Rochester 2GC info

outlaw · 10-09-2015, 10:40 PM

I have a mercury marine 2gc that's 1 3/8 casting no sleeves no bore marks. Number 7044185

NORMAN BARNARD · 10-10-2015, 11:24 AM

The 6th digit of an 8 indicates it's a non gm part. It's truly a merc. Marine carb. Installed on a 4.9 liter motor. Venturi should be large bore (1.375) and 2 idle screws under the float bowl

check the booster leg to see if it has the good booster #38864,
if it does, then it's a good start for maybe a stocker.

10-09-2015, 10:40 PM	#1
outlaw Member Join Date: Aug 2008 Posts: 137 Likes: 78 Liked 132 Times in 52 Posts	Re: Rochester 2GC info I have a mercury marine 2gc that's 1 3/8 casting no sleeves no bore marks. Number 7044185

10-10-2015, 11:24 AM	#2
NORMAN BARNARD Member Join Date: Mar 2006 Location: EL PASO, TEXAS Posts: 156 Likes: 0 Liked 2 Times in 2 Posts	Re: Rochester 2GC info The 6th digit of an 8 indicates it's a non gm part. It's truly a merc. Marine carb. Installed on a 4.9 liter motor. Venturi should be large bore (1.375) and 2 idle screws under the float bowl check the booster leg to see if it has the good booster #38864, if it does, then it's a good start for maybe a stocker.