S code?
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Junior User
Joined: Jan 2009
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From: Liberty, Utah
S code?
newb here ive got a 73 390FE and just wonder how to find out if its an S code. there is a big S cast into the intake manifold is this it? i figure its not an S code since theres not a S with the block numbers which are D3TE and it has a 105 i think it is under the oil filter. also what does the S code really mean? thanksabunch
Postmaster
Joined: Jul 2003
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From: iowa
Should be a standard 390 but its not junk or uncapable. Some intakes are "T" castings and some just use casting numbers. The "S" and "T" are similar performance wise but the "S" has a bit more value in my opinion.
Cargo Master
Joined: Apr 2004
Posts: 2,574
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From: Golden, CO
The (whatever) code you hear people talking about is usually the digit in the VIN that denotes what engine the factory installed. It's more of a pedigree thing for car owners.
The "S" intake is a good stock part to have. It has runners that are smaller than earlier versions. I have seen versions for both 2V and 4V carbs.
I have the 4V intake, it was on the 390 that came in my truck. I would get 10 to 12 MPG with it. 12 MPG does not sound impressive, but it is about 25% better economy than the 2V intake on the current engine.
Welcome aboard!
The "S" intake is a good stock part to have. It has runners that are smaller than earlier versions. I have seen versions for both 2V and 4V carbs.
I have the 4V intake, it was on the 390 that came in my truck. I would get 10 to 12 MPG with it. 12 MPG does not sound impressive, but it is about 25% better economy than the 2V intake on the current engine.
Welcome aboard!
Fleet Owner
Joined: Jun 1999
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From: Creedmoor, North Carolina
Don't know the truth but I have heard many repete that the Edelbrock Performer is copied from the S.
John
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From: CT
Well yes that was the intention.... but S and T intakes have both been used from the factory on cars and trucks. Neither is a specific application.
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Junior User
Joined: Jan 2009
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From: Liberty, Utah
thanks guys. i figured the s just meant the intake. and yeah mine is the 4V one also and with a edelbrock performer 600cfm carb im gettin around 10-12 on the highway and up to about 15-17 on the freeway. im probably goin to get a performer rpm intake and just store the original one for if i want to put it back on someday.
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From: Gadsden Purchase
"Ford never learned how to make the same part twice" -my Chevy buddies
It's cool how there was a system where they could improve or modify a part
(manufacture it cheaper, if nothing else) or swap parts around as needed.
John, if you were betting money... which way would you bet? ;)
That there -never-ever- was a car off any Ford line with a T manifold?
Huh?
We ARE talkin'bout Ford here. ;)
Me?
I wouldn't put anything past 'em. ;)
Alvin in AZ with a big ugly T on his intake manifold
It's cool how there was a system where they could improve or modify a part
(manufacture it cheaper, if nothing else) or swap parts around as needed.
John, if you were betting money... which way would you bet? ;)
That there -never-ever- was a car off any Ford line with a T manifold?
Huh?
We ARE talkin'bout Ford here. ;)
Me?
I wouldn't put anything past 'em. ;)
Alvin in AZ with a big ugly T on his intake manifold
Needsmorecoffee.
Joined: Oct 2004
Posts: 3,624
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From: CT
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