Z11 427 W Blk or L88 427 which would pull ahead - Hot Rod Forum : Hotrodders Bulletin Board
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Old 03-26-2008, 03:06 PM
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Z11 427 W Blk or L88 427 which would pull ahead

Some of us were sitting around talking about Chevy big blks from the 60�s. We decided that the two most formidable big blks from the 60�s as the factory produced them were the Z11 427 W Blk and the L88 427. The discussion continued in regards to which one would be the strongest in the quarter mile given both engines were stock and the cars were the same. Some thought that because the L88 was newer technology it would pull ahead. Others said that the Z11 is a brute and would pull ahead. What do you think?

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Old 03-26-2008, 03:12 PM
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I think that the lighter reciprocating assembly and better breathing of the L-88 would come out ahead.

tom
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Old 03-26-2008, 03:18 PM
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What about the ZL1?
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Old 03-26-2008, 03:39 PM
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Z11 427 W Blk or L88 427 which would pull ahead

We actually let the ZL 1 slip by our conversation. There were actually more ZL 1 engines built than Z11's. It would appear the ZL 1 would take the trophy. Do we still think the L88 would out perform the Z11?
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Old 03-26-2008, 06:35 PM
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Even despite the 13.5 to 1 compression ratio of the Z11 I would think the L88 would come out on top. The 12-12.5 to 1 L88's heads would offset any compression ratio difference, even with the aluminum factored into the equation...

W engines looked cool, but performance-wise the gen2 had the edge IMO.
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