Corvette-Style 2-1/2 Inch Ram Horn Exhaust Manifold, Right Side

Night and day better than Dorman castings!

I'm typically a fan of Dorman products, but after receiving THREE different 674-503 (RH) castings with thin/porous inner collector stud flanges [ordered thru FLAPS, shipped directly from manufacturer] for an early L-76 clone build, I decided to try Speedway's version, which, I assumed was also a Dorman part (though hopefully from an earlier, higher quality batch), however they keep stock on hand, and I happen to live close enough to inspect items in person before purchasing. Speedway's product was superior in every way! So much so, in fact, that when I brought it home and compared it to the "good" Dorman 674-504 (LH) casting, I immediately purchased Speedway's LH casting, which, naturally, was just as nice. See photos for comparison of Speedway (spot-faced holes, smoother) and Dorman (drilled-only holes, rougher) castings. Note- if you need a unit with a choke stove tube, the Speedway RH does not have one; Dorman RH does.

Corvette ram horn

Speedway's ram horn looks very close to original. I went with this ram horn because I needed a RH exhaust manifold for installing my vintage air ac compressor. I would have to cut my alternator mount off my original manifold. So Speedways manifold was perfect to trim and fit. And the price was cheaper than buying a junk yard manifold.

As Advertised

Purchased 2 Chevy rams horn exhaust manifolds for a hot-rod project. Did not want or need any type of header for a reasonably stock engine. Cast iron manifolds are typically a bolt-on, more quiet, and the 2 1/2" outlets will provide plenty of exhaust flow. Nice quality part. No disappointments.

yes

very good quality

Exhaust manifold worked out great.

We needed just 1 exhaust manifold for my 57 Chevy, and this was the perfect solution.

Quality manifold with good finish.

Quality piece with good finish.

Great product

Wasn't able to use,but great product. Very well made

Much nicer than the stock exhaust

These fit nicely on my stock '56 265. Definitely will let the engine breath better

Great exhaust manifold.

These manifolds are great. I used them doing a small conversion on my 1950 GMC truck. These fit well and flow good.

21/2 in Ram Horn Exhaust Manifold

Replaced my right 2 1/2 exhaust manifold that had cracked and couldn't be repaired. Bought manifold from Speedway Motors and I couldn't be happier with the quality of this manifold looks like the original and the price you can't beat it.