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12-09-2008, 08:24 AM
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#1 |
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Chevy nut
Join Date: Jun 2007
Location: Springfield, Illinois
Posts: 2,266
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Muncie M-21
Ok here is what I am doing. I am hoping someone else is doing this. My 69 LWB is getting this: I am going 454, Muncie M-21 4 speed and a 4:10 posi. I dont have this mocked up yet cause I am still working on stropping the rust off the frame. I was thinking the begin with was the cut the floor hole in the side of the hump for the shifter and use a shifter hump like out of a GTO or comparable A Body GM. My next thought was the cross member. I almost think I am going to have to fab on up or modify an original one.
Has anyone else tried this?
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84 Chevy Custom Deluxe 1/2 Ton Named Fade To Black II "Remember kids there is NO replacement for displacement!" |
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12-09-2008, 10:44 AM
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#2 |
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Registered User
 Join Date: Jul 2008
Location: Grande Prairie Alberta
Posts: 59
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Re: Muncie M-21
I'm going to use a sbc with a m-21 in my '67 swb, I was going to move the trans x-member to the proper location. I can't remember off the top of my head but I think it only has to be moved back a tad. I also purchased a shifter from hurst for our trucks P/N 391 0002.
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12-09-2008, 12:02 PM
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#3 |
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: Muncie M-21
I use a car belhousing (w/o mounts)The trans has a rear mount that bolts to an automatic crossmember.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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12-09-2008, 01:31 PM
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#4 | |
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Chevy nut
Join Date: Jun 2007
Location: Springfield, Illinois
Posts: 2,266
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Re: Muncie M-21
Quote:
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84 Chevy Custom Deluxe 1/2 Ton Named Fade To Black II "Remember kids there is NO replacement for displacement!" |
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12-09-2008, 02:12 PM
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#5 |
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Registered User
Join Date: Apr 2003
Location: NB
Posts: 3,367
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Re: Muncie M-21
I have 383 M 21 3:73
I used a flat piece of steel plate for the x member. Just drilled holes and bolted right up. half hour job. 1/2" thick by 3" wide.
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1968 Chevy C10 307 3ott fleetside 1967 Chevy C/10 V8, 3spd, fleetside lwb.Sold 1967 Chev C/10 step, 383, M21. SOLD |
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12-09-2008, 02:44 PM
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#6 |
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Registered User
Join Date: Nov 2008
Location: Gwinnett GA
Posts: 1,803
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Re: Muncie M-21
Nice transmission choice!
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1982 K10 SWB 1987 V20 - Sold - Doh! |
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12-09-2008, 08:17 PM
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#7 |
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Account Suspended
Join Date: Sep 2008
Location: Alva Florida
Posts: 668
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Re: Muncie M-21
sounds good next year i will be puting the 292 in the truck what 4speed should i put in and will a 373 rear gear work
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12-09-2008, 09:33 PM
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#8 |
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Registered User
Join Date: Oct 2006
Location: Rock Hill, SC
Posts: 421
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Re: Muncie M-21
I did the same as 67cheveall with the crossmember. No problems, oh I used the car bellhousing also.
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1968 chevy shortbed, Dark Shadow Gray 4 bolt 383 Stroker,Weiand Super Charger, disc brakes, 9 inch, 391 gear, 20" Eagle wheels, muncie 4 speed/ Hurst shifter, 4/7 drop, Hedman midlengths, 3 inch exhaust w/ 2 chamber flows. 1966 Mustang with 306 roller, c-4, 9 inch Detroit locker rear. 1965 Fastback Mustang w/347 stroker, top loader 4spd, 9 inch detroit locker. 1966 Mustang coup, 306 roller, c4, 9 inch. 65 Cobra, 427, T6oo, 9inch, of course. First gen Hayabusa, airbox mod and running 2 exhaust cams.. Zoom Zoom Zoom |
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12-09-2008, 11:50 PM
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#9 |
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Registered User
Join Date: Oct 2006
Location: Rock Hill, SC
Posts: 421
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Re: Muncie M-21
The only issues we have seen are that there are appearently "NO" long tube headers made by anyone in the free world that will fit a 68 swb C-10 manual trans. truck...I am open for suggestions though.PPPPLLLease
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1968 chevy shortbed, Dark Shadow Gray 4 bolt 383 Stroker,Weiand Super Charger, disc brakes, 9 inch, 391 gear, 20" Eagle wheels, muncie 4 speed/ Hurst shifter, 4/7 drop, Hedman midlengths, 3 inch exhaust w/ 2 chamber flows. 1966 Mustang with 306 roller, c-4, 9 inch Detroit locker rear. 1965 Fastback Mustang w/347 stroker, top loader 4spd, 9 inch detroit locker. 1966 Mustang coup, 306 roller, c4, 9 inch. 65 Cobra, 427, T6oo, 9inch, of course. First gen Hayabusa, airbox mod and running 2 exhaust cams.. Zoom Zoom Zoom |
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12-10-2008, 12:35 AM
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#11 |
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Registered User
Join Date: Oct 2006
Location: Rock Hill, SC
Posts: 421
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Re: Muncie M-21
I don't think so Tim! although, swappy swappy for 6 spd?? wink wink nudge nudge...
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1968 chevy shortbed, Dark Shadow Gray 4 bolt 383 Stroker,Weiand Super Charger, disc brakes, 9 inch, 391 gear, 20" Eagle wheels, muncie 4 speed/ Hurst shifter, 4/7 drop, Hedman midlengths, 3 inch exhaust w/ 2 chamber flows. 1966 Mustang with 306 roller, c-4, 9 inch Detroit locker rear. 1965 Fastback Mustang w/347 stroker, top loader 4spd, 9 inch detroit locker. 1966 Mustang coup, 306 roller, c4, 9 inch. 65 Cobra, 427, T6oo, 9inch, of course. First gen Hayabusa, airbox mod and running 2 exhaust cams.. Zoom Zoom Zoom |
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12-10-2008, 12:54 AM
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#12 | |
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Chevy nut
Join Date: Jun 2007
Location: Springfield, Illinois
Posts: 2,266
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Re: Muncie M-21
Quote:
__________________
84 Chevy Custom Deluxe 1/2 Ton Named Fade To Black II "Remember kids there is NO replacement for displacement!" |
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