[exitspeed]

Originally Posted by slider2828

Yeah but the ZL1 is not a new designation is what I am saying. The ZL1 was a factory option in 69 with all aluminum head etc etc and a 427 engine that was built specificaly for street/drag... Basically a NHRA dragster that had a factory street warranty:

RS: 37,773
SS: 33,980
Z-28: 19,014

Engines:
250 I6 155bhp @ 4200rpm, 235lb-ft @ 1600rpm.
Z28: 302 V8 290bhp @ 5800rpm, 290lb-ft @ 4200rpm.
307 V8 200bhp @ 4600rpm, 300lb-ft @ 2400rpm.
327 V8 210bhp.
327 V8 275bhp.
350 LM1 V8 255bhp.
(SS350) 350 V8 300bhp @ 4800rpm, 380lb-ft @ 3200rpm.
(SS396) 396 V8 325bhp @ 4800rpm, 410lb-ft @ 3200rpm.
(SS396) 396 V8 350bhp @ 5200rpm, 415lb-ft @ 3200rpm.
(SS396) 396 V8 375bhp @ 5600rpm, 415lb-ft @ 3600rpm.
ZL1(COPO 9561) 427 V8 425bhp @ 5600rpm, 460lb-ft @ 4000rpm.
ZL1(COPO 9560) 427 V8 430bhp @ 5200rpm, 450lb-ft @ 4400rpm.

Performance:
(Z-28) 302/290bhp: 0-60 in 7.4 sec, 1/4 mile in 15.12 sec @ 94.8mph.
(SS396) 396/375bhp: 0-60 in 6.8 sec, 1/4 mile in 14.7 sec @ 98.7mph.
ZL1(COPO 9561) 427/425bhp: 0-60 in 5.4 sec, 1/4 mile in 13.5 sec @ 102mph.
ZL1(COPO 9560) 427/430bhp: 0-60 in 5.3 sec, 1/4 mile in 13.16 sec @ 110 mph.

My point was that there won't be a Z28. Everyone thought it was going to be called a Z28 but they went with the ZL1 moniker instead.