Getting ready to do the "hockey puck" - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 05-20-2007, 12:29 PM   #11
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Quote:
Originally Posted by willwren
91PA, the GP radiator core support is totally different, and heavily reinforced. Doing that to an H body is very bad advice.

It'* also not necessary. There are plenty of ways to get the same result by improving/changing the stock mounts.

I would caution ANYONE with an H body not to install the GP upper dogbone braces without some very creative support in place (which probably isn't possible due to the hood structure and large radiator).

The GP has the dogbones because they have a different subframe. They can't run lower mounts where we do.

In addition, that solid RR dogbone is a VERY bad idea. The stresses applied by the drivetrain have no buffer. You're going to break your differential housing eventually. And have to live with a helluvalot of vibration.
theres rubber sleves on the RR dogbone so yes there is a buffer ive kept measurements of the radiator support over the months even after hard driving there is no change in measurments so the rad support has not bent in anyway i didnt advise anyone to do this mod i was showing my work and we all have seen the problems with h-body mounts with the more power you add h-bodies have huge deflection in the engine mounts this is simply a counter measure
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Old 05-20-2007, 12:34 PM   #12
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A slightly modded L67 puts down far more torque off the line than you do. I gaurantee my car would rip my core support out of the car if I did that.

And it'* not necessary. I've replaced my stock mounts and have VERY little engine flex. Remember what I said. The GP doesn't have the same lower mounts as the Bonneville. On the 2k'*, do the hockey puck.

On the older Bonnevilles, remove the shock strut (94 and newer, older cars upgrade to this mount then modify it) like billboost37 did, and replace it with a custom damper.

Do not attempt dogbones on the H bodies. Please try a search on that subject on this Forum.
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Old 05-20-2007, 12:39 PM   #13
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the upper dogbone i made was for keeping the engine from twinsting back to the firewall
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Old 05-20-2007, 12:41 PM   #14
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PA, ALL OF OUR CARS have the lower dogbone. But we also have factory OEM bushings, not thin rubber sleeves.

Can we get back on the correct topic now? You've hijacked a topic about a modification to a much newer and different setup than you have.
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Old 05-20-2007, 01:17 PM   #15
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whats with all the zip ties man......
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Old 05-20-2007, 01:22 PM   #16
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i didnt have a chance to get the nylon cords so i had to ziptie the top of the fan to the radiator
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Old 05-20-2007, 01:23 PM   #17
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Back on topic please. We're discussing a hockey-puck mount on a 2k.
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