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#1
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I doubt any production ZL1 engine got near 575 hp. We worked with Bill Porterfield back in the '90s on a ZL1 dyno comparison. With a good tune up, open headers, no AIR pump, air cleaner or alternator it did 523 hp.
http://www.camaros.org/copo.shtml Camaro High Performance has rebuilt several. With racing oil and modern rings, they see 550+hp.
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Learning more and more about less and less... |
#2
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Last edited by Flying Undertaker; 05-07-2020 at 11:23 PM. Reason: addition at bottom |
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Arrowsmith (05-08-2020), EZ Nova (05-08-2020) |
#3
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I looked at my ZL1 dyno sheet, @ 6700 I was at 785.1 Hp but it should have been higher. And you "probably" left 50 or so Hp on the table with you deal using the GM piston design and not pulling to 73/7500 range. Modern piston with 1/16 rings or better rings and not the 5/16 would have picked it up nicely too. THEN one can look at the heads/valves and see what "could" be found there? I don't know what you did with your stuff, like better modern valve, back cut and valve job, but there is POWER there too.
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'58 Apache pick up restomodding with twin turbo 522 '78 Z28 4sp being restored '78 Z28 32,000 survivor, Og Yellow paint, AC. '70 W30 convert TRIBUTE '70 CANADIAN Nova SS396 L78 Pro Street '69 CANADIAN Nova SS 396/350 hp '67 CANADIAN Nova SS 427 10 sec. driver '66 CANADIAN Nova SS Race Car '69 FIREBIRD Tubbed Racecar '61 CANADIAN Pontiac Bubble top 409+/4sp (SOLD) '31 ALL STEEL Chevy P.U. GONE (EX-WIFES NOW) |
#4
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headwork, pocket porting, etc., a bigger cam and a holley dominator! Don. |
#5
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#6
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Very cool!!
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Dave Dykstra 1968 Camaro Palomino Ivory/Ivy Gold interior -Delivered to Courtesy Chevrolet, Los Angeles, CA 2013 Corvette Grand Sport 60th Anniversary Edition Arctic White/Diamond Blue interior -Delivered to Bill Jacobs Chevrolet, Joliet, IL NCRS#66003 Speed has never killed anyone. Suddenly becoming stationary, that’s what gets you. – Jeremy Clarkson. Dykstra Motorsports |
#7
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430
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#8
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Farmer
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The Following 3 Users Say Thank You to Carleen For This Useful Post: | ||
#9
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1968 EXP 0-326711 430 Can Am
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#10
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Anyone remember the 69 nova with the can-am engine in it at mecum harrisburg a few years ago. Supposedly had yenko documentation or connection with yenko.
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