DejanM31

I want to swap bad 302 engine in my 65 Mustang Coupe with a 351w from 69 Mustang.
I think it will fit fine, hight looks ok. Can someone tell me, how will i be able to connect 351w engine with my exaust system? I think my heaaders from 302 will fit on the engine, but they could be to wide for the engine bay.

Hoy can i use "header" that is already on the 351w engine (see pics) and connect them with my exaust system? Is there a kit to do this or can i just plug in some home made tubs?

Old engine with headers:




New engine:

TexasAxMan

You can't put a 351 in a '65 without modifying the shock towers.

rmodel65

a 351 is a drop in with the right exhaust no need for anything other than that..

DejanM31

What do you mean with the right exaust?

TomKat

maybe smaller headers probably can't run long tubes without modifying the towers

rmodel65

you can run long tube headers without touching the towers..

mr_velocity

May also have to do some spring work with the additional weight.

jlg2002

here's some perhaps, authoritative information and the 351 weighs about 25 lbs more that the 302.
http://www.themustangshop.com/351swap.cfm

mr_velocity

Better go read your link His estimate is 65 - 75 lbs with the C being another 25 on top of that.

I looked at doing this swap, aluminum heads and intake would bring it very close. Moving the battery to the trunk and aluminum intake will also bring it close. Just found I could make the same power with a 302 and went that route even after having the 351 sitting on the floor of the garage.