302 exhaust manifold and heat riser tune

Cougar Community Classic Cougar Maintenance Restoration and Repair
1

Currently have a 68 with automatic 302 2 barrel carb. Has standard exhaust manifold. . Thinking of getting the “hipo” factory manifolds for the high performance 289 Mustangs. I do not see any fittings for the heat riser tube on the “hipo” manifolds.

Anyone made this switch? What did you do with the heat riser tube?
I did scan the forum for heat riser tubes and did not see this subject mentioned for 302 engine. I also spoke with Daryl at WCC and he did not see a fitting for the heat riser tube on the high performance manifold either. He suggested coming here and asking you all.

Thank you

2

Don’t profess to be expert as far as equipment, but weren’t the Hipos manual chokes? That would eliminate the need for the heat riser

3

There were no Hi Po Cougar engines. All of the 302’s have automatic choke. All of the RH exhaust manifolds have provisions for the two tubes for the automatic choke.

4

I think the manual vs automatic is the answer. Here is the listing from the WCC site that prompted my question. Thank you for your help

5

HiPo Manifolds are great but they require a different H pipe or custom exhaust. I would convert to electric choke while you are at it.

6

I don’t think you would see any noticeable benefit from installing those. The stock ones would benefit from a dual exhaust system if you are stuck on manifolds. Personally I would rather spend the money on a set of shorty tri - Y headers like those sold by Tony Branda for example.

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7

One thing that should be known about the HiPo manifolds is that they won’t fit with the original Z bar used on original manual transmission cars. You have to get a '67 Mustang HiPo Z bar. I believe that NPD has the part and there may be others.