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91 Lumina L27 swap... can a 282 or 284 take the abuse?


ragejg

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I'm in the planning stages of this project, which involves a 91 4 door Lumina receiving a 92 Olds L27 motor... (I'll be obtaining regal 3800 ECM/wiring and mounts)... the 4T60 of course would work fine, but I'd really like to do up a 5-speed if I can.

 

The 3800 isn't going to worked over that much... maybe a K&N and that's about it... so it's not gonna be THAT much more powerful than the old 3.1...

 

Can a getrag 282 survive under these conditions? Will it mount all right and will the axleshafts match up properly?

 

Also, for the clutch pedal and all the other pieces, I'd need to obtain these from what car? An early 90's Cutlass coupe with a manual? Are there others?

 

Thanks. :)

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you will need to aquire a flywheel from a firebird 5 speed car and the two should mate perfectly. a 282 would be fine for the L27. you will need the PROM reprogrammed with the 5 speed program. http://www.gmtuners.com this website can make the L27 alittle more peppy while they are at it and the car will run great. Have fun and that car will be a blast with a 5 speed 3800.

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Firebird 5 spd?

 

RWD flywheel? From the 3.8 v-6 edition? Meaning Camaro v-6 as well? Or the older-gen 2.8 equipped cars?

 

Or did you mean Sunbird (Cavi Z24)?

 

... and I know nothing of PROM programming, guess I'll do a little research on where I'd send the chip etc...

 

I don't mind diving into this a bit and learning as much as I can about the intricasies of this possible swap, so I'm feeling undeterred as of yet, and will maintain said course...

 

However, if any of you have any more tips/info/links on this subject, I'd appreciate it... Don't worry, I WILL use the search function... 8)

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use a gen 2 3800 (L36). use a monte carlo engine harness.....use the firebird flywheel....you will need a bracket for the trans to motor at the end of the intermediate shaft.

 

i have been using a 282 against a L67 in my GP and it has been fine. i will post some pics in a week or so of the motor in

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Thanks but no thanks on the L36. The L27 is well within my reach, and I have no reason to consider any other engine... and after more reading and searching, and the help of forum members here, I'm definitely going to pick up a 282...

 

I'm confused on teh firebird thing though, if we're talking a v6 firebird, why was camaro not mentioned? Are we talking 2.8 or 3.8?

 

And as far as bracketry goes, I'm sure one can be fabbed fairly easily, asn I wouldn't have a problem with having this done knowing that the main engine-tranny-axleshaft connection is going to be well-fitting.

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Thanks but no thanks on the L36. The L27 is well within my reach, and I have no reason to consider any other engine... and after more reading and searching, and the help of forum members here, I'm definitely going to pick up a 282...

 

I'm confused on teh firebird thing though, if we're talking a v6 firebird, why was camaro not mentioned? Are we talking 2.8 or 3.8?

 

And as far as bracketry goes, I'm sure one can be fabbed fairly easily, asn I wouldn't have a problem with having this done knowing that the main engine-tranny-axleshaft connection is going to be well-fitting.

 

The Camaro and firebird are the same thing. It doesn't matter if he mentions it or not. A firebird one will work just the same. That is what he used so thats what he mentioned. A flywheel from a 3.8L f-body is what you'll need.

 

Shawn

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Brianteel, no, my 91 does not have ABS... why do you ask?

 

Hmm, a 3.8 series II flywheel from a 96 and newer RWD f-body... interesting... The only ones I can find online are for fieros and they have 6 lbs shaved off to fit the tranny, and run $360... I'd be able to use a bone-stock flywheel, right? And if so, does anyone know where I can get one, besides my ($$$) GM dealership?

 

thanks so much already for your help, guys. :)

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Regarding a 300hp series II with a 282, I met a guy 2 yrs back with a Z-24 which was stuffed with a sightly modded L67 (power stering DELETED due to space requirements, lol)... he had taken most of his stuff to a shop in canada, and they had really really recommended that certain parts of the 282 be strengthened due to the extra brunt of the ~300hp motor... maybe the gears? I think he had already gotten a higher spec clutch, and had said that wasn't enough...

 

His brother had an L27 in his 88 fiero, with a 282 as well, I do believe, come to think of it... I'm jealous of these guys :P ...

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for the fly wheel you have to get it shaved down i have the numbers if you know a machine shop. the plates is to thick to use stock.

 

the reason for the ABS question....it you dont have abs you can use any 282 axles from a w-body and not have to change anything

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I think he had already gotten a higher spec clutch, and had said that wasn't enough...

 

thats because technically a clutch does nothing to beef up the actually tranny...it can actually spell disaster for the tranny if its too strong of a clutch...

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the key word there canda, is "had", did you mean still has or has since sold the car, or it crapped out?

 

Nah....he still has it, car runs pretty well too.

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use a stock clutch i was running a stage 3 spec with my L67 and it grabbed nice but i think stoke is better for the power of the NA 3800 motors

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