But a stock C4 with nothing more than a shift kit and converter will run in the mid-low 11's a long time! C-4's don't start getting exotic until you hit the 10's. At that point I might consider giving up that extra .2 in the quarter and build the C6. But .2 is alot of ET to give up to that Chebby in the other lane!!

And all that being said, I would put a powerglide in my car before my C6 ever finds it's way off the shop floor and back into the racecar.

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member #773
'69 mustang, 351C, 9.97 @ 133 mph 1/4, 6.27 @ 108 1/8, 1.344 60'
'70 mustang, flintstone power
'93 F150 Lightning
'99 Pro Et track champion

My Photo Page

"an object at rest tends to stay at rest until acted upon by an outside force"

The rotating mass of a C4 weighs less than a C6, therefore it takes less force to rotate the C4. That means more force is available to move the car.

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Originally posted by DidgeyTrucker:
It's all about that physics thing we learned back in high school:

Tracy

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Uh-oh

I never took physics in high school.

quote:

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Originally posted by DidgeyTrucker:
It's all about that physics thing we learned back in high school:

"an object at rest tends to stay at rest until acted upon by an outside force"

The rotating mass of a C4 weighs less than a C6, therefore it takes less force to rotate the C4. That means more force is available to move the car.

Tracy

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Where is your real-world example of why the C6 is better? Did you break a heavy-duty C4? Because the C6 WILL slow you down.

The Engineers knew what they were doing I'm sure. But you don't even know what thier goal was. It obviously wasn't balls-out performance.

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Originally posted by denny:
If I ever get the Fairlane out again I hope it will be with a Jerico as I already have one in the 'Stang.

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There ya go
I have a buddy with a Jerico in his bracket car, and I know it's faster with that trans than it would be with either auto in it.

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Originally posted by denny:
Only problem is having to use 9in tires and leaf springs to hook 600 hp. It sure would be fun to try though.

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Originally posted by kwazykat:

That does add a new twist to it. My buddy with the Jerico has a Canfield headed 408w that Kuntz said should be making about 625 hp, and he's using a 10.5 slick.

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Dang, I did it again.

I need to learn to pay better attention to what user name is on here.

It seems like you are warming up to 351w blocks. They can do anything a 351c can do and survive while they do it, with aftermarket heads anyway.

Yeah that sharing computers has screwed me up too, I've posted as Melissa a few times.

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Originally posted by steve'66:
Rob,

It seems like you are warming up to 351w blocks. They can do anything a 351c can do and survive while they do it, with aftermarket heads anyway.

SteveW

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It's not like I ever hated them. The first motor that I bouight to rebuild for my '70 was a 71 351W. But that was in 1989, and even though I was just starting out in the whole world of horsepower, I knew enough to know that it took good heads to make good horsepower, and at that time no one was making any good heads for a W. So I did what anyone else would do, I found a motor that came from the factory that had good heads and that would fit in my car, and that just happened to be a cleveland. And now, over the years, I have accumulated a vast array of parts (all which happened to be for a cleveland though).

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Originally posted by steve'66:
Is the W running alchohol?

SteveW

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We're thinking that Melissa's will run that number, but with only 12-1 compression and ported Vic Jrs. We'll see how it does. One step at a time, I'll set it up mild and let her get used to 11's for a while then step it up to the 10's. They are real good blocks! The engine builder had a chebby guy come into his shop talking **** about Fords. He had a 350 chebbie and a 351W short blok on engine stands and proceeded to educate him on the differences in the bottom ends! The W won hands down. The 350 chevy is about what a 289 would be if you enlarged it to 350 ci. It's cool that Ford had the foresight to tool a 351w block that was beefier and capable of high h.p. and 400+ ci's.