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Big Block Build


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Picked up a 454 big block last august courtesy of Patterson. Had a wiped cam and I knew it was in need of a full rebuild.

Here it is the day I picked it up.

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Within 2 days I had it in class and fully torn down.

Balancer was on tight enough that I broke 2 pullers before getting it off.

When I received it, it had a 10qt oil pan on it as well. Along with full ARP hardware for the timing chain cover and oil pan.

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Inside was a Scat 9000 series crank, Scat forged pro-comp i-beams, and KB hypers.

 

Pistons and rods finally out.

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The cam and lifters were wiped as well. They took out all the bearings.

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And down to a bare block. Which is how it stayed up until last week.

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Brought it back and was finally able to get out what plugs were still left in it.

 

For cleaning I had two options. I could either shot peen or bake the block. I choose to bake the block. Baking takes the block to 500 degrees for about 40 minutes

Before

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After

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Turns most of the dirt/carbon/paint to ash.

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Finally clean after a run through the jet washer.

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Wet-magged it today as well and everything looks good.

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what kinda power will it put out and whats it goin in? might as well bump it out to a 496 since ur in there.

 

:gabe:

 

Picking up a stroker kit tomorrow. Will be a 489 when I'm done.

No clues on power on the power level....it'll make 600 somewhere on the dyno graph with pump gas. With the 10.5:1 compression it'll be running, it leaves room for a blower and e85 down the road :masturboy:. It will be going in my dads 68 C10.

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Got some work done with what little shop time I had today. Installed main studs and checked to see if I had to align hone. Spec is 2.937-2.938 and I'm right at 2.9375 so I won't have to be doing any align honing. I chose 1/2in. ARP studs with provisions for a windage tray.

 

Studs installed and waiting for the caps.

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TQed to spec with the caps installed.

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Got a decent bit of machining done on the block today. I square decked it. One deck was at 9.798" and the other was at 9.796", essentially the stock 9.8" deck height. Zero deck for new set up is 9.780. I ended up right at 9.7785 on both decks after machining. and I'm okay with that, as I'm already a little low compared to the compression I'd like to have.

 

Squaring fixture set up in the block. Theres a 90degree plate on the other side that we level off of to assure a square deck.

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It then got setup in the machine and decked.

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After all is said and done.

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This might be a deeper and less related question, but if BB's get your more displacement and tq whats the attraction to a v10 or v12? wouldnt the v10-v12s have more heat and thus less power per cubic inch?

 

That's not something I'm able to answer as I've not put a lot time in researching V10-12s. Guess its time to start studying up on them. :)

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That's not something I'm able to answer as I've not put a lot time in researching V10-12s. Guess its time to start studying up on them. :)

 

For sure. By no means did i mean to ask you specifically, just throwing it out there. One of those things ive never understood but havent made it a point to research. :)

 

thanks for the info on the BBs.

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Took the pistons out today. All measure right at 4.2776". Meaning I wanted a final bore of 4.282. I chose to make it a a little on the loose side as I plan on spraying some nitrous with this build.

 

Forged SRP Pistons. 18cc dome will create a 10.2:1 CR with my 119cc heads. Uses 1/16, 1/16, 3/16 Rings.

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Instead of the traditional bore and hone. We decided to hone it over. We have diamond stones in our hones and create less/zero taper as compared to a true bore/hone, as the hone is almost fully computer controlled.

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Edited by Nickey427
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Got to finish taking all my cylinders over today. After finishing, I went ahead and plateau honed each cylinder. This knocks down the peaks that even diamond honing leaves behind, thus aiding in ring sealing even more.

 

All finished with machining!

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Also took some time to grind of casting flash.

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