Old Crane 266/210 hy-cam.

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Old Crane 266/210 hy-cam.

Post by pdq67 »

266/210, 110/105(?), .440" lift.

How did it run in these engines?

STOCK 220hp/283, stock 307(??), 300hp/327, 295hp/350, 265hp/400...

I'm thinking a pretty-much stock CR in all of them, some mild bowel blending is all, along with an old SP-2P and say an old, tuned 1850 Holley 600 cfm carb,, small, 4 tube, long tube headers for max low rpm T.

How far off am I?? Trying to think about a very mild tow-truck engine here is all... Or something for a, "long-roof!!'...

I was going to say, an old 390 Holley 4-barrel, but my good pair got stolen years ago.....

Or would I be better off with a, "Performer" cam, the old generic 204/214, 112/108(?), .420"/.442" lift hy-cam?

Read CHEAP here!!!

OR would I be better off just staying with Chevy's great old -929 STOCK cam??? But keep the CR up like it was when they used it in almost everything as their base engine cam?

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Re: Old Crane 266/210 hy-cam.

Post by F-BIRD'88 »

This cam really likes a higher cr. like 9:1 +++.. If the cr of your engine is lower, advance the cam some more.
Or fix the cr with a small chamber (home ported) head swap. eg #4416, #601, #059 vortec ,#081 (tpi)
And steel shim .015" head gaskets

On a 283-307- or 305 it likes a higher than stock converter and some gearing too. Of course more is better.
10:1 cr and a 3000 stall and 4.10's is just right
off the shelf 10" "3500 stall" rated converter is not too much. Wants perf gears too.
Forget the SP2P, a performer or performer RPM hirise is BETTER.
Moderate head porting and 1.94 valves works with this cam.. Can use higher ratio rockers for more lift with ported heads.
Towing will want gears and more than 8.5:1.
283's and 307's (especially w low 8.5:1 cr) are easy to over cam.

Just right for mild perf high cr 327 and 350
Last edited by F-BIRD'88 on Tue Oct 13, 2020 3:41 pm, edited 1 time in total.
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Re: Old Crane 266/210 hy-cam.

Post by F-BIRD'88 »

If you were going to do a complete Camaro/CorvetteTPI efi induction system swap onto any of these motors with a cr between 9:1/10.5:1 cr, this cam is just right.
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Re: Old Crane 266/210 hy-cam.

Post by F-BIRD'88 »

Mild street 144 blower cam on small cid w/low cr.
Towing with 144 blower.
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Re: Old Crane 266/210 hy-cam.

Post by pdq67 »

How does the 266/210 compare to the old 274H06?

I know it is like comparing apples to oranges at 266/210 vs 274/218..... Say even drop the 266 back to 106 like the 274H06.

But for MILD little engines up to the 350 and maybe even a stock 400...

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Re: Old Crane 266/210 hy-cam.

Post by F-BIRD'88 »

The274 cam is bigger'er , 8 degrees bigger duration.
16 degrees more overlap. Will make more top end horsepower especially in the larger cid engines.
Wants compression rpm and gears too.
rougher idle. If more is better, it is more.
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Re: Old Crane 266/210 hy-cam.

Post by pdq67 »

Thanks guys for putting up with me!

Now, about the old, "Performer", hy-cam

278/204/288/214, 112/107, .420"/.442".....

How does it do in these very mild engines I have been asking about?

And I know that it basically is just step up from the great old stock, -929 cam.

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Re: Old Crane 266/210 hy-cam.

Post by 68maliblue »

The old Comp CS252AH-10 would be good in a mild 283. 206/212 @ .050" on a 110LSA. I put a CS260-AH8 212/218 on 108 LSA in a 307 with Vortec Heads and 9:1 compression and it runs strong for what it is.
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Re: Old Crane 266/210 hy-cam.

Post by rustbucket79 »

pdq67 wrote: Wed Oct 14, 2020 12:06 pm Thanks guys for putting up with me!

Now, about the old, "Performer", hy-cam

278/204/288/214, 112/107, .420"/.442".....

How does it do in these very mild engines I have been asking about?

And I know that it basically is just step up from the great old stock, -929 cam.

pdq67

The turd of all cams in a mild 350, I can only imagine how horrible it would be in a smaller engine.
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Re: Old Crane 266/210 hy-cam.

Post by docwilcar »

I ran the comp 252 206 206 110 435 lift in a 87 firebird and it had great low and midrange. Had a nice throaty idle to it and no problems with the ecm.
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Re: Old Crane 266/210 hy-cam.

Post by Walter R. Malik »

The Crane camshaft we used in the 80's for 305 pick-up, trailer towing engines was 11-41-12. (grind 12353915)
267/282@ .006" - 194/204@.050" - 104 separation - .427"/.423" valve lift with 1.6/1 intake rocker arms & 1.5/1 exhaust rocker arms.

Good mileage and good torque for pulling that trailer down the highway with only a 305 engine on regular gas.
I remember distinctly because we used it in at least 20 engines.

It is probably not available any more but, I am sure someone else could grind something very similar.
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Re: Old Crane 266/210 hy-cam.

Post by CamKing »

Walter R. Malik wrote: Wed Feb 02, 2022 11:50 am It is probably not available any more but, I am sure someone else could grind something very similar.
No one in their right mind, would want to.
That design was out dated before I was born.
Even going to our 1980's designs would be a night and day difference.

You could make a lot more power everywhere, without changing the RPM band, by just going to more modern lobe designs, decreasing seat duration, and widening the LSA.

This would have the exact same RPM band, a lot more power everywhere, more vacuum, and better mileage.
260/268 @.006"
204/212 @.050"
.295"/.300" Lobe Lift
.443"/.450" Valve Lift w/1.5 rockers
106 ICL
114 ECL
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Re: Old Crane 266/210 hy-cam.

Post by Walter R. Malik »

CamKing wrote: Wed Feb 02, 2022 1:32 pm
Walter R. Malik wrote: Wed Feb 02, 2022 11:50 am It is probably not available any more but, I am sure someone else could grind something very similar.
No one in their right mind, would want to.
That design was out dated before I was born.
Even going to our 1980's designs would be a night and day difference.

You could make a lot more power everywhere, without changing the RPM band, by just going to more modern lobe designs, decreasing seat duration, and widening the LSA.

This would have the exact same RPM band, a lot more power everywhere, more vacuum, and better mileage.
260/268 @.006"
204/212 @.050"
.295"/.300" Lobe Lift
.443"/.450" Valve Lift w/1.5 rockers
106 ICL
114 ECL
Something more modern of that type would probably work better.
However, we did try using a 252H Comp Cams back then and the power and mileage were about the same but, detonation was an issue pulling a car trailer across country on regular gas, especially up-hill ... I think the seat duration and amount of valve overlap might have been what helped that problem.
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Re: Old Crane 266/210 hy-cam.

Post by CamKing »

Walter R. Malik wrote: Wed Feb 02, 2022 11:30 pm
Something more modern of that type would probably work better.
However, we did try using a 252H Comp Cams back then and the power and mileage were about the same but, detonation was an issue pulling a car trailer across country on regular gas, especially up-hill ... I think the seat duration and amount of valve overlap might have been what helped that problem.
The cam I recommended would have the same intake closing point, so chance of detonation would be the same.
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Re: Old Crane 266/210 hy-cam.

Post by Walter R. Malik »

CamKing wrote: Thu Feb 03, 2022 10:01 am
Walter R. Malik wrote: Wed Feb 02, 2022 11:30 pm
Something more modern of that type would probably work better.
However, we did try using a 252H Comp Cams back then and the power and mileage were about the same but, detonation was an issue pulling a car trailer across country on regular gas, especially up-hill ... I think the seat duration and amount of valve overlap might have been what helped that problem.
The cam I recommended would have the same intake closing point, so chance of detonation would be the same.
Overlap and internal EGR matters, especially at part throttle; (where high manifold vacuum is present).
Your recommendation may have worked fine however, trying and actually using it with that load, is the only way to know for certain.

Even the exhaust system being used would make some difference.
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