Small block 727 to big block 727 crossmember help.

[thequickster]

So I have a 1967 Coronet with 318, 727. And I bought a 68 Imperial and took the 440 and big block 727 out of that. My question is do I need the transmission crossmember out of the Imperial or will mine work with the other transmission?

 

['73bird]

Yes you need the crossmember/Kmember and the motor mounts unless you want to fabricate

 

[PurpleBeeper]

I don't know for sure.... but I don't think the engine K-member, the transmission cross-member from a C-body will fit in a B-body???

 

['73bird]

I don't know for sure.... but I don't think the engine K-member, the transmission cross-member from a C-body will fit in a B-body???

O I didn't even think of that. Then again Im not fully versed on which is a b body or a body.

 

[thequickster]

Interesting, I'll have to get it out just in case thanks guys.

 

[Kern Dog]

Whether the 727 is from a big block or small, they use the same crossmember since the only external difference is the bell housing bolt pattern. What matters is the body style that the crossmember fits. A fits only A, B fits B and some E bodies, etc.

 

[thequickster]

I got the cross member out earlier today, just in case , but thanks for the wisdom guys. Also got someone to buy the Imperial so that's pretty cool. That money's going into the 440
-Thequickster

 

[Bb70charger500]

Trans cross member is fine as Kern said but your motor mounts are going to need attn. If you get the conversion kit all will bolt up or grab a big block K frame. Then all will be good . Unless that's a biscuit motor mount setup then you might get lucky but trans is identical except the bell housing bolts

 

[MCODECUDA]

The small block and big block k-member for your Coronet is the same.

 

[jamey]

Your 318 k frame is the same as a bigblock. All you need to put the 440 in your car are the motor mounts from the 440 and use your original tranny crossmember.

 

[monaco66coupe]

all true. Big block Motor mounts are the same B or C. Crossmember needs to be for the B body, the C body will not fit. Your original will work fine.

 

[thequickster]

Thanks for all the wisdom guys, really taking a lot of worries away. It's my first time doing an engine swap.
-Thequickster