Imco or Indmar

[WishIknew]

Imco power flow or indmar exhaust which is better or worse???????

[ULTRA26 # 1]

Imco power flow or indmar exhaust which is better or worse???????
Most people I know who have Imco Power Flows, like them. What would they be going on?

[WishIknew]

Most people I know who have Imco Power Flows, like them. What would they be going on?
454 mpi i/o have imco now have indmar in garage didnt know if worth time to change//// no problems with imco:D

[BrendellaJet]

What imco's?
If they are the powerflows with the stainless risers then keep the Imco's. I read elsewhere however that the Indmar manifolds you have are good to around 550 hp, maybe 600. If less than that its probably not worth the effort to change.

[BDMar]

Imco is a better quality and will make more power.

[ULTRA26 # 1]

What imco's?
If they are the powerflows with the stainless risers then keep the Imco's. I read elsewhere however that the Indmar manifolds you have are good to around 550 hp, maybe 600. If less than that its probably not worth the effort to change.
I would have to agree with this

[WishIknew]

What imco's?
If they are the powerflows with the stainless risers then keep the Imco's. I read elsewhere however that the Indmar manifolds you have are good to around 550 hp, maybe 600. If less than that its probably not worth the effort to change.
All i know is it says power flow on the side and they are black and its a stock motor so 385hp????

[uLtRADeNniS]

I ran the IMCO Powerflow kit in my old boat on a mild 454.. I defiantly

[BrendellaJet]

Don, as long as they are in good shape, run em. There are people running powerflows with over a 1000 hp. Might want to put them on the 502 with the whipple if you are still going that route...

[WishIknew]

Don, as long as they are in good shape, run em. There are people running powerflows with over a 1000 hp. Might want to put them on the 502 with the whipple if you are still going that route...
No I am going to keep the Bassetts for the jet dont want no more places for water to get in:D :D

[kenny spring]

i have a set of power flows bbc polished with tail pipes $ 1500. obo (310)213-2668

[BrendellaJet]

i have a set of power flows bbc polished with tail pipes $ 1500. obo (310)213-2668
Pretty proud of those things eh? FYI I know of two sets in EXCELLENT condition sold in the last year that averaged $650, manifolds, risers,S pipes, hose & tips with all hardware. Considering new Lightnings are $1900 for a nicer looking exhaust...you are overpriced.:)

[WishIknew]

Pretty proud of those things eh? FYI I know of two sets in EXCELLENT condition sold in the last year that averaged $650, manifolds, risers,S pipes, hose & tips with all hardware. Considering new Lightnings are $1900 for a nicer looking exhaust...you are overpriced.:)
.:D :D :D I was about to rip em off the boat and sellem like some crack head!!

[BrendellaJet]

go for it. But considering you're about the only person with any money to spend around here you'll end up buying them from yourself!

[WishIknew]

Money to spend ???? i was talking about taking apart my RUNNING boat for money I dont have unlimited funds like PAPAG AKA MR MOABI:D :D :D

[PaPaG]

Money to spend ???? i was talking about taking apart my RUNNING boat for money I dont have unlimited funds like PAPAG AKA MR MOABI:D :D :D
You have a running boat? :jawdrop:

[jbone]

My boat came with an Indmar 502 and it had Indmar polished aluminum center risers. For what its worth, I took off the Indmars and went with Lightning Water Jacketed headers and picked up 200 rpm.
J

[WishIknew]

My boat came with an Indmar 502 and it had Indmar polished aluminum center risers. For what its worth, I took off the Indmars and went with Lightning Water Jacketed headers and picked up 200 rpm.
J
What HP on the 502 just got 1 not sure if its indmar or not????????

[jbone]

The original 502 was the 415 hp version. I later replaced it with the ZZ502 500 hp.
J

[BrendellaJet]

Don your 502 is the HO version according to all the serial #'s. 450hp.
I wouldn't worry about leaks with the exhaust. Your boat would look nice with the Imcos on it. Seal em up with a continuous beed of silicone and that thing would look very clean, not to mention it will scoot.