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Old 07-27-2005, 08:42 PM   #1 (permalink)
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swapping a chevy 6.0 into and older truck

anyone done this, or have a place i can read up more about it, i have and 87 gmc 2500 that i love and dont want to sell, but i need more power ive read an article in a magazine about it and it doesnt look hard, found the motor complete for 2500 bucks but what about wiring,cooling and flexplate issues. If anyone has any advice let me know

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Old 07-27-2005, 09:30 PM   #2 (permalink)
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David Kennedy did this on his original 6.2 K5. Try emailing him, I'm sure he would share.
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Old 07-27-2005, 09:57 PM   #3 (permalink)
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who is he, i might have read the article do you happen to have his e-mail addy

thanks
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Old 07-27-2005, 10:19 PM   #4 (permalink)
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Put a carb on it

Performer RPM LS1 includes a wiring harness and unique electronic Timing Control Module made by MSD® which works with OE sensors to fire the coil-on-plug ignition system and offers a choice of three timing curves. A special throttle and trans bracket that works with 700R-4 and Turbo 350 transmissions is included, making the LS1 engine an easy retro-fit into any muscle car, street rod or marine application.

http://www.edelbrock.com/automotive/man_chevy_ls1.html
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Old 07-28-2005, 04:22 AM   #5 (permalink)
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[QUOTE=ESPEED]Put a carb on it[QUOTE]


And why would you ever want to do that? IMO, one of the best things that happened to cars in the last 15 years has been the evolution of EFI. Especially in something that you would want to be a daily driver or tow vehicle.

Now, if EFI isn't a consideration, slapping a carb on it may be a quicker and cheaper way to get it done. It certainly wouldn't be the way I would go though.
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Old 07-28-2005, 07:39 AM   #6 (permalink)
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Read up about newer LSI swaps, anything that has coil tech, get a good base of knowledge, you mention cooling, wiring, etc - find a complete motor, intake to exhaust with all wiring, that way you start ahead of the game. Call your common sources for engine swaps and talk to them about general headaches so you know what to expect. Remember, GM is GM but 80's truck '00 motor, there are changes but not that much so take it easy and get as much of the parts before you touch the current truck.

Good luck! I would like to see it done - 6.0/4L80/NP205 in a older 3+3, killer.
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Old 07-28-2005, 07:58 AM   #7 (permalink)
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I can't really offer anything to help in the swap except to say that my previous truck had a TBI 350 & the current on has a 6.0. As much as I liked that old 350, I can fully understand your desire to have the 6.0. It's literally night & day. Good luck

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Old 07-28-2005, 10:42 AM   #8 (permalink)
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Why would someone want to put a carb on it?

“offering maximum power and a broad torque curve from 1500 to 6500 rpm. This manifold made 410 hp and 418 ft/lbs. of torque in dyno tests with our matching cam #2215 and Performer Series carb #1413. “(from the link that I provided)

Personally I would run it with the fuel injection. I just wanted to offer this as an alternative for someone who may not have access to factory wiring schematics or want to deal with the extra work involved. Its simplicity is appealing to me however as it eliminates numerous expensive sensors and it MAY be possible to use this with the present fuel system by adding a regulator at the carb (assuming you have a TBI setup now @ 15psi) instead of a new high pressure system.

Note also that the intake is not an inexpensive option (approximately $700 from Jegs)

the biggest problems Kennedy had if I remember the article correctly was the motor mounts and possibly some cross member interference. david.kennedy@primedia.com

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Part 2 http://www.4wheeloffroad.com/brandpa..._k5/index.html
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Old 07-28-2005, 11:27 AM   #9 (permalink)
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wiring dosnt really scare me and i love fuel injection so i will probaly go that route, i read that article last night but thanks for the link, this actually dosnt seem to hard

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Old 07-28-2005, 12:02 PM   #10 (permalink)
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Quote:
Originally Posted by pimptony
.

Good luck! I would like to see it done - 6.0/4L80/NP205 in a older 3+3, killer.


I was thinking the same but with an 8.1
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Old 07-29-2005, 06:16 AM   #11 (permalink)
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If you do the swap, I would try to find the 345 hp version from the Escalade/Denali/SS. On a recent trip we had one truck with the regular truck version, and one with the Denali version, and there was a noticable difference.

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Old 07-29-2005, 10:54 AM   #12 (permalink)
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Quote:
Originally Posted by Buckshot33
I was thinking the same but with an 8.1

Yeah!! I wasnt thinking straight. But then again a ramjet 502 would be an easier swap at that point or custom 572.
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