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Beehive valve spring

Moderator: Mod Squad

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worken2much
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Joined: Sat Jan 31, 2004 9:01 pm

Beehive valve spring

Post #1 by worken2much » Tue Dec 29, 2015 9:44 am

Just an FYI. I just installed a set of Comp Cams beehive valve springs. #26995. They are a drop in fit with Ford length valves of 1.7" installed height. They sit nicely on the head without machining and it looks to me like the Ford valve seal will work nicely as well. The appropriate Comp retainer will be needed, available in steel or titanium. Specs are 280#/inch, 1.06 coil bind, 137# @ 1.7", 305# @ 1.1". Shims are available if needed.

I paid $230 for 12 springs, 12 steel retainers & freight. Ok buy I thought considering no machine work involved & ability to use stock umbrella seal.

Is there a specific tool to use when installing beehive springs? I got it done but was a miserable bitch of a job.

Worken2much
Rule #1. Six Cylinder Racers Have Longer Cranks.
Rule #2. Unless your given name is Richard...don't be a dick.

Sick6Turbo
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Posts: 78
Joined: Sat Dec 19, 2015 12:53 pm
Location: Almond, Wi.

Re: Beehive valve spring

Post #2 by Sick6Turbo » Tue Dec 29, 2015 11:42 am

I use a stock 300 rocker with a notch ground in tip area to handle my Isky 7005-12 duals. Works slick and the price is right! Especially in a truck where #6 cylinder is tucked under the cowl and the upright tools won't work.

Glad to see the beehive kit works good. Had considered it but price won out with the duals fitting the stock retainer and head so well. I like the fact that I can remove the inner spring for cam break ins, but the stems seals do become tricky. I also like that if I break a spring with the duals, the inner spring may save the engine.

All in all, the beehive kit looks like the best drop in and go solution.
Dale
79 F-100 turbocharged 300 rear mount 20 psi
Stock EFI bottom end, mild port carb head
12.44@106 1/4 mile in 2015

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THE FRENCHTOWN FLYER
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Joined: Sat Nov 09, 2002 9:25 pm
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Re: Beehive valve spring

Post #3 by THE FRENCHTOWN FLYER » Tue Dec 29, 2015 2:38 pm

thanks for the tips guys
FORD 300 INLINE SIX - THE BEST KEPT SECRET IN DRAG RACING

turbo2256b
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Posts: 306
Joined: Wed Feb 10, 2010 10:02 pm

Re: Beehive valve spring

Post #4 by turbo2256b » Tue Dec 29, 2015 9:48 pm

Have been running behives on my 302 for 2 couple years now with titanium retainers. They were about half the weight of dual springs and steel retainer upped my RPM from 6400 to 7800.

Sick6Turbo
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Posts: 78
Joined: Sat Dec 19, 2015 12:53 pm
Location: Almond, Wi.

Re: Beehive valve spring

Post #5 by Sick6Turbo » Wed Dec 30, 2015 9:58 am

Good point. The beehives show great stability in the upper rpm's especially with a hydraulic roller cams.

Duals are still a great choice for flat tappet cams. Weight isn't much of a concern for me at 5200-5600, but if I go more radical in the future, beehives will be an option.
Dale
79 F-100 turbocharged 300 rear mount 20 psi
Stock EFI bottom end, mild port carb head
12.44@106 1/4 mile in 2015

turbo2256b
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Posts: 306
Joined: Wed Feb 10, 2010 10:02 pm

Re: Beehive valve spring

Post #6 by turbo2256b » Wed Dec 30, 2015 8:05 pm

Besides weight reduction on the valve side (which is a good thing not so on the lifter side) they are also variable rate which helps improve valve opening and closing rates. They are good at reducing harmonics. Got involved at Ford testing valve train components and improved their test equipment.

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