Settle It - Schumacher Mounts / 73-74 B Big Block Conversion

[RallyeMike]

Its been mentioned several times on this site that when using the Schumacher conversion mounts to put a big block into a 73-74 B-body, that the engine sits higher than with stock mounts. I've heard as much as 1-inch, but that seems like a lot. A different height can throw off the drive line angle and can make header fitment a party-pooper. I know I had to mangle the Hookers more than normal.

I am posting photos of a 73 Charger, original 318 K-frame, with Schumacher conversion mounts install per the directions. Measuring with a straight edge across the fenders, it is 9 inches from the straight edge to the 440 pad by the drivers cylinder head. To know once and for all I need someone with an original 440 73-74 Charger to take the same measurement for comparison.

Alternately, I measured 9-3/8" from a straight edge across the fenders to the water pump boss (see 3rd photo), so this could be compared to a 73-74 Charger with stock motor mounts and a 383 or 400.

I expect some variations due to worn out trans mounts, etc. but this exercise will give us an idea.

[73-Charger-Canada]

This is really insightful and I'm sure will help a lot of people! I'm hoping to do this very install this weekend, and I will take measurements and pictures to see how close we line up ( to get an idea how much variation there is with the schumacher mounts, if any, or differences with small block k frames). Also, I'm installing in front of an A833, so we'll see if that changes anything. My car has the small block k-member with conversion mounts from Schumacher, so it will be apples to apples for comparison

[RallyeMike]

Nobody has an original 73-74 Big Block Charger willing to measure? 

[flyinlow]

I can't help with the original 440 k frame numbers.  I have a 440 sitting on schumaker  mounts on a '73 318 k frame. mine measured 8 1/2 " to the pad. The stock pan is about 1/4-1/2 " higher than the bottom of the k frame.  Hedman headers fit with some work, mostly for the Eddy heads and mini starter. I have a A518 trans with no driveshaft issues.  

Eight years so far. The mounts are poly and hold up well but transfer more vibration to the steering wheel.  I replaced the worn rubber k frame isolators with poly. I think the k frame is slightly  farther from the stub frame than it was with the worn factory ones. Did not think to measure before and after.

[Nacho-RT74]

my car is thousand miles from home, and is actually with engine out

[TeleThunder]

Checked my 73 Charger, replaced the original 400 engine with a 69 383 using the 400 mounts, new trans mounts. These enginenes does not look 100% same at that spot but think I measured at same spot you did, top of bolt boss:

244mm=9.6inches

[RallyeMike]

Checked my 73 Charger, replaced the original 400 engine with a 69 383 using the 400 mounts, new trans mounts. These enginenes does not look 100% same at that spot but think I measured at same spot you did, top of bolt boss:

244mm=9.6inches

Yea, we are probably being a little less than scientific here, but that is good input. Thanks.