Editing Chevrolet big-block engine (section)

===ZZ572===
General Motors began offering a newly developed {{cvt|572|CID|L|1}} in 1998<ref>{{cite book |last=Freiburger |first=David |title=Hot Rod Horsepower Handbook: Big-Block Chevy |url=https://books.google.com/books?id=Y98Smxj3XREC&pg=PA72 |archive-url=https://web.archive.org/web/20130621012100/http://books.google.com/books?id=Y98Smxj3XREC&pg=PA72 |url-status=dead |archive-date=2013-06-21 |date=2006 |page=72 |publisher=Motorbooks |isbn=978-0760327838 |access-date=April 19, 2015}}</ref> to the aftermarket via its GM Performance Parts division. This engine has a bore and a stroke of {{cvt|4.56|x|4+3/8|in|1}}. This is a {{cvt|620|hp|kW|0}} and {{cvt|650|lbft|Nm|0}} version, designated ZZ572/620 Deluxe, capable of running on 92 octane pump gasoline for street applications.<ref>{{cite web |title=ZZ 572/620 Deluxe: Our Most Powerful Big-Block Street Engine |url=http://www.chevrolet.com/performance/crate-engines/big-block-zz-572-620.html |website=Chevrolet |access-date=April 19, 2015}}</ref> Another version of the same engine is available as a high compression variant, codenamed ZZ572/720R Deluxe, generating a minimum of {{cvt|720|hp|0}} on high-octane racing fuel.<ref>{{cite web |title=ZZ 572/720R: Our Baddest, Most Powerful Big-Block Engine is Ready for the Strip |url=http://www.chevrolet.com/performance/crate-engines/big-block-zz-572-720-r.html |website=Chevrolet |access-date=April 19, 2015}}</ref> The 572 is officially offered by Chevrolet for the 2022 model year COPO Camaro.<ref>{{cite web|url=https://media.chevrolet.com/media/us/en/chevrolet/home.detail.html/content/Pages/news/us/en/2021/jul/0730-copo.html|title = Chevrolet COPO Camaro Brings Back the Big Block for 2022|date = 30 July 2021}}</ref><ref>{{cite web|url=https://www.hotcars.com/the-chevy-bigblock-v8-returns-on-the-2022-copo-camaro/|title = The Chevy Big-block V8 Returns on the 2022 COPO Camaro|date = 31 July 2021}}</ref><ref>{{cite web|url=https://www.caranddriver.com/news/a37182804/2022-chevy-copo-camaro-revealed/|title=2022 Chevy COPO Camaro Revealed with 9.4-Liter, 572-Cubic-Inch V-8|date=31 July 2021}}</ref>