Our boxes are spec'd out by Tom Lee of Lee MFG. Tom Lee has been working with steering boxes since 1967. He's the guy that was building 100% of all Nascar steering boxes back in 1989. Well, Lee basically took an OE box to Delphi with some engineers to build a box that could be retrofitted to the early style bolt pattern and spline since it had the rack and pinion valve technology. This was accomplished and nascar along with the aftermarket had a better feeling box that could be bought new and the old worn boxes no longer had to be rebuilt. This was the birth of the 600 series boxes or more particularily 670 which refers to the bore size in mm. This is NOT an OE available box but originated from one.
Our boxes are built specifically for us with Lee's recommended valving based on his extensive experience. Each box is a brand new box REBUILT not just sold as is from Delphi (of which he has returned many). They are initially built on an union run assembly line quickly, which is unsatifactory for Lee. Each one is completely taken apart, re-honed, blueprinted, dynoed, cleaned, and finished in a nice zinc plating. These are not like the AGR boxes that are rebuilt used boxes. These are race proven precision boxes.
The other features are the same as the DSE box.
12.7:1 Steering ratio
6 lbs lighter than stock
will require a 30-3/4" spline rag joint for the factory steering column (we offer for $79)
Accepts factory power pitman arm (can provide as well for $59)
Our boxes come electro-plated and brand new for $515.
600 series boxes are basically dimensionally the same as the factory box in the areas you are talking about as far as header clearance.
Please give me or Tyler a call if you have any further questions.
Shane
Brian Hobaugh SCCA National Tour June 2014
First Hemi 'Cuda Convertible Ever Built
Short clips: Goodguys Pleasanton autocross and pit videos
decisions on the unisteer r&p dse 600 the flaming river box or the afx 670
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