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3x00 Specifics Comprehensive Coverage of the 3x00 Hybrid Motor

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Old 09-07-2018, 02:40 AM
94 5-speed coupe 94 5-speed coupe is offline

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Default Updated info on 3.4/3400/3500 swap

Does anyone have updated info for this swap, which is to use the stock 3.4 block, crank & rods, with 3400 pistons, 3500 (LX9) heads and LIM, topped off with a 3400 SFI UIM (to fit under the low Gen 4 cowl)?

Anyone done this recently? Anyone in the process?

I've read through all the threads that seem to apply, but most are nearly 10 years old (some are newer, but not many). I know that the old stuff still applies, but I'm interested in what possible components might now be unavailable, etc.....

I live near the guys at WOT-Tech, so I will be checking with them later on. Right now, I have removed everything but the short block assembly, and am pulling it and the tranny out in the next few days....

Thanks in advance for any replies!

Last edited by 94 5-speed coupe; 09-07-2018 at 02:42 AM.
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Old 09-27-2018, 11:31 AM
wchiarizzio's Avatar
wchiarizzio wchiarizzio is online now

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Hey I'm by WOT as well! I've been following the hybrid swap info, haven't seen much new stuff as the ones that have been built in the past 10 years are mostly still running.

I have a spare 3.4 now. May be looking at the whole 3500 top end swap with the 3400 pistons. Mars on thirdgen.org ran a whole 3900 in his third gen with a turbo, completely stock, and broke under the 10s. He swapped that drivetrain into another 3rd gen after wrecking the first one.

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