Hot Rod Forum banner

1 - 7 of 7 Posts

·
Registered
Joined
·
143 Posts
Discussion Starter #1
What are the differences in say a 69 351w and an 80's model fuel injected 351w. The reason im asking is I want to put a 351 in my mustang and stroke it to a 408 my friend is taking he's 351 out of his ford truck and said I can have it. Ive heard of different deck heights for some 351's. I would ditch the fuel injection and run a carb victor Jr. and a solid cam.
Thanks in advance
 

·
Registered
Joined
·
385 Posts
As far as i know there is no deck height difference in the 351w from the factory aftermarket yes.351w fi engine will have a different combustion chamber shape. and it wont have afuel pump on the timing cover you need to change that.
 

·
Registered
Joined
·
2,384 Posts
351 W

The only difference is the intake, ignition, and the fuel pump is electric instead of mechanical. so you will need an earlier timing cover. Otherwise your early ignition and intake will work. The compression chamber size was 60cc up through 74, and had 1.85 intake/ 1.56 exhaust valves. Your mid 80's heads have a 69cc chamber and 1.78 intake/ 1.48 exhaust valves.

Other than the fuel system, ignition, and fuel pump, the later 351 is a bolt in.

If you were going to run the earlier intake manifold you would have to plug two bolt holes on each side, as the early intake had 8 bolts per side, the later ones have 6 bolts per side. You can use a later model or 6 bolt intake on the earlier heads, with no modifications.

The bolt holes to plug would be 2nd and 7th on each side.

All 351W's have a 9.5 deck height.

As for the cam, I recommend contacting Camresearch in Englewood, Colorado. They are Ford specialists, ground the solid lifter cam I have in my 351W.
 
1 - 7 of 7 Posts
Top