StrokerTA

Anyone done this yet? Looking for some info.
Thanks

1989GTA

Are you talking about the 6L80 transmission?

StrokerTA

T56 trans, manual, with 3 pedals!

speedtigger

iTrader: (16)

Yes. There is a guy on here with a 408 in a 87 Monte with a 6 speed.

Toddoky

Which LS variant do you plan on running and with what accessory drive set-up? You'll get better advice from guys here if those facts are known.

StrokerTA

I think I am going to build a 370" engine with a 6.0 iron block.
Put some GM LS3 or LSA heads on it.
And an Magnacharger I've had sitting around.
Only accessories would be PS, and ALT.

jlcustomz

Besides the crossmember mods, g or f-body pedals, bracket for master cylinder, etc, you really need to enlarge the transmission tunnel slightly to keep proper geometry & not have driveline vibration problems. I just slit the top of my tunnel & added a strip of metal back to it.

Everyone will have their different clutch experiences & opinions, my Monster stage 3 with lighter billet flywheel steel has been great.
Also I went with all autometer ultralite gauges including electric speedo when I did the ls1/t-56 swap back in 2002. This was a good upgrade to match the setup.
The one thing about any ls swaps is there are several different ways of fitting & going about each swap issue. There are many more choices now than when I did my swap.
I believe sick speed monte is one of the regulars here with a more recently done swap.

85GPLEf41

iTrader: (4)

did my stock ls1 and t56 swap using a John Bzdel manual clutch pedal
.http://www.ls7montess.com/

working great so far! hardest part was cutting out the master cylinder hole! as for the crossmember I reused the stock 2004r with the mount redone and the cutout for the dual exhaust.. best mod so far!!

StrokerTA

Yea we were going to do AutoMeter gauges anyways.
Anyone use the BRP 2" headers with a 6 speed?

shockerman80

iTrader: (1)

ive used the brp 1 7/8 headers with my swap they use adaptor plates with stock mounts. fit with 1" setback but a little close so I made some 3/4 setback plates for more clearance.

lt4malibu

iTrader: (39)

I had a T56 in mine with the LT1 13 years ago, Bzdel pedal worked great.

A.R. Shale Targa

iTrader: (2)

I thought MERV went to a 430 incher and a slushbox ????

Cuttin up

I have a el camino style clutch pedal hanging from the original pedal set in my cutlass, it just has a longer bolt and bushings to connect it and the brake pedal pad is cut down to match the clutch pedal pad. I used the ls1 f-body master and slave cylinder setup and it perfectly comes up through the g-body's factory cruise control hole, you just have to elongate the hole a little at the top. the trans is tight on the floor, you either old school it and beat the hell out of the floor or cut and raise it a little.

speedtigger

iTrader: (16)

He may have. I know that 408 never ran up to its potential.

StrokerTA

Sounds like a cool deal. You have any pictures?

N20zuki

I used 3rd gen Fbody pedals and modified them to fit the Gbody firewall and hydraulics from a 4th gen Fbody as well. Gforce T56 crossmember, stock Fbody hurst shifter, and BFH mod the transmission tunnel along with 1in setback motor mounts. I am not running 2in headers, but 1-3/4 midlengths (wish I had long tubes)4

Hope the Maggie you intend to run is a TVS2300 with those giant headers, on a 370. Might be overkill for the blower if not.

Number1

iTrader: (1)

Check out sickspeedmonte. He builds kits. http://www.sickspeedmonte.com/Clutch.html