What is the engize size in a 98 GT i.e. 289, 302... and what is the largest that could fit in a 98 GT i.e. 331 or 247...?

 

98 gt is a 281 aka 4.6L. my friend has a 454 in a sn95, so you can put whatever you want in there. get ready to cut the firewall tho..

 

4.6 = 281 ci

 

thanks

 

and just incase you need to know any other engines, and you like math too...........

1 liter = 61.0237441 cubic inches

 

Yep, and a general rule of thumb, is 1 liter = 61.03 cubic inches.

 

5.0 = 302
4.6 = 281
3.8 = 232

owned all 3 engines

 

can a 331 or a 347 fit in a 98 GT engine bay or no?

 

Well the 351R was a saleen with a 351 windsor engine mounted between the fenders so you can get that in there.

 

Both of those motors are stroked 5.0L or 302s. The 94 and 95 sn95s had 5.0Ls so they should fit. I think you have to swap the older K member or get an aftermarket one. I haven't really looked it to it as I plan to build up my modular motor.