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When did they stop engraving SFI on the 3400 plenum? I just picked up a 3400 that I don't have a solid history of and I am wondering if there are any other identifying methods to figure out what year the engin actually is. Thanks!
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"When you don't do anything, you have plenty of time to post questions that don't mean anything tomorrow."
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I'm pretty sure it always got '3400SFI' on it. I have never seen one that just says '3400' on it. Now, if it is completely blank, then that would be a 97-99(?) minivan 3400, as those are the only ones that didn't have anything on the plenum.-Brad-
89 Mustang : Future 60V6 Power
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Got a pic? Im not aware of a change either but perhaps in 03-05 it got just 3400 on it.Ben
60DegreeV6.com
WOT-Tech.comComment
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my 2004 GAGT says "3400 SFI"
you can kinda see it here...
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Maybe I am on crack... the engine will be delivered either tomorrow or thursday... I will check then. Any way... any other way to tell what year it is?sigpic
"When you don't do anything, you have plenty of time to post questions that don't mean anything tomorrow."
- BenComment
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Should have the last 2 digits stamped on the LIM. 00 for 2000 or 99 for 1999 etc.
Its about a 1.5"x1.5" raised section so its hard to miss. Not sure if it can be seen with the plenum on tho.
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Sure as heck there it was... It was kinda dim where it was being stored... I just found a pic of it.
What the heck is that thingy just in front of the oil fill hole... it goes around the engine to the other side where there is another thingy just like it in front of the coils... metal tubes with what looks like a vacuum solenoid interface... is it AIR injection?Last edited by carbon; 01-30-2007, 07:36 PM.sigpic
"When you don't do anything, you have plenty of time to post questions that don't mean anything tomorrow."
- BenComment
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Thanks! That will be a huge help when I go to get documentation for this thing. I am new to the 3x00 but I have a 2.8 Gen 1 and I know my way around it fairly well... I am excited to get this thing home.Originally posted by Chris88CL View Postsigpic
"When you don't do anything, you have plenty of time to post questions that don't mean anything tomorrow."
- BenComment
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Those last 2 digits aren't always accurate though... Pretty sure my 02 that I have has 00 on it.-Brad-
89 Mustang : Future 60V6 Power
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Mine says 03, so they must have changed something for '03+ 3x00's.Originally posted by Superdave View PostMatt
2000 Oldsmobile Alero GLS sedan
3400/3500 hybrid, Diamond Racing forged pistons, Scat I-beams, TCE DRTC, ported heads, WOT Race cam, PAC 1518s, Manley valves, F40 6-speed with Quaife LSDComment
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For the 3400 I have seen 99, 00, 03
On the 3500 I have seen only the 042000 Grand Am GT
2011 Chevy Impala
"The world's best cam combined with a poor set of heads will produce an engine that's a dog. But bolt on a set of great heads even with a poor cam, and that engine will still make great power." ~John LingenfelterComment
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I'll go out and check my '04 in the morning...Originally posted by mfuller View Post
i know '03 finally got coated piston skirts but i don't remember them changing anything else...Comment
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8mm rocker arm studs. I don't think I saw any difference between 00 and 03 lower intake manifolds.Ben
60DegreeV6.com
WOT-Tech.comComment
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00-02 have 00 on the LIM.... there is a 03 stamped LIM that is 03+ and then the 3500's have 04 stamped on the LIM.
I dont know if the 03 stamped LIM is different or not, they must have changed something to justify a new casting.
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3500 Build, Comp XFI Cam 218/230 .050 dur .570/.568 lift 113LSA
Fully Balanced, Ported, 3 Angle Valve Job, 65mm TCE TB, S&S Headers.
Stage-1 Raybestos/Alto 4t60e-HD, EP LSD, 3.69FDR
12.61@105 Epping NH Oct 2015 Nitrous 100shot (melted plugs) 13.58@98.8 N/A 3200LBSComment
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