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3050 hits | 44.85 KB | Posted: 3/26/09

These pre-shaped pieces showed up in the mail. The fact that the tailpipe was made specifically f...

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1416 hits | 47.51 KB | Posted: 3/26/09

The new cat and muffler.

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1378 hits | 49.65 KB | Posted: 3/26/09
Here's a pair of used EFI exhaust manifolds I pulled from a friend's Bronco with a 4.9. It took us ...

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1358 hits | 50.68 KB | Posted: 3/26/09

A picture of the restrictive six-to-one exhaust outlet on the carbed 300. The pipe in front is th...

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1377 hits | 59.02 KB | Posted: 3/26/09

A picture of the intake and exhaust ports on the 300. Despite the fact that it took five hours to...

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1300 hits | 48.57 KB | Posted: 3/26/09

The new versus the old. I had to cut the old exhaust off with a hacksaw. Nothing hard, just time...

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1234 hits | 44.09 KB | Posted: 3/26/09
A size comparison between the old and the new exhaust.

Old = 1 7/8" (2.76 square inches)
Ne...

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1187 hits | 42.34 KB | Posted: 3/26/09

I couldn't get a picture of the inside of the cat, but this is the inside of the muffler. Those a...

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1273 hits | 50.32 KB | Posted: 3/26/09
Some friendly help while I'm busy working. I'm sure he was excited to find a lap to sit in outside....

Intake Removed.JPG
1495 hits | 77.76 KB | Posted: 3/26/09

A picture from a later date, but this shows how I replaced all of the original manifold bolts with...

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1293 hits | 51.4 KB | Posted: 3/26/09

A picture of the exhaust in place and everything hooked up.

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1261 hits | 54.41 KB | Posted: 3/26/09

A picture from underneath the Bronco of all the exhaust in place. It was so sturdy and strong I c...

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1206 hits | 58.44 KB | Posted: 3/26/09

The premade tailpipe had a very nice snug fit. I'd heard complaints of aftermarket tailpipes gene...

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1548 hits | 36.72 KB | Posted: 3/26/09

On the stock setup, the exhaust manifold supplied heat to the intake manifold to warm up the carb ...

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1625 hits | 34.14 KB | Posted: 3/26/09
A trip to the plumbing store supplied me with the extra fittings and hoses I needed to complete the ...

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1758 hits | 79.28 KB | Posted: 3/26/09

Some Indian Head Gasket Shellac really sealed up the threads and gasket. Unfortunately, I found t...

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1255 hits | 68.7 KB | Posted: 3/26/09
A close up of the coolant heat bolted on. For anyone doing this swap, be sure to thoroughly clean ...

EGR.jpg
1318 hits | 74.06 KB | Posted: 3/26/09
The last modification I needed to make was the original EGR pipe. The carb EGR pipe exited towards ...

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1174 hits | 77.45 KB | Posted: 12/20/10
The Mr. Gasket #260 is the best intake/exhaust gasket I've found for the 300.

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1025 hits | 64.96 KB | Posted: 12/20/10

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1020 hits | 67.43 KB | Posted: 12/20/10
The EFI manifolds needed a little grinding to fit with the Offenhauser intake. It wasn't a lot, but...