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Old 08-25-2003, 09:06 AM   #1
N2TRUX
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New crate motor coming from GM

This is the latest "Big Inch " motor coming from GM. It is not one of the dealer built special you see advertised. It's the real deal from GM, and it BIG... 572ci of big. WOW!



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Old 08-25-2003, 09:24 AM   #2
bigblock73
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I bet it has a "big" price tag too!! I have seen it on "Trucks"...looks awesome!!

-Jeff
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Old 08-25-2003, 09:34 AM   #3
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Isn't that what is in "Copperhead"? ANd isn't it like 720HP?
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-Best 1/4 mile: 14.51 @ 91.01 MPH
-2001 Pewter Tahoe, billet grill, Corsa Sport Cat-back, K&N FIPK SOLD!!!
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Old 08-25-2003, 09:46 AM   #4
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Yeah, it's not that new really. There are two versions coming here's the spec on the "mild" version...
572 C.I.D. - 9:1 Compression Crate Engine Technical Information


Horsepower……………………………………620 @ 5500 RPM
Torque………………………………………………650 Ft. Lbs. @ 4500 RPM
Max. Recommended RPM…………6000 RPM
Compression Ratio…………………9.6:1
Block…………………………………………………New! Sportsman Tall Deck Bowtie Gen VI
10.200" deck height
Bore……………………………………………………4.560"
Stroke………………………………………………4.375"
Crankshaft……………………………………Forged 4340 steel
Connecting Rods………………………Forged 4340 steel, H-beam style, Shot peened
Pistons……………………………………………Forged aluminum, Full floating wrist pin
Piston Rings………………………………Plasma-moly rings
Camshaft…………………………………………Hydraulic roller
Valve lift: .632" I, .632" E
Duration @ .050" 254Ί I, 264Ί E
Lifters……………………………………………Hydraulic roller tappet
Cylinder Heads…………………………Aluminum rectangular port
118cc combustion chamber
Intake Valves……………………………2.25" Stainless steel
Exhaust Valves…………………………1.88" Stainless steel
Valve Springs……………………………Dual valve springs
1.540" coil diameter
1.800" installed height
197 Lbs. seat pressure
Spring Retainers……………………Hardened chromemoly steel
Rocker Arms…………………………………Aluminum roller rockers, 1.7:1 ratio
Push Rods………………………………………High performance one piece
Intake Manifold………………………New! Aluminum tall deck single plane
4150 series carburetor
Carburetor……………………………………850cfm, mechanical secondary
Rear Main Seal…………………………New! One-piece design
Windage Tray………………………………New! Screened and louvered
Damper………………………………………………High RPM torsional damper
Distributor…………………………………H.E.I.
Ignition Timing………………………36Ί total advance
Spark Plugs…………………………………R42XLS
Fuel……………………………………………………92 Octane
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Old 08-25-2003, 09:47 AM   #5
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And heres the specs on the "race" version...
572 C.I.D. - 12:1 Compression Crate Engine Technical Information

Horsepower……………………………………720 @ 6250 RPM
Torque………………………………………………685 Ft. Lbs. @ 4500 RPM
Max. Recommended RPM…………6750 RPM
Compression Ratio…………………12:1
Block…………………………………………………New! Sportsman Tall Deck Bowtie Gen VI
10.200" deck height
Bore……………………………………………………4.560"
Stroke………………………………………………4.375"
Crankshaft……………………………………Forged 4340 steel
Connecting Rods………………………Forged 4340 steel, H-beam style, Shot peened
Pistons……………………………………………Forged aluminum
Full floating wrist pin
Piston Rings………………………………Plasma-moly rings
Camshaft…………………………………………Mechanical roller
Valve lift: .714" I, .714" E
Duration @ .050" 266Ί I, 274Ί E
Lifters……………………………………………Mechanical roller tappet
Cylinder Heads…………………………Aluminum rectangular port
118cc combustion chamber
Intake Valves……………………………2.25" Stainless steel
Exhaust Valves…………………………1.88" Stainless steel
Valve Springs……………………………Dual valve springs
1.567" coil diameter
2.050" installed height
230 Lbs. seat pressure
Spring Retainers……………………Hardened chromemoly steel
Rocker Arms…………………………………Aluminum roller rockers, 1.7:1 ratio
Push Rods………………………………………High performance one piece
Intake Manifold………………………Aluminum tall deck single plane
4500 series carburetor
Carburetor……………………………………1095cfm, mechanical secondary
Rear Main Seal…………………………New! One-piece design
Windage Tray………………………………New! Screened and louvered
Damper………………………………………………High RPM torsional damper
Distributor…………………………………Multiple spark discharge
Ignition Timing………………………36Ί total advance
Spark Plugs…………………………………R42XLS
Fuel……………………………………………………Race fuel
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Old 08-25-2003, 09:50 AM   #6
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Here's the page it's on-Sneak Preview
If you have to ask about the price, you can't afford one either...
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Old 08-25-2003, 09:55 AM   #7
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In that case, how much is it?
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Old 08-25-2003, 10:31 AM   #8
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I think it's about $13K
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-Best 1/4 mile: 14.51 @ 91.01 MPH
-2001 Pewter Tahoe, billet grill, Corsa Sport Cat-back, K&N FIPK SOLD!!!
-2004 Z-71 Extended cab with a flowmaster, BDS 6.5", 3" BL, 35x12.5x18 Trail Grapplers on Pro-Comp 18x9 wheels
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Old 08-25-2003, 01:27 PM   #9
LOHRTBT
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OH yeah!! That baby is mucho SICK!! I love it! hehe I cant wait to see someone that has one put in
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- 1986 Chevy SWB - Stock for now
- 1986 Chevy Custom SWB *Stolen 6/26/05*
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Old 08-25-2003, 03:32 PM   #10
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Dave you should put that sucker in your car.
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Old 08-25-2003, 03:39 PM   #11
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LOL YEAH RIGHT! hehe
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- 1986 Chevy SWB - Stock for now
- 1986 Chevy Custom SWB *Stolen 6/26/05*
- 1985 Chevy SWB SOLD
- 1999 T/A Some mods
www.cardomain.com/id/ramairdave

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Old 08-25-2003, 06:11 PM   #12
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They showed one the other day on TV but did not say the HP rating. I know it had a 850 carb. Price was 8495.00
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92 C1500 stepside 496 Stroker Competiton Engineering Ladder bars/QA1 coilovers. Dana 60 rear with 4.10 gear and posi. Bonspeed Palisade 20x12 in rear w/335/30/20 and 20x8.5 front w/245/40/20. 5/8 drop with Belltech springs/DJM spindles/drop shocks. WWS Progress thread http://67-72chevytrucks.com/vboard/s...d.php?t=140448
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Old 08-27-2003, 01:08 PM   #13
79BIG10
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WIth everything forged on it, it needs a blower Damn take that with the Quadzilla tranny and a 4.10 rear end I'd be loving it
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Old 08-27-2003, 01:28 PM   #14
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No way these 572's are going for $8495.00 Try at least $15k
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Old 08-27-2003, 02:31 PM   #15
phantom dually
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Im just telling you what I saw on a Jegs commercial!!
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92 C1500 stepside 496 Stroker Competiton Engineering Ladder bars/QA1 coilovers. Dana 60 rear with 4.10 gear and posi. Bonspeed Palisade 20x12 in rear w/335/30/20 and 20x8.5 front w/245/40/20. 5/8 drop with Belltech springs/DJM spindles/drop shocks. WWS Progress thread http://67-72chevytrucks.com/vboard/s...d.php?t=140448
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Old 08-27-2003, 03:14 PM   #16
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The ZZ502's go for 8500..... those 572's are 13k + $$$.
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Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive.
It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.....

Cubic inches is like Indiana Jones with a cheap pistol.
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Old 08-27-2003, 09:18 PM   #17
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How much ever it is, it is sweet. Especially the one on Trucks!!

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