[DeTomaso] modular engine questions

[boyd casey]

Are the new 5 liter modular engines (like the new Boss 302) smaller in over
all dimensions then the 4.6 liter engines? How difficult is it to fit one
of these 5 liter engines into the Pantera ? What type of bell housing is
used to mate the Modular engines to the ZF dash-2? What is the difference
between  a double disc clutch and a single disc? (besides one more disc!)
Advantages, disadvantages etc.
Thanks,
Boyd