Even I have trouble with this one

[Michael Kasimirsky]

> Actually, I believe the original ZR1 Corvette had a big-block Chevy
> (454?) under the hood.  For those that aren't familiar, the 
> original ZR1

No, I believe the ZR1 was only the late-model DOHC motor version.

The one you're thinking of was the ZL1, which was EXTREMELY
rare and came with a 380hp all-aluminum 454 big block in 1969.  
But the 1969 LS6 454 made 460hp, you say?  Well, the ZL1 made
380hp at 3800rpm or so (as it was rated), but it also made 580hp
at 5800rpm or something like that, but to discourage people from 
ordering it (as if it's $5000 price tag wasn't enough) the package 
was intentionally rated below it's power peak.  The ZL1 engine also 
weighed less than the 327 base engine. I believe only 2 or 3 were built.

In case you can't guess, the ZL1 is the only vintage Corvette that
I have any real interest in.  :-)

Michael Kasimirsky            1990 Yamaha FZR400 Superbike Racer
Loki Motorsports              1993 Kawasaki ZX1100D1 Streetbike Rider
FASTTRAX & WERA Novice #22  Sponsored by Loki Motorsports, Bridgestone, 
mtk at tmc.astm.cmri.cmu.edu        Street & Competition, and AGV.