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CantRepeat
03-22-2009, 04:35 PM
Where the GT40 heads an option from Indmar on an MC?

I have the 285hp 351 and I'm trying to figure out if I have the GT40 heads. Anyone have a casting number or a visual inspection check for them?

Jim@BAWS
03-22-2009, 05:30 PM
Where the GT40 heads an option from Indmar on an MC?

I have the 285hp 351 and I'm trying to figure out if I have the GT40 heads. Anyone have a casting number or a visual inspection check for them?

If you are 285 HP then you have GT-40 heads

Jim@BAWS

CantRepeat
03-22-2009, 05:39 PM
If you are 285 HP then you have GT-40 heads

Jim@BAWS


Yeah, it had the 285 stickers on the spark arestor cover.

Thanks!

denverd1
03-23-2009, 11:29 AM
should be marked under the valve cover. But, like Jim said, if your have an HO 285, you got Gt40s.

Muttley
03-23-2009, 01:32 PM
Kewl! I learned sumpin' today. I guess I must have them, too, since I have the HO 285hp.
:banana:

east tx skier
03-23-2009, 02:55 PM
There are some little tick marks on there somewhere that indicate that it's a GT-40. I know there's a picture of what I'm talking about on this forum somewhere.

03 35th Anniversary
03-23-2009, 07:18 PM
There are some little tick marks on there somewhere that indicate that it's a GT-40. I know there's a picture of what I'm talking about on this forum somewhere.

Look on the ends of the heads if there is 3 raised lines they are GT-40s if it has 4 raised lines they are GT-40P heads.

Laurel_Lake_Skier
03-23-2009, 10:20 PM
Look on the ends of the heads if there is 3 raised lines they are GT-40s if it has 4 raised lines they are GT-40P heads.

The "P" heads would not be original......

east tx skier
03-23-2009, 10:26 PM
That's it. So look for the three raised tick marks/lines. A dual feed carb, if it's stock, would be another indication.

CantRepeat
03-25-2009, 05:19 PM
Sweet, just look at my heads, while I was checking the fuel sending unit, and they have the 3 lines about an inch or so going up them. Glad I didn't buy a set and then find out.

Thanks guys.

flipper
03-25-2009, 05:40 PM
Sweet, just look at my heads, while I was checking the fuel sending unit, and they have the 3 lines about an inch or so going up them. Glad I didn't buy a set and then find out.

Thanks guys.

That would suck:rolleyes:

CantRepeat
03-25-2009, 06:07 PM
That would suck:rolleyes:

Yup, that's why I need you keeping me on the straight arrow!

03 35th Anniversary
03-25-2009, 06:10 PM
Yup, that's why I need you keeping me on the straight arrow!

Your in for a ride!!!

Flipper is far from straight!!!

CantRepeat
03-25-2009, 06:12 PM
Your in for a ride!!!

Flipper is far from sraight!!!

I know, I've PMed him about party request!