lol dont have a y pipe ... it fell in 2 when I took it off (rusty)... I was buying dual exhaust for it befor the motor blew didnt make it that far lol

but thanks for the heads up...

 

The 351 manifolds will still fit a 302, there's no difference there. The 302 is the same length front to rear as a 351W, it's shorter in height and narrower in width but the manifolds used were the same (for the most part) the difference being made up in the already oft-mentioned Y-pipe.

 

thought the distance from the top to the collector on the 351w manifolds was longer than the 302s. I know its that way in later models.

 

A lot of the earlier ones used the same manifolds. There were a few special manifolds that were more free-flowing, and I seem to recall certain 351W manifolds from the early seventies that more desirable to run on a 302 for that reason, but any overall height such as you mention shouldn't be enough to matter. I would use whichever manifolds fit the car better. If the CV motor has the shorty headers, then I'd use them.

 

is there any benifit of using shorty headers/ headers going into dual exhaust on a 302 ... that would cost more in gas money right or wrong ?

or would it be the same amount of gas money I was using in the 351w, running with stock manifolds and 2 foot long rusted up y-pipe filled with holes and no exhaust past that ?

 

I am going to have to change the oil pan this might cause problems..... the low end is on a different side than the old motor ...... is this bad ?

 

oh yeah, its not bad but Im sure the W one doesnt fit the 302

 

nope its bigger........ and it has a hole in the side of it lol

 

will I have to change anything else besides just changing oil pans??
that sounds too easy to be true lol..... and canadian tire dont have em .... will napa?

 

you should just be able to swap pans, there is the possibility you need the oil pump as well...dont quote me on that, you might be able to use the 351ws on the 302 tho....dont quote me on that either.

 

The W pan has a larger semi-circle in the rear where it goes over the rear main bearing, due to the W's larger (3") mains, so it won't fit the 302. I suspect you have a front sump pan in the LTD and the CV probably had a dual sump pan. The front sump pan is quite common, you'll just need the pan and the pickup tube to match.

And the shorty headers shouldn't get you any worse milage, and with a decent exhaust system behind them it might do a little better.

I can't be sure since I'm not as familiar with automatic trannies, but it occurs to me there's a chance that your torque convertor from the LTD won't match up to the flex plate on the CV motor. Don't just switch flex plates as the imbalance between the two isn't the same. But we'll cross that bridge when we come to it, it may fit, I'm just not sure...

 

do I just ask for the oil pan, and pick up tube for a 1977 ford ltd II with a 302?

cv motor dont have the flex plate with it, I have to use the old one off the 351w.....

what can happen ?

 

if you try to use the 351 flexplate your 302 will blow up in probably a week or less... the 1991 302 has a 50 oz imbalance and the 351w has a 28 oz imbalance... the difference will toast the bearings and possibly break the crank. as for the oil pan, i just ordered a brand new front sump one from summit for my 302 based stroker... 75 dollars for the chromed pan and pickup.

 

i went to napa they want $214 for a new oil pan .... and no listing of remanufactured ones ..........

plan b i guess ... I dont have this kinda money for oil pans

2 cars for sale in winnipeg, manitoba

1977 ford ltd II, brown, 2door, cc, vinel bench seat, am fm radio, white vinel top very nice, not running (no motor) (some rust on fenders)

1978 ford ltd II, brougham, red, 2 door, 351 m 400 engine running
cc, ac, am fm radio, cloth seats, split bench (very little rust)

neither saftied
$500 for both
(no registration for 78)

 

that was fast ... traded for a 1986 f150 with a running 302