Big Block engine mounts? - Team Camaro Tech
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post #1 of 7 (permalink) Old Dec 30th, 04, 04:08 AM Thread Starter
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I have a big block in my Z/28 and changed the engine mounts to the correct BB mounts last year. It previously had SB mounts with all the problems that creates. Now the engine sits perfectly and everythings fits as it should.

BUT

I have one concern. It looks like the engine is placed further to the front now. The shifter even hits the floor when I use 1st or 3rd gear.

The clutchlinkage looks like it is a little angled to the front.

The frame sits where it should, I had it off but it is lined up properly.

Anybody knew about any meassurements I could check?


Jan

Jan Suhr
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'69 Camaro Z-28, X77, Cortez Silver, LS1 / T56, Still has the original BU rear end

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post #2 of 7 (permalink) Old Dec 30th, 04, 06:31 AM
 
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Clutch linkage for small blocks is different than the bigblock stuff. Give Rick's Camaro a call.
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post #3 of 7 (permalink) Old Dec 30th, 04, 06:32 AM
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Jan,

I do not have measurements, but the factory big block stands do move the engine forward 1/2" or so. I remember comparing them directly to the small block versions.

Jody


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post #4 of 7 (permalink) Old Dec 30th, 04, 06:48 AM Thread Starter
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Thanks Jody,

I then have to cut the shifter hole some to make clearance. It looks like they cut that hole depending on the transmission the car was equiped with.

Jan

Jan Suhr
Stockholm, Sweden
'69 Camaro Z-28, X77, Cortez Silver, LS1 / T56, Still has the original BU rear end

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post #5 of 7 (permalink) Old Dec 31st, 04, 06:42 AM
 
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FWIW, a BB Z-bar is wider by like a 1/2" or so then a SB Z-bar, too. I have posted the exact length diff. if you want to search for it.

Everything else should be the same b/c I changed to a BB Z-bar and my M-20's shifter bolted up fine and even went through my console right too.

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post #6 of 7 (permalink) Old Dec 31st, 04, 04:04 PM
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There is a also different shifter mount for big blocks. It moves the shifter back to the SB location. It also uses different shifter rods. The SB rods aren't quite long enough with the BB mount. (Maybe some are, but ours weren't). They have different part numbers too.
Nothing is easy.............

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69 Coupe; ZZ430; TKO600; 3.55 posi; 13" Baer 4 wheel discs; 17" Billet Specialties wheels; Hotchkis/Koni rear; Ride Tech front; Classic AutoAir AC and power windows cuz I'm old and lazy!
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post #7 of 7 (permalink) Old Dec 31st, 04, 06:11 PM
 
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Joe,

Like I said, my SB car's M-20 Muncie shifter bolted up fine after I installed my BB using NOS frame mounts and all poly mounts.

My shifter arms have plenty of threads on them and can adjust quite a distance...

Maybe it's b/c I am still using my SB tranny cross member but I doubt it b/c the tranny kicked over the needed distance b/c of the frame mounts moving the block over and everything still bolted up fine??

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