Hooker Blackheart 1967-72 C10 Truck LS/LT Swap System Info Thread

[toddoky]

Originally Posted by BlueJeep

Todd, can you educate me on how your hooker engine mounts compare to the poly leaf-spring type bushing mounts for vibrations? Thanks!

I can’t make a comparison to the cylindrical poly mount inserts you are referring to as I’ve never designed a set of swap mounts that use them or driven a vehicle that has been equipped with them. I can however make a direct comparison to GM factory 4th-Gen F-Body mounts, because that’s what I design all the Hooker Blackheart LS and LT engine swaps to use. That gives the user the option to use stock rubber replacement mounts, or aftermarket poly inserts in the clamshells, both of which will be available from many sources for years to come.
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[BlueJeep]

Originally Posted by toddoky

I can’t make a comparison to the cylindrical poly mount inserts you are referring to as I’ve never designed a set of swap mounts that use them or driven a vehicle that has been equipped with them. I can however make a direct comparison to GM factory 4th-Gen F-Body mounts, because that’s what I design all the Hooker Blackheart LS and LT engine swaps to use. That gives the user the option to use stock rubber replacement mounts, or aftermarket poly inserts in the clamshells, both of which will be available from many sources for years to come.
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I bought the Holley mounts, and have a quick question for you. Any idea why the poly insert is offset to the right as it's mounted up in the clamshell? I see the OEM F-Body mounts are the same, so I assume to make a direct replacement you had to, but I'm wondering about the reason for it. Thanks!

[toddoky]

Originally Posted by BlueJeep

I bought the Holley mounts, and have a quick question for you. Any idea why the poly insert is offset to the right as it's mounted up in the clamshell? I see the OEM F-Body mounts are the same, so I assume to make a direct replacement you had to, but I'm wondering about the reason for it. Thanks!

Yes, the Hooker Blackheart mounts are designed off of the geometry of the stock GM 4th-gen mounts so as to be interchangeable with them. I can't say for sure why GM built the offset/bias into the inserts, but I would figure it had something to do with the architecture of the 4th-gen cars that required it to be that way. They could have also done it to have a single part number fit both sides of the engine to increase their order quantities and lower production costs.