ZZ572 Crate Engine

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07-05-2003, 09:09 PM

dckrafft

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ZZ572 Crate Engine

Has anyone heard why these engines are not available yet?

07-05-2003, 11:25 PM

obnoxus

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Hmmm,, its in the catalog,,,, where did you here it wasnt?

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07-06-2003, 08:24 PM

Vinny P

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I made a few inquires on this motor a short time ago. I was told that it would not be available until around October.

07-07-2003, 01:22 PM

RumRunner

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GM is doing there final durability testing right now. From what I've heard they should be available within the next two to three months.

07-07-2003, 02:22 PM

mr_velocity

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What are the specs on the engine?

07-07-2003, 04:44 PM

Croozin2

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572 Crate Motor Specs

According to Scoggin-Dickey Parts Center, they are "soon to be released" and "call for part number and price". They do list the specs though. There are 2 versions;

ZZ572/620
Tall Deck Sportsman Bow-Tie Gen VI Block
9.5:1
GM forged 4340 4.375" crank
Aluminum Rectangle 118cc heads 2.25/1.88
Camshaft: 254/264 @ .050" .632" lift
Single plane high rise intake (doesn't give brand but looks like a victor)
Holley 4150 850cfm
650 ft/lbs @ 4500
620 Hp @ 5500

ZZ572/720R (R being for Race)
Same block, crank, heads and intake
12:1 Compression
Camshaft: 266/274 @ .050" .714" lift
Holley 4500 1095cfm Dominator
685 ft/lbs @ 4500
720 hp @ 6250

07-07-2003, 05:29 PM

dckrafft

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The 620 horsepower short block looks like it might work just fine in marine application. A 572 with 9.5 to 1 compression, brand new and all assembled. I will just have to wait and see what the price is.