with brake upgade to disks, new springs, new exhaust, and upgrade of the radiator. I am sure I'll have about $5000 in the motor and I'll spend at least another $2500 putting it into the car.
I am not trying to discourage you, just be prepared to deal with all of the issues on the road ahead.
I will say that when I'm done I expect to exceed 500HP, and still spend less than the $10000 needed to play the crate motor game.
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Old 10-15-2008, 07:22 PM
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hey starnest you have stroker 496 kit on ebay for around 1000$ im pretty sure i will be close with 500 hp with a 496 and this head 3904391....67......rect..CLOSED..396, 427, 107cc chamber
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Old 10-16-2008, 02:09 PM
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Not a Stroker

Quote:
Originally Posted by chevrolet327
hey starnest you have stroker 496 kit on ebay for around 1000$ im pretty sure i will be close with 500 hp with a 496 and this head 3904391....67......rect..CLOSED..396, 427, 107cc chamber
I'm building a 460, not a stroker.
You should easily be able to build a 500hp motor with the 496 stroker and the rect port closed chamber heads. Probably more like 650hp.
Watch your compression ratio with the 107 cc chambers, you'll be ok with flat top pistons and a long duration cam.
I would also recommend looking into Singh grooves (other threads on this site - search for quinch, and touch base with Automotive Breath). I have researched them and I am convinced that they will really help any build. Particularly of interest to you because the closed chamber heads have a large quinch/squish area.
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Old 10-16-2008, 04:15 PM
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do you where i can buy a sleeve for 454
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Old 10-16-2008, 05:06 PM
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For what it will cost you to sleeve the cylinder and other machine work done, you can buy a good rebuildable block probably for the same money and have a decent block. The only time I would repair such damage is if you were trying to keep numbers matching or it was a rare block, other than that look for another block to work with.
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Old 10-16-2008, 05:58 PM
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second place is the first losr
 

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ya i know its expensive but 454 block are very rare in my area 1 year for find this one
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