ZL-1 City

[Jerry@CHP]

Andy,

Will post 302 dyno sheet data when I get home. I am out of town now on a Camaro inspection trip. I do remember that the 302 in my 67 Z28 did pull strong numbers up to 8000 or 8200rpm. Torque was in the low 300 range but I'll get the data for you. One thing that I have learned over the past 10-15 years is changing the lobe center on these engines makes a big difference in hp. Remember, in Stock Eliminator we have a glass ceiling and that's why you tweek everything that you can. After many years of research, it pays off. That is why we have built a big following for engine rebuilding and restoration. All of our customer base who we have done engines for have a big smile on their face!

I'll also post the dyno sheet on another 396-375 hp L78 engine that I just finished last week. All stock including a 3863143 camshaft with my little tricks paid off on this one too. Made 446 peak hp at like 6100 rpm. More than many get out of an L72 engine. And this was done on Bub's dyno which is on the conservative side.

More later,

Jerry

[Chevy454]

[ QUOTE ]
I'll also post the dyno sheet on another 396-375 hp L78 engine that I just finished last week. All stock including a 3863143 camshaft with my little tricks paid off on this one too. Made 446 peak hp at like 6100 rpm. More than many get out of an L72 engine. And this was done on Bub's dyno which is on the conservative side.

[/ QUOTE ]
Jerry: on these dyno pulls, what exhaust are you running? Headers or manifolds??

[Jerry@CHP]

Headers with mufflers.

[Andy]

[ QUOTE ]
Andy,

Will post 302 dyno sheet data when I get home. I am out of town now on a Camaro inspection trip. I do remember that the 302 in my 67 Z28 did pull strong numbers up to 8000 or 8200rpm. Torque was in the low 300 range but I'll get the data for you. One thing that I have learned over the past 10-15 years is changing the lobe center on these engines makes a big difference in hp. Remember, in Stock Eliminator we have a glass ceiling and that's why you tweek everything that you can. After many years of research, it pays off. That is why we have built a big following for engine rebuilding and restoration. All of our customer base who we have done engines for have a big smile on their face!

I'll also post the dyno sheet on another 396-375 hp L78 engine that I just finished last week. All stock including a 3863143 camshaft with my little tricks paid off on this one too. Made 446 peak hp at like 6100 rpm. More than many get out of an L72 engine. And this was done on Bub's dyno which is on the conservative side.

More later,

Jerry

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Thanks for the info. I look foward to seeing the sheets. I was considering a 302 build for my 67 Camaro, because I love high winding small blocks, but I decided on a 406 because I like torque an the ability to fry the tires from a roll too. My motor ended up making 505 hp and 506 ft lbs @ 5200/5300 respectively with a hydrualic flat tappet and a set of 195 AFRs.



View Video on FQuick

[Jerry@CHP]

Andy,

Here is sheet on the bone stock L78 that we did last week. First column is the torque and second is HP. I will dig for my 302 dyno sheets this evening after I get Camaro reports written.

Jerry

[Andy]

Thats impressive for a stock cam/heads. Making power all the way to 6200.

[iluv69s]

[ QUOTE ]
This is something you won't see everyday. Two original ZL-1 engines sitting next to one another. We brought both back from the dead. Cylinder explosions, cracks, etc. One is out of ZL-1 #17 and the other is out of car #34. Both made stellar hp on the dyno in bone stock condition w/180 camshafts. Used some of my Stock Eliminator tricks and different ring combinations. 543hp on one and 558hp on the other. Made about 10 pulls on each one. Like to see what I could make with some mods?? The 302 in my new 67 Z28 race car makes 475hp. I'll have to post dyno sheets. Both 427s made just under 500lb ft of torque.

Enjoy,

Jerry

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Boy, that one ZL-1 motor looks familiar !! Thanks alot Jerry for the great work..not just on this motor, but on all the resto. work and general help you have supplied me with over the last few years !! Max