IRS kits, C4 'vette, Heidts, or Kugel???? - Hot Rod Forum : Hotrodders Bulletin Board -- Hot Rod Forum

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Old 01-05-2008, 01:32 AM
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IRS kits, C4 'vette, Heidts, or Kugel????

Hi everyone, I am in the early stages of planning a 35 ford sedan. I am thinking I will use a 300Hp LT1 and C4 corvette IFS. The big question is the rear end. It has to be IRS, but I am wondering what the folks here think of the Dana 36/44 vs. the Heidts or Kugel ford 9” based IRS kits.

The ‘vette would be cheaper, and 300 Hp “shouldn’t” be a problem, but I am worried that it will have to be narrowed, and have no idea what that does to the suspension geometry.

Any help / tips / thoughts would be greatly appreciated!

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Old 01-05-2008, 08:37 AM
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If you have the bucks, and you obviously do if your considering Kugel, go with the C5 drive train. That IRS can handle 300+ HP with no problem, plus it rides and handles much better.

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Old 01-05-2008, 09:57 AM
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If you want to look at a couple more Ford 9" IRS setups, check these out.

They both offer various widths.

Later, mikey
my signature lines...not really directed at anyone in particular..

BE different....ACT normal.

No one is completely useless..They can always be used as a bad example
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Old 01-08-2008, 08:09 PM
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If you are looking for a kit/set up, you may want to consider Progressive's Corvette IRS C4 approach. If you need to put a new frame under your 35, this may be worth considering.
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