Crane adjustable ratio rockers?

shoedoos · Post by **shoedoos** » Mon Jul 13, 2020 6:06 am

https://huntington.craigslist.org/pts/d ... 42049.html

Never seen a set of these before.....

Bob Hollinshead · Post by **Bob Hollinshead** » Mon Jul 13, 2020 7:03 am

Those look cool, they look like they were never used too.

pdq67 · Post by **pdq67** » Mon Jul 13, 2020 11:27 am

How old is this what looks to be NOS adjustable rockers???

pdq67

Ericnova · Post by **Ericnova** » Mon Jul 13, 2020 11:41 am

pdq67 wrote: ↑Mon Jul 13, 2020 11:27 am How old is this what looks to be NOS adjustable rockers???

pdq67

Late 1980's to maybe 1993-94 if memory doesn't fail me., but could have been 5 years earlier than that. Obviously, they didn't catch on in the market.

BOOT · Post by **BOOT** » Mon Jul 13, 2020 12:11 pm

Didn't someone bring these up not long ago?

piston guy · Post by **piston guy** » Mon Jul 13, 2020 12:58 pm

IIRC they broke out on the pushrod end.

Post by **CamKing** » Mon Jul 13, 2020 1:23 pm

I have a much better design for an adjustable ratio rocker. It's simpler, more sturdy, and easier to use. The reason we don't make them, there's no market for them.

stealth · Post by **stealth** » Mon Jul 13, 2020 1:31 pm

Whomever wacked that huge scallop out of these ruined them for sure....

interesting that they have a radius foot and no roller...

Post by **CamKing** » Mon Jul 13, 2020 4:03 pm

CamKing wrote: ↑Mon Jul 13, 2020 1:23 pm I have a much better design for an adjustable ratio rocker. It's simpler, more sturdy, and easier to use. The reason we don't make them, there's no market for them.

Can anyone think of a market for an adjustable ratio, stud mounted rocker arm ?

ozyfordman · Post by **ozyfordman** » Mon Jul 13, 2020 5:58 pm

Could be useful for running a flat tapper cam in. My ch easier than changing valve springs in the car.

Post by **GARY C** » Mon Jul 13, 2020 6:38 pm

CamKing wrote: ↑Mon Jul 13, 2020 4:03 pm
CamKing wrote: ↑Mon Jul 13, 2020 1:23 pm I have a much better design for an adjustable ratio rocker. It's simpler, more sturdy, and easier to use. The reason we don't make them, there's no market for them.
Can anyone think of a market for an adjustable ratio, stud mounted rocker arm ?

It seems like those would be good for shops that do dyno testing/R&D.

tenxal · Post by **tenxal** » Mon Jul 13, 2020 7:09 pm

CamKing wrote: ↑Mon Jul 13, 2020 4:03 pmCan anyone think of a market for an adjustable ratio, stud mounted rocker arm ?

Absolutely!

What increments would be possible with your design?

rebelyell · Post by **rebelyell** » Mon Jul 13, 2020 7:45 pm

No one else noticed yet?

Those adjustable-ratio crane aluminum roller rockers HAVE NO ROLLER TIP; have a steel slider instead.

dfarr67 · Post by **dfarr67** » Mon Jul 13, 2020 7:54 pm

SBC, SBF 7/16, 1:5, 1:6- I would have bought a set.

novadude · Post by **novadude** » Tue Jul 14, 2020 8:58 am

rebelyell wrote: ↑Mon Jul 13, 2020 7:45 pm No one else noticed yet?

Those adjustable-ratio crane aluminum roller rockers HAVE NO ROLLER TIP; have a steel slider instead.

I kind of like that feature... seems like it would be lighter than a roller wheel, and less moving parts to break.

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