how many zl1 motors were made

**PeteLeathersac** · #1 02-28-2006, 11:22 PM

Although helpful Les, Preve's listing above shows only F-body suffix ZL1 motors and doesn't appear to include the Vette ZL1's nor any supplied to McLaren and other Can-Am teams etc. . Isn't there something about 5 or 7 'Vette ZL1 motors being originally produced then some returned? . Can the Can-Am motors can be referred to as a ZLI since they're a different displacement? . Are all the Winters Alum. blocks the same casting number? . Perhaps the question could be....what other GM-Winters Alum. block motors were released to add to these known F-car engines resulting in what Grand Total? ~ Pete

71-LS6 · #2 03-04-2006, 04:22 PM

Can someone please point out the EXTERNAL differences, between the new block and the old block? I want to do a ZL1 clone for FS/FAST racing, and I've about given up on finding an original block to work with.

Kim_Howie · #3 03-04-2006, 10:52 PM

The new block has thicker deck and main bearing area. Good for 900 HP.

What I have been told is anything over 800HP on the org blocks BOOM They won't hold up.

**TXSS** · #4 03-07-2006, 07:49 AM

Kim

That's a good question. I can't remember where I put the paper work. I'll have to find it and let you know. Is there some significance to the number?

Rick

Kim_Howie · #5 03-07-2006, 06:14 PM

Rick, I bought mine 5 years ago and I was wondering what # yours was to come up with how many had been sold.

Kim_Howie · #6 03-07-2006, 06:18 PM

Dah Steve I didn't read your question right. The block outside looks very close to org. blocks. There is no winters flake on the new one also the grain look of the block is different. Hopes this helps.

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