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Old Jan 12, 2018 | 11:11 PM
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Default BBC engine choices.

I am trying to decide which size to go with 502, 540 or 572. The price difference is a concern but I have some sway with the home finance official. If you are driving one of these why did you pick that CID and not one of the other 2.

Answers to anticipated questions:
1972 convertible original Big Block, 4 speed, car. No engine or transmission and has not been on the street or had a motor in over 10 years. The person I bought it from bought it without a motor or trans. I have a Tremec 5 speed kit on order and built a 370 rear end.

Thanks for all input

Jim
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Old Jan 12, 2018 | 11:39 PM
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If I could afford a 572 that would be in my car.
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Old Jan 13, 2018 | 10:03 AM
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Has anyone used this vendor? http://stores.ebay.com/whiteperforma...=p4634.c0.m322
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Old Jan 13, 2018 | 10:07 AM
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If it were in my yard, I go with the closest dated, to the car, 454cu. in.

But that's just me. A BB '72 was a cool car just the way they were built. AND it's a convertible! WoWza!

Let's see some pic's, please!

Edit: FORT WORTH ROCKS! Love it

Last edited by Don Rickles; Jan 13, 2018 at 10:07 AM.
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Old Jan 13, 2018 | 10:15 AM
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ive got 2 - 588'' BBC engs fresh off the dyno,new alum heads and intakes,all good parts,''no Chinese ''parts,,i'll sell for less then 1/2 of what you could build these for
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Old Jan 13, 2018 | 10:27 AM
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I also have a 72 that was an original BB car. It came with an auto and 327.
I went with the ZZ502 crate engine. I also changed over to a M22 4 speed. I was going to get a larger engine but where am I going. I am not going to race it. 502 HP is more than enough for the street.
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Old Jan 13, 2018 | 10:44 AM
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I bought a 540..
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Old Jan 13, 2018 | 11:00 AM
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White Performance on ebay, unless I overlooked it, has no place to ask a question or show where they are located or a phone number.
That would bother me before I'd flop down $12,000 or $14,000 or any amount!!!
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Old Jan 13, 2018 | 12:25 PM
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572 is a tall deck engine. so exhaust and hood clearances will be a issue. a 454 or 502 from GM will be the simplest. the more torque the more your prone to break the rear end and half shafts. so the more cubes the more you need to spend else where
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Old Jan 13, 2018 | 02:06 PM
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I'd look at all of the choices- I just built a 496, but I already had the block. If I had needed a block, I would have a 565--
A tall deck block seems to be a real hassle in a Corvette- header clearance, hood clearance.
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Old Jan 13, 2018 | 02:23 PM
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yes 572 = tall deck.. which means a new hood, finding a body man to install/adjust/paint the hood, match the paint..
a 454 or a 496 ( a punched and stroked 454) would be the easiest swap from a reinstall/fitting of all your parts standpoint..
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Old Jan 13, 2018 | 03:39 PM
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Originally Posted by Jeffs82c3
I bought a 540..
Did you build it or buy it? How much HP and TQ? Do you have 1/4 mile times and speed? Is it a standard deck or tall deck? Details man. I need details. And a picture or 2.

Thanks

Jim
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Old Jan 13, 2018 | 03:44 PM
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Originally Posted by 409/409
White Performance on ebay, unless I overlooked it, has no place to ask a question or show where they are located or a phone number.
That would bother me before I'd flop down $12,000 or $14,000 or any amount!!!
There is a place on the right to ask seller a question and it ships from Kingsport, Tennessee. and 99.5 percent good feed back. https://www.ebay.com/usr/skipwhite?_...p2047675.l2559
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Old Jan 13, 2018 | 03:53 PM
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Originally Posted by Nowhere Man
572 is a tall deck engine. so exhaust and hood clearances will be a issue. a 454 or 502 from GM will be the simplest. the more torque the more your prone to break the rear end and half shafts. so the more cubes the more you need to spend else where
It says it uses a 9.8 Dart Big M block. I'm using a Tremek TKO 600 5 speed. The differential is completely rebuild using high end American parts 3.70 gears and new offset trailing arms. So the only question might be the half shafts?


Jim
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Old Jan 13, 2018 | 03:59 PM
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Originally Posted by joewill
yes 572 = tall deck.. which means a new hood, finding a body man to install/adjust/paint the hood, match the paint..
a 454 or a 496 ( a punched and stroked 454) would be the easiest swap from a reinstall/fitting of all your parts standpoint..
The body is in rough primer and needs to be taken down to glass. A couple of small cracks and the wholes where the luggage rack was mounted needs to be filled. I have 2 L88 hoods. One with an air box and one without an air box. So paint and body will be in the future.


Jim
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Old Jan 13, 2018 | 04:00 PM
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Originally Posted by 72 Project
It says it uses a 9.8 Dart Big M block. I'm using a Tremek TKO 600 5 speed. The differential is completely rebuild using high end American parts 3.70 gears and new offset trailing arms. So the only question might be the half shafts?


Jim
Also depends how sticky your rear tires will be. Your U-joints might fail and you might twist a half shaft. I wouldn’t bet the farm on the rear either.
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Old Jan 13, 2018 | 06:25 PM
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Originally Posted by 72 Project
I am trying to decide which size to go with 502, 540 or 572. The price difference is a concern but I have some sway with the home finance official. If you are driving one of these why did you pick that CID and not one of the other 2.

Answers to anticipated questions:
1972 convertible original Big Block, 4 speed, car. No engine or transmission and has not been on the street or had a motor in over 10 years. The person I bought it from bought it without a motor or trans. I have a Tremec 5 speed kit on order and built a 370 rear end.

Thanks for all input

Jim
If it was me I would go back 454 with a 4-Speed but I'm funny like that. If you're dead set on a bunch of HP I would put that bling money into beefing up the rear suspension or you will be throwing U-Joints and twisting half shafts.
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Old Jan 13, 2018 | 08:23 PM
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Originally Posted by 72 Project
I have a Skip White 427 SBC , Motor kicks *** .. High 10 second car and can drive it daily . 3rd season on it . Not a single issue and if and when I decide to go for more power his 632 915 HP big block is going into her.

Go to his face book page he is supposed to be making a video on his shop.

His equipment is top of the line.
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Old Jan 13, 2018 | 08:33 PM
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Originally Posted by 409/409
White Performance on ebay, unless I overlooked it, has no place to ask a question or show where they are located or a phone number.
That would bother me before I'd flop down $12,000 or $14,000 or any amount!!!
Skip White Performance...... https://skipwhiteperformance.com/ (see their dyno runs on YouTube)
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Old Jan 13, 2018 | 08:38 PM
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I would go with the one set up for low idle,
off idle torque, and one that doesn't need to idle at 1k and feather the clutch.
depending on where you live, daily driving should be a pleasure not a
working effort to stop and go.
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