K frame lowering blocks
How much air flow do you need on a /6. The spacers are cheap? What about all the other work and parts involved. Did you lower your K-member ? I didn't think so. You have no clue of the what would be involved on that old car. He said he was worried about modifying the hood. What about the bottom of that intake setting on the shock tower/stud . I can think of 4 things he'll have to modify or change after he puts those spacers in.
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When I dropped my K-Member on my 1965 Dart GT it was due to using a real tall manifold and spacer on my 273. The tall air cleaner would not fit and the dropped base air cleaner hit the AFB. I was also using 340 A body Iron header and it was hitting before I dropped the K member.
I used 4 large nuts (7/8 wrench head and 7/8 inch long unmodified) and ground down to 3/4" tall. I then put the K-member up in and then tack welded the nuts to the frame real good. The K-members taper for the bolts still kept the unit from moving.
Nothing needed major modifying to fit.
1. The Z-bar for the clutch would have worked but in stock it was miss-aligned so I slotted the bracket that bolted to the frame.
2. The Torsion bars fit well, slid in with a slight tap with my deadblow hammer.
3. Steering shaft fit after i just loosened up the firewall bolts and relaxed the slop in the housing.
4. Brake struts to lower control arm were a bit tight so all I did was loosen the nut in the K-member and re tightened it. I was using Poly bushings so just a re settiling was needed, no binding.
5. Trans fit fine as did the driveshaft angle.
6. I did need to screw the torsion bar bolt in the LCA out a few turns to lower the front the amount of raise the body gained. Alignment shop had to adjust the Camber and toe just a bit but nothing drastic. It was still in spec but not where I wanted it.
The only difference in handling was before this was if I hammered the brakes, the nose dropped a lot. After dropping the front did not dive as much so the car stopped shorter.
EDIT:
This Dart GT went from Seattle Area to Ft Devens Mass for a military school, back to Seattle and then to Augusta GA where I drove it 2 years and traded it in for my 84 Shelby. So well over 10,000 miles after I dropped the K-member with no ill effects.