1978 Dodge Truck carburetor

THEFLAVIO

MEMBER
1978 DODGE TRUCK
5.2L
V8
2WD
MANUAL
118,000 MILES

Which is better: a thick or thin carburetor to manifold on a 1978 318 with a 2 barrel carter BBD?

Thursday, June 18th, 2015 AT 11:39 AM

3 Replies

HMAC300

MECHANIC
48,601 POSTS

I assume it's the gasket you are talking about it really doesn't matter on a truck that old.

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Thursday, June 18th, 2015 AT 12:12 PM

THEFLAVIO

MEMBER
3 POSTS

Yes, on the 1978 dodge truck, it is the gasket. Can you tell me the theory why thick or thin would perform differently if engine had few miles and carb new., Or is it an old wives tale one is better. Carb is new and I have both thin and thick from some old kits. Should I flip a coin?

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Thursday, June 18th, 2015 AT 5:19 PM

HMAC300

MECHANIC
48,601 POSTS

During that time it was the thick gasket because of hot starts figuring the carb would be farther away from the heat due to some places at the time using alcohol in fuel as it was scattered not like today where it's used all over. But today where alcohol is in every fuel mix it pretty much doesn't matter because hot starts are normally a different problem with carbs. If you have both then put on what you took off but it really won't matter much at all. A lot of kits today don't come with the thick gasket just a paper one. The problem with carbs then was the floats would get ate out from the alcohol and or the accelerator pump being leather would shrink and not work right. Or rubber that wasn't resistant to alcohol doing the same. Now a days that problem has been cured.

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Friday, June 19th, 2015 AT 7:19 AM