S-code 390

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Apr 28, 2005 | 08:30 PM

frogdude2100

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S-code 390

Can anyone tell me the details on the S-code 390. I have an H-code 390 in my truck, and saw the rebuilt motor in the links on this site, and was wondering if the S-code would be a step up, or down.

Apr 28, 2005 | 08:56 PM

rusty70f100

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From: Iowa

Do you mean the big S on some 4 barrel intake manifolds?

Apr 29, 2005 | 12:34 AM

Annihilator

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From what I have read they are a prety descent intake. One thing to watch for with them is that sometime in the 60's, I believe they changed the port size on them to accomodate the later velocity port heads. You might want to ask about this intake on www.fordfe.com I think that Dave Shoe (one of the guys on there) knows all about these intakes. I read one time that they are dogs but I don't know if that statement really holds any water or not.

Apr 29, 2005 | 02:19 AM

Bear 45/70

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From: Union, Washington

If you are talking about the "S" engine code in the Fairlanes, Torinos and Mustangs, then yes it is. The 390GT engine was a big step up from any stock truck engine. Rated at 325 (1968 only) to 335 hp @ 4800rpm and 427 lb/ft of torque at 3200 rpms. Other than the early HP engines in the early 60's this were the best 390s.

Apr 29, 2005 | 08:14 AM

jowilker

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From: Creedmoor, North Carolina

Tis my understanding that the Edelbrock Performer intake is modeled after The 390GT S intake.

John

Apr 29, 2005 | 09:36 AM

Mike G

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From: Littleton, CO

The "S" and "H" you are refering to are the engine codes on your VIN. It is an upgrade as you are going from a low compression truck motor to a better compression car engine. If you want to build it yourself, just drop in some car or 360 pistons and a better breathing cam in your "H" motor.

--Mike