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Welcome to 3400swap.com!! This site is all about the 3400 V6 SFI (LA1) swap into your GM car that has the 3100 V6 SFI (LG8) or 3.1L V6 (LH0). This is an extremly straight forward and not super complicated motor swap.

Please don't send any emails to me asking for technical help, as they will not get replied to. Thank you.

Version 2.5 of the downloadable 3400 swap guide is now available for download! Be sure to check it out. You will need Adobe Acrobat Reader to view and print.
Frequently Asked Questions. Hey, please read this before asking questions!! Save you and me some the burden! Read me first please!!

The guide has been shorted to 29 pages and the size of the downloadable file has been shrunk to less than 1MB. This should make for a fast download for non-Cable-DSL users.

Reminder: If you have downloaded the guide in the past and plan on doing a 3400 swap in the future, throw it away, download the newest version, and print it out when you need it.

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3400Swap.com & Guide are Copyright © Ryan Pettersen