From the pages of Pace Performance catalog, received earlier this week...pleas one there are no type errors on my part:

89961499: Ram Jet ZL1 (Limited Edition)
Getting a hold of one of these may be more difficult than hitting your state lottery. GM Performance Parts is proud to bring back a legend, if only for a limited time. The Ram Jet ZL 1 is the '69 ZL 1 of the new millenium, with its revised aluminum block, a solid roller cam, large oval port aluminum cylinder heads, and Ram Jet fuel injection system...that's right, Fuel Injection. The Ram Jet ZL1 is '454 cid with street friendly 10.2:1 compression ratio that will idle all day long, unlike its predecessor of the late 60's. If you want a Ram Jet AL1, get in line now. GM Performance Parts will be introducing a very limited 200 of these all-aluminum Rat Motors for sale on the open market and I would be willing to bet Jay Leno already has his eye on one...make that 199!
Pace has 1 of each of the following limited production zl1 serial numbers.

Serial number 108......................$16,595.95
Serial number 109......................$16,595.95
Serial number 110......................$16,595.95
Serial number 158......................$16,595.95
Serial number 159......................$16,595.95

And YES Pace has a #69, and the first $23,669.69 takes this one of a kind ZL1

ENGINE SPECIFICATIONS

Horsepower: 510@55750 rpm
Torque: 493 @4250 rpm
Compression Ratio: 10.2:1
Block: Aluminum (12370858)
Crankshaft: Forged Steel
Heads: Aluminum (1263399)
Valve size: I-2.25" / E-1.88"
Cam Lift: I-.640" / E-.598"
Duration @ .050": I-236 / E-232
Intake: F/I (12499249)

Yep, that's the RPM listed in teh catalog, one screamin' machine @55750...

 

Lemme get my checkbook, oh wait, I better go get two more part time jobs first. And a new wife.

 

Sure doesn't seem like a bargain to me. That's only 18 ft lbs more torque than I have now. $16,595 for 493 ft lbs versus 475 ft lbs for $1,220.70.

 

502 has more torque for less money. It makes no sense.

 

Probably weighs less than a traditional SB. I think the bare ZL-1 block weighs 110lb.

 

Hmmm sounds like an aweful lot of money

 

Isn't this really really old news? Isn't this is the run of 200 engines they came out with 1 (or2?) years ago? The list price was I think $25k, so these are the remaining engines that GM couldn't sell at the ridiculous list price. I think Hot Rod magazine put one of these engines in their built from scratch Camaro.

 

Umm, looks like the price is starting to come down. I gave buying this one a thought,back when they first came out,.... for about a nano sec. and then opted for the 502 RamJet. At the time, it was priced up there where serial #69 is today and the 502 RJ was about 1/3 the cost. Very similar engines except for the short block.

RamJet 502 specs:

Displacement- 502 cubic inches
Bore x stroke - 4.47"x4"
Compression - 9.6:1
Block - cast iron 4 bolt main
Cyl Heads - same as ZL-1 Cast alumin, oval port
Valve diam I/E - 2.25"/1,88"
Chamber vol - 110cc
Crank - forged steel
Rods - Forged steel 7/16" bolts
pistons - forged aluminum
Cam - Hydraulic roller tappet
lift - .527" I, .544" E
duration - 224deg I, 234deg E @ .050 tappet lift
centerline 104deg ATDC intake, 109deg BTDC exhaust
rocker arm ratio - 1.7: stamped steel
Oil pan - 6 quart, I changed to Moroso 7 qt. wing design to gain ground clearance.

Max RPM as limited by MEFI ECU - 5800rpm.

Knowing what I know now, I would have been very disapointed if I paid $23k for an engine and it had that POS MEFI ECU Don't get me wrong, I love the RamJet, but sooner or later the MEFI will hit the trash.

Bullshark

P.S. And the ZL-1 still wouldn't fit under my L-88 hood

 

yep, found an old thread from July 2003 which even includes that pathetic advertising line, "more difficult than hitting your state lottery"... yeh, right! Just takes some $$$$, and less now that the engines are growing old on dealers' shelves.






http://forums.corvetteforum.com/show...um_id=3&arch=1

 

At least that article has the H.P. listed at the correct RPM...