Stock 340 manifolds value
Unless I'm mistaken it looks like to have a pair of the smaller 340 manifolds (1 7/8" outlet). Those are still bigger than the stock 318 manifolds (1 5/8" outlet). But to your point...If your have a low horsepower motor it's not worth it to buy a set of 340 manifolds or headers for that matter. Personally I think the 2 1/4" manifolds help with any engine that makes more than 290/300 horses. Everyone needs to remember that 2 1/4" outlets are of little use if you have 1 7/8" exhaust pipe!!
In my case I have 302 heads,4bbl and a mild cam, dual 2 1/8" exhaust with a 340 driver and magnum passenger manifolds. Your top RPM is also a factor, if you plan to go over 6000 RPM and you like to go to the track then headers might be a better option.
The only reason I started machining and selling the 360 magnum is that many, many FABO members don't like headers (just like I don't like headers). I wanted to give everyone an alternative to the normally expensive 340 driver/passenger manifolds. I don't need the money and it's a lot of trouble but If I can help others I'll do it.
treblig
Question is, on a motor with 325 horsepower or less, what is the gain on the 400 dollar 340 manifolds over the log style I have on my motor? If it's only about 10 hp, then I wouldn't pay 400 bucks for 10 hp. Unless it's a resto, IS there a hp justification for the money?? My style are easy to find and sometimes can be next to free...
Unless I'm mistaken it looks like to have a pair of the smaller 340 manifolds (1 7/8" outlet). Those are still bigger than the stock 318 manifolds (1 5/8" outlet). But to your point...If your have a low horsepower motor it's not worth it to buy a set of 340 manifolds or headers for that matter. Personally I think the 2 1/4" manifolds help with any engine that makes more than 290/300 horses. Everyone needs to remember that 2 1/4" outlets are of little use if you have 1 7/8" exhaust pipe!!
In my case I have 302 heads,4bbl and a mild cam, dual 2 1/8" exhaust with a 340 driver and magnum passenger manifolds. Your top RPM is also a factor, if you plan to go over 6000 RPM and you like to go to the track then headers might be a better option.
The only reason I started machining and selling the 360 magnum is that many, many FABO members don't like headers (just like I don't like headers). I wanted to give everyone an alternative to the normally expensive 340 driver/passenger manifolds. I don't need the money and it's a lot of trouble but If I can help others I'll do it.
treblig
