1988 272 sr1 exhaust upgrade
 

Anyone know if gil manifolds will fit in this boat with twin 454's? The space between the two with stock manifolds is pretty tight and the gils are pretty wide. Boat is wrapped for the winter so I can't measure right now.

Any help is appreciated.

Should be no problem. I believe the beam in the 272 is 8'3", the same as the 303. Take a look at the pic in this thread; this is RT930turbo's 303 (my old boat) with 454Mags and Gils:

http://www.offshoreonly.com/forums/f...ep-winter.html

The beam on the 272 is 8'0". MY 357 with an 8'6" beam has Gill's with dry tails and thay are a tight fit.

The beam on my 1988 311 was 8 feet and I installed Gils with no problem.

I have gills on my '89 311.they fit but are tight.I had to reposistion the ram to lift the hatch

Trs or Bravo ?you can measure the drive centers..,,same thing.If its Bravos with center rise mercs the gills should work but if there tail rise and trs I would look closer at the motor seperation 2c

272 is narrower than a 311, I'm working on a 272 right now, I'll measure between manifolds tommorow...

I looked at the formula website and in the vintage section the 1988 brochure says the 272 is an 8' beam not 8' 3".... like 303 or 311....

I wonder if the engine spacing is the same...

Do you have the Gil manifolds now or thinking of buying? If you don't already have them, look at the Stainless Marine manifolds. I'm sure they will fit. Is your boat Trs or Alpha's behind 330's ? I put SM on my 357, lots of room between the manifolds, but mine is 8'6".

Looking at buying. And used to save some money. A ton of money actually.

I just want to make sure they will fit first....

The boat is Bravo's behind 454 magnums...

big blocks and Bravos and merc stock center riser cast iron manifold.................the gills should fit.............the beam of the boat has nothing to do with it,it's the center line of the motors that tells the tail

That is what I was thinking. I just wish the boat wasn't shrink wrapped. I hate to buy something if it won't work and I am pretty sure the stock manifolds and risers have seen their day.

I found a couple sets of gils in a few places all for a really good price.

Get a chance to measure???

Can you measure the drive center line from outside? Measure to the top center of the transom assembly. This will be the same as the engine center line. I can go measure mine right now if you think it would help...

Here is my center line on the 303....

they fit fine. i got a 90 272 have emi's on it with the long tails. identical to the gils. just on the outside tails the exhaust hole in the transom is in, so u have to angle the exhaust hose in. but everything fits fine

..

Gils fit fine on my 1992 336 with 8'0" beam.