ZL-1 Block - Team Camaro Tech
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post #1 of 4 (permalink) Old Dec 20th, 00, 07:58 AM Thread Starter
Join Date: Oct 2000
Posts: 1,273

I have a line on a ZL-1 block and wasn't sure of any differences in that block and a standard 427 block, aside of it being aluminum of course. If there are any differences, I would certainly like to know what they are and also the compatibility of any standard 427 internal or external parts.
Thanks, guys.
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post #2 of 4 (permalink) Old Dec 20th, 00, 08:42 AM
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Join Date: Feb 2000
Location: Central City, Ky.
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All internal parts should work. The aluminum block has extra reinforcing ribs in different locations and should have iron cylinder liners, some have bosses on the valey side of the deck for extra head bolts, otherwise the same.

'69 RS/SS396 pro street
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post #3 of 4 (permalink) Old Dec 20th, 00, 03:44 PM
Join Date: Apr 2000
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OEM ZL-1 aluminum blocks weighed 98 lb. whereas the new GM repop's weigh 110lb. per a GM article in CHP mag.

And there are the ultra-rare big bore CAN-AM aluminum blocks that are rare as hens teeth. Both with cast-iron sleeves and without. Wished I could afford one. pdq67

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post #4 of 4 (permalink) Old Dec 21st, 00, 08:20 AM Thread Starter
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Thanks guys, but it doesn't matter now anyway. Turns out the guy was just stroking me.
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