One of the things we changed about the aluminum head was to move the rocker stand bolt closest to the intake manifold farther from the existing lower row.That left room to move the rocker shaft father from the valve making rocker ratios above 1.60:1 possible. This new rocker is longer from the roller to the shaft so it can't be used on factory heads.We just got our first set of samples of the new rockers
Modern 1.70:1 rocker ratio similar to all Ford V8 engines (except SBF) since 1958
With so many of the popular cam grinds being low lift designs this will put nearly all of them in the .450-.500" lift range.
Price has still to be determined.


http://ford-y-block.com 

20 miles east of San Diego, 20 miles north of Mexico

Darn John are you following in the steps of Edelbrock? Of course I mean Vic not the new kid. How many other secret developments do you have going? Should I wait a couple of years and save up for the all new aluminum 1000hp street gas Y-Block? Then I could just buy a Mummert crate enging and be done. Chuck

Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.

MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire

Chuck, yeah I still have a few ideas in the works. Finding a good foundry that can do old school patterns has been a challenge. Will post them here as they get done to keep you guys on the cutting edge of vintage tech

http://ford-y-block.com 

20 miles east of San Diego, 20 miles north of Mexico

Think I heard that somewhere else.

Frank/Rebop

Bristol, In ( by Elkhart) 

Frank, is there some "I told you so" in that comment?

http://ford-y-block.com 

20 miles east of San Diego, 20 miles north of Mexico

Naw! I'm sure you told me that! I'm really glad you found a reliable source though, wish i coulda!

Frank/Rebop

Bristol, In ( by Elkhart) 

Put our new rockers to the test this weekend and was really happy with them.

The basic layout was to accomplish a few things.
1. Get more pushrod clearance
2. Add lift to many of the cam profiles we currently sell.
3. Keep base circle size up. Nose radius also improves
(Simply put being able to run smoother profiles. )
They assembled quickly using springs and shims. Of course they have their own stands as the shaft center is moved toward the intake manifold. We'll be running them through the next few races and inspecting them.
For now they are doing just what they should and I'm good with that.


http://ford-y-block.com 

20 miles east of San Diego, 20 miles north of Mexico

Investment casting ?

Frank/Rebop

Bristol, In ( by Elkhart) 

Frank, the rockers are 2024 billet aluminum, all CNC machined.The 1.7 ratio will take even a little E4 Iskenderian cam to .476 lift.

http://ford-y-block.com 

20 miles east of San Diego, 20 miles north of Mexico

Very pretty. Too bad i can't convince the tech inspectors at the Pure stock races that F codes came with aluminum heads and roller rockers. Probably be a tough sell!

Frank/Rebop

Bristol, In ( by Elkhart)