427 SBF

DHR Darren said:
Is the fucker lined up dot to dot and running yet?
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images
 
Steve439 said:
I've been eyeing those!

They definitely ain't cheap!
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So far I would say they are worth the money. I bought two at first so I could move cars with spools easier. Once I saw how well they worked I went back and bought another pair.

The only downside is storing them when not in use. I may buy the rack they sell for them.
 
Mike Beck said:
Booooooo........... I LOVE when there is a damn good reason to buy another tool!

I just bought a full set of wheel dollies from Horrible Freight. Man, these things are killer! Weren't cheap, but they work perfect! Slide the legs to straddle the tire, flick a lever, start pumping on the arm with your foot. Legs come together and lift the wire up off the ground. I can push a car around by myself now with no effort! Sometimes you can get good stuff from that place.
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Been looking at them myself for the Firebird. You like em?
 
More fun with excel.

Overlap:
.010" lift is 80 degrees
.050" lift is 23 degrees
Advertised is 76 degrees

Screenshot 2025-06-30 10.06.55 AM.png
 
Looks to be 2-4 degrees longer on the closing sides. :cool:

What's the overlap at .006?
 
The graph also shows exactly where the lobes are on the base circle. Now that I see it on a graph, I'm less worried about where in the rotation to set valve lash. I thought as soon as you saw exhaust move you had to set intake and there was no room for error.

I've also set intake and exhaust at the same time when a particular cylinder is at TDC of its compression stroke. Turn engine over 90 degrees and follow the firing order. Less idiot proof but also acceptable
 
89 Fox 427 said:
The graph also shows exactly where the lobes are on the base circle. Now that I see it on a graph, I'm less worried about where in the rotation to set valve lash. I thought as soon as you saw exhaust move you had to set intake and there was no room for error.

I've also set intake and exhaust at the same time when a particular cylinder is at TDC of its compression stroke. Turn engine over 90 degrees and follow the firing order. Less idiot proof but also acceptable
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That method is highly dependent on the cam. Small cams, that method is fine, but at some point it is no longer a good way to do it. Try it, then do it the correct way, and see if you're ok.
 
Mike Beck said:
That method is highly dependent on the cam. Small cams, that method is fine, but at some point it is no longer a good way to do it. Try it, then do it the correct way, and see if you're ok.
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I had never heard of that method until mitch and bangr were helping and the intake valve was hanging open with whatever Chevy method those two were using. They called race car Ronnie and he prefers TDC method for some reason
 
Here's a video of my car long ago (light blue), notice the guy with the camera follows my car for some reason, thats because a video doesn't capture the whole experience. That configuration of the car had a 410 detuned Ford Windsor (351 based) sprint car motor (very early 2000s) in it, and those little bulges along the side pipe that look like they might be mufflers were actually meant for midgets with sound limits at the track. The camera guy turned his head because it sounded bitchin and had a bark.
Make your car bark


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Follow up: a friend verifies that video once had the full motor sounds (thats the way I remember it) and they have been erased or modified...??? yt hates old white guy fun stuff :(
 
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Mike Beck said:
Booooooo........... I LOVE when there is a damn good reason to buy another tool!

I just bought a full set of wheel dollies from Horrible Freight. Man, these things are killer! Weren't cheap, but they work perfect! Slide the legs to straddle the tire, flick a lever, start pumping on the arm with your foot. Legs come together and lift the wire up off the ground. I can push a car around by myself now with no effort! Sometimes you can get good stuff from that place.
Click to expand...

I was going to get a set of those for when my wife pulls in all the way to the wall ... which is every time.
 
This trans gearing isn't ideal, a 26in bias ply might let me cross the stripe at a higher rpm while simultaneously helping me blow the tires off
 
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